======================================
| [    9.824562][  T216] softirqs last disabled at (19902): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [    9.824565][  T216] Preemption disabled at:
| [    9.824566][  T216] 0x0
| [    9.824575][  T216] Tainted: [W]=WARN
[    9.824576][  T216] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.824578][  T216] Call Trace:
[    9.824579][  T216]  <TASK>
[    9.824580][  T216]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.824587][  T216]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.824591][  T216]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.824596][  T216]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.824600][  T216]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[    9.824602][  T216]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.824608][  T216]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.824611][  T216]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.824614][  T216]  put_chars (drivers/char/virtio_console.c:1176)
[    9.824617][  T216]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.824618][  T216]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.824622][  T216]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.824627][  T216]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.824634][  T216]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.824637][  T216]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.824639][  T216]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.824643][  T216]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.824647][  T216]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.824648][  T216]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[    9.824652][  T216]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.824653][  T216]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.824657][  T216]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.824661][  T216]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.824663][  T216]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.824668][  T216]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.824671][  T216]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.824673][  T216]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.824675][  T216]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[    9.824678][  T216]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.824680][  T216]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.824683][  T216]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.824686][  T216]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.824689][  T216]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.824692][  T216]  _printk (kernel/printk/printk.c:2504)
[    9.824696][  T216]  ? snapshot_read.cold (user.c:?)
[    9.824699][  T216]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[    9.824701][  T216]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.824705][  T216]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[    9.824708][  T216]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[    9.824711][  T216]  ? exit_notify (kernel/exit.c:780)
[    9.824713][  T216]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.824715][  T216]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.824719][  T216]  do_group_exit (kernel/exit.c:1151)
[    9.824722][  T216]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[    9.824723][  T216]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[    9.824726][  T216]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.824730][  T216]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.824733][  T216]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.824735][  T216] RIP: 0033:0x7fb3ef5dc1b8
[    9.824737][  T216] Code: Unable to access opcode bytes at 0x7fb3ef5dc18e.

Code starting with the faulting instruction
===========================================
[    9.824738][  T216] RSP: 002b:00007ffcf85f5c68 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[    9.824740][  T216] RAX: ffffffffffffffda RBX: 00007fb3ef70cf88 RCX: 00007fb3ef5dc1b8
[    9.824742][  T216] RDX: 00007fb3ef326fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[    9.824743][  T216] RBP: 00007ffcf85f5cc0 R08: 0000000000000000 R09: 0000000000000050
[    9.824743][  T216] R10: 00007ffcf85f5a80 R11: 0000000000000246 R12: 0000000000000001
[    9.824744][  T216] R13: 0000000000000000 R14: 00007fb3ef70b680 R15: 00007fb3ef70cfa0
| [   11.543682][  T255] softirqs last disabled at (60593): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.543684][  T255] Preemption disabled at:
| [   11.543685][  T255] 0x0
| [   11.543695][  T255] Tainted: [W]=WARN
[   11.543696][  T255] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.543697][  T255] Call Trace:
[   11.543699][  T255]  <TASK>
[   11.543700][  T255]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.543706][  T255]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.543711][  T255]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.543715][  T255]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.543719][  T255]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   11.543721][  T255]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.543728][  T255]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   11.543731][  T255]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.543735][  T255]  put_chars (drivers/char/virtio_console.c:1176)
[   11.543737][  T255]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.543738][  T255]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.543742][  T255]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.543747][  T255]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.543754][  T255]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.543757][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.543759][  T255]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.543763][  T255]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.543767][  T255]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.543769][  T255]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   11.543772][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.543773][  T255]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.543777][  T255]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.543781][  T255]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.543783][  T255]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.543788][  T255]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.543791][  T255]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.543793][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.543795][  T255]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   11.543799][  T255]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.543800][  T255]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.543803][  T255]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.543806][  T255]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.543809][  T255]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.543812][  T255]  _printk (kernel/printk/printk.c:2504)
[   11.543816][  T255]  ? snapshot_read.cold (user.c:?)
[   11.543819][  T255]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   11.543821][  T255]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.543825][  T255]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   11.543828][  T255]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   11.543832][  T255]  ? exit_notify (kernel/exit.c:780)
[   11.543833][  T255]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.543836][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.543839][  T255]  do_group_exit (kernel/exit.c:1151)
[   11.543842][  T255]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   11.543844][  T255]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   11.543846][  T255]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.543850][  T255]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.543853][  T255]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.543855][  T255] RIP: 0033:0x7f779aed81b8
[   11.543857][  T255] Code: Unable to access opcode bytes at 0x7f779aed818e.

Code starting with the faulting instruction
===========================================
[   11.543858][  T255] RSP: 002b:00007ffe28bde9a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   11.543860][  T255] RAX: ffffffffffffffda RBX: 00007f779b008f88 RCX: 00007f779aed81b8
[   11.543861][  T255] RDX: 00007f779ac22fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   11.543862][  T255] RBP: 00007ffe28bdea00 R08: 0000000000000000 R09: 0000000000008010
[   11.543863][  T255] R10: 00007ffe28bde7c0 R11: 0000000000000246 R12: 0000000000000001
[   11.543864][  T255] R13: 0000000000000000 R14: 00007f779b007680 R15: 00007f779b008fa0
| [   12.648704][  T274] softirqs last disabled at (50098): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   12.648707][  T274] Preemption disabled at:
| [   12.648708][  T274] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.648716][  T274] Tainted: [W]=WARN
[   12.648717][  T274] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.648719][  T274] Call Trace:
[   12.648721][  T274]  <TASK>
[   12.648722][  T274]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.648727][  T274]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.648729][  T274]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.648733][  T274]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.648737][  T274]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.648742][  T274]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   12.648744][  T274]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.648750][  T274]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   12.648752][  T274]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.648756][  T274]  put_chars (drivers/char/virtio_console.c:1176)
[   12.648758][  T274]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.648765][  T274]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.648772][  T274]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.648775][  T274]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.648779][  T274]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.648783][  T274]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.648785][  T274]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   12.648789][  T274]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.648791][  T274]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.648795][  T274]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.648799][  T274]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.648801][  T274]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.648806][  T274]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.648809][  T274]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.648811][  T274]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.648813][  T274]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   12.648816][  T274]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.648818][  T274]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.648821][  T274]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.648824][  T274]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.648826][  T274]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   12.648831][  T274]  _printk (kernel/printk/printk.c:2504)
[   12.648835][  T274]  ? snapshot_read.cold (user.c:?)
[   12.648837][  T274]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.648839][  T274]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.648842][  T274]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.648844][  T274]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   12.648848][  T274]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   12.648850][  T274]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.648853][  T274]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   12.648855][  T274]  ? netdev_notice (net/core/dev.c:13194)
[   12.648858][  T274]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.648861][  T274]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.648864][  T274]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.648867][  T274]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.648869][  T274]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   12.648871][  T274]  ? register_netdev (net/core/dev.c:11618)
[   12.648873][  T274]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   12.648878][  T274]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   12.648881][  T274]  ? __kernel_text_address (kernel/extable.c:79)
[   12.648883][  T274]  ? write_profile (profile.c:?)
[   12.648887][  T274]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   12.648892][  T274]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.648896][  T274]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.648898][  T274]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.648899][  T274]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.648901][  T274]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.648904][  T274]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.648906][  T274]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.648908][  T274]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.648910][  T274]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.648912][  T274]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.648913][  T274]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.648914][  T274]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   12.648916][  T274]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.648918][  T274]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   12.648921][  T274]  ? ___sys_sendmsg (net/socket.c:2758)
[   12.648925][  T274]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.648927][  T274]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.648930][  T274]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.648931][  T274]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.648933][  T274]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.648934][  T274]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.648935][  T274]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.648938][  T274]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   12.648939][  T274]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.648940][  T274]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.648944][  T274]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.648945][  T274]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.648950][  T274]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.648952][  T274]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.648957][  T274]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.648962][  T274]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.648964][  T274]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.648969][  T274]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.648970][  T274]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.648972][  T274]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.648974][  T274]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.648978][  T274]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.648980][  T274]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.648983][  T274]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.648984][  T274]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.648989][  T274]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.648991][  T274]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.648994][  T274]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.648997][  T274]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.648999][  T274]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.649006][  T274]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   12.649008][  T274]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   12.649012][  T274]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.649016][  T274]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.649018][  T274]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.649022][  T274]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.649026][  T274]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.649030][  T274]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.649031][  T274]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   12.649036][  T274]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   12.649039][  T274]  ____sys_sendmsg (net/socket.c:2713)
[   12.649041][  T274]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.649043][  T274]  ? sock_write_iter (net/socket.c:1269)
[   12.649045][  T274]  ? move_addr_to_kernel (net/socket.c:258)
[   12.649052][  T274]  ___sys_sendmsg (net/socket.c:2767)
[   12.649055][  T274]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.649070][  T274]  __sys_sendmsg (net/socket.c:2799)
[   12.649073][  T274]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.649079][  T274]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.649082][  T274]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.649088][  T274]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.649091][  T274]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.649093][  T274] RIP: 0033:0x7fcd2cf3c54e
[   12.649097][  T274] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.649099][  T274] RSP: 002b:00007ffdd5d992d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.649101][  T274] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fcd2cf3c54e
[   12.649103][  T274] RDX: 0000000000000000 RSI: 00007ffdd5d99380 RDI: 0000000000000005
[   12.649104][  T274] RBP: 00007ffdd5d992e0 R08: 0000000000000000 R09: 0000000000000000
[   12.649105][  T274] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9142e8
[   12.649105][  T274] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdd5d99a40
| [   17.605204][   T12] softirqs last disabled at (24500): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109)
| [   17.605206][   T12] Preemption disabled at:
| [   17.605207][   T12] 0x0
| [   17.605216][   T12] Tainted: [W]=WARN
[   17.605217][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.605219][   T12] Workqueue: netns cleanup_net
[   17.605222][   T12] Call Trace:
[   17.605223][   T12]  <TASK>
[   17.605225][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.605232][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.605236][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.605240][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   17.605248][   T12]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   17.605250][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.605257][   T12]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   17.605259][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.605263][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   17.605266][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.605272][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.605280][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.605284][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.605288][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.605293][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.605295][   T12]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   17.605298][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.605301][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.605305][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.605309][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.605311][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.605317][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.605320][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.605322][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.605323][   T12]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   17.605327][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.605329][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.605332][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.605335][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.605336][   T12]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   17.605342][   T12]  _printk (kernel/printk/printk.c:2504)
[   17.605346][   T12]  ? snapshot_read.cold (user.c:?)
[   17.605354][   T12]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   17.605358][   T12]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   17.605362][   T12]  br_device_event (net/bridge/br.c:111)
[   17.605364][   T12]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   17.605368][   T12]  ? packet_sendmsg_spkt (af_packet.c:?)
[   17.605374][   T12]  notifier_call_chain (kernel/notifier.c:85)
[   17.605380][   T12]  netif_close_many (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:1829)
[   17.605383][   T12]  ? trace_kfree (./include/trace/events/kmem.h:97 (discriminator 22))
[   17.605386][   T12]  ? __dev_close_many (net/core/dev.c:1804)
[   17.605389][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12411)
[   17.605394][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12487)
[   17.605396][   T12]  ? ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   17.605398][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   17.605400][   T12]  ? kthread (kernel/kthread.c:436)
[   17.605402][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   17.605405][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   17.605408][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:419 (discriminator 3))
[   17.605416][   T12]  default_device_exit_batch (net/core/dev.c:12589 net/core/dev.c:13288)
[   17.605419][   T12]  ? unregister_netdevice_queue (./include/linux/list.h:173)
[   17.605422][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.605424][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   17.605429][   T12]  ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   17.605432][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   17.605435][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   17.605437][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.605440][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   17.605445][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   17.605448][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   17.605452][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.605454][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.605457][   T12]  process_one_work (kernel/workqueue.c:3387)
[   17.605464][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   17.605467][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.605475][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   17.605482][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   17.605485][   T12]  kthread (kernel/kthread.c:436)
[   17.605486][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   17.605490][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   17.605493][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   17.605495][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   17.605499][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   17.605502][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   17.605505][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   20.657842][  T397] softirqs last disabled at (40594): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   20.657845][  T397] Preemption disabled at:
| [   20.657845][  T397] vprintk_emit (kernel/printk/printk.c:2471)
| [   20.657854][  T397] Tainted: [W]=WARN
[   20.657855][  T397] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.657856][  T397] Call Trace:
[   20.657858][  T397]  <TASK>
[   20.657860][  T397]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   20.657866][  T397]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   20.657867][  T397]  __might_resched.cold (kernel/sched/core.c:9234)
[   20.657872][  T397]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   20.657876][  T397]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   20.657881][  T397]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   20.657882][  T397]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.657889][  T397]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   20.657892][  T397]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.657895][  T397]  put_chars (drivers/char/virtio_console.c:1176)
[   20.657898][  T397]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   20.657904][  T397]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   20.657911][  T397]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   20.657914][  T397]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.657918][  T397]  console_emit_next_record (kernel/printk/printk.c:3183)
[   20.657922][  T397]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   20.657924][  T397]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   20.657927][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.657930][  T397]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.657934][  T397]  console_flush_one_record (kernel/printk/printk.c:3268)
[   20.657938][  T397]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   20.657940][  T397]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.657945][  T397]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   20.657948][  T397]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   20.657950][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.657951][  T397]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   20.657955][  T397]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   20.657957][  T397]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   20.657959][  T397]  vprintk_emit (kernel/printk/printk.c:2479)
[   20.657962][  T397]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   20.657965][  T397]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   20.657970][  T397]  _printk (kernel/printk/printk.c:2504)
[   20.657973][  T397]  ? snapshot_read.cold (user.c:?)
[   20.657975][  T397]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   20.657977][  T397]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.657980][  T397]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   20.657982][  T397]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   20.657986][  T397]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   20.657988][  T397]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   20.657990][  T397]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   20.657993][  T397]  ? netdev_notice (net/core/dev.c:13194)
[   20.657996][  T397]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.657999][  T397]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.658001][  T397]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   20.658005][  T397]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   20.658007][  T397]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   20.658009][  T397]  ? register_netdev (net/core/dev.c:11618)
[   20.658010][  T397]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   20.658016][  T397]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   20.658018][  T397]  ? __kernel_text_address (kernel/extable.c:79)
[   20.658020][  T397]  ? write_profile (profile.c:?)
[   20.658025][  T397]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   20.658030][  T397]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   20.658033][  T397]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   20.658035][  T397]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   20.658037][  T397]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   20.658039][  T397]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   20.658042][  T397]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   20.658044][  T397]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.658046][  T397]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   20.658048][  T397]  ? kasan_save_stack (mm/kasan/common.c:58)
[   20.658050][  T397]  ? kasan_save_stack (mm/kasan/common.c:57)
[   20.658051][  T397]  ? kasan_save_track (mm/kasan/common.c:78)
[   20.658052][  T397]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   20.658054][  T397]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.658056][  T397]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   20.658059][  T397]  ? ___sys_sendmsg (net/socket.c:2758)
[   20.658063][  T397]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.658065][  T397]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   20.658068][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.658069][  T397]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.658071][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.658072][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.658073][  T397]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   20.658076][  T397]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   20.658077][  T397]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   20.658079][  T397]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   20.658082][  T397]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   20.658083][  T397]  ? nla_get_range_signed (lib/nlattr.c:270)
[   20.658088][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.658090][  T397]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   20.658095][  T397]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   20.658100][  T397]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.658102][  T397]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.658106][  T397]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.658108][  T397]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.658110][  T397]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.658112][  T397]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.658116][  T397]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   20.658118][  T397]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   20.658121][  T397]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.658122][  T397]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.658130][  T397]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.658132][  T397]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.658135][  T397]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   20.658138][  T397]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.658141][  T397]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   20.658148][  T397]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   20.658150][  T397]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   20.658154][  T397]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   20.658158][  T397]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.658160][  T397]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.658164][  T397]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   20.658168][  T397]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   20.658172][  T397]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.658174][  T397]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   20.658179][  T397]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   20.658182][  T397]  ____sys_sendmsg (net/socket.c:2713)
[   20.658184][  T397]  ? copy_msghdr_from_user (net/socket.c:2650)
[   20.658186][  T397]  ? sock_write_iter (net/socket.c:1269)
[   20.658187][  T397]  ? move_addr_to_kernel (net/socket.c:258)
[   20.658195][  T397]  ___sys_sendmsg (net/socket.c:2767)
[   20.658197][  T397]  ? copy_msghdr_from_user (net/socket.c:2619)
[   20.658213][  T397]  __sys_sendmsg (net/socket.c:2799)
[   20.658215][  T397]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   20.658222][  T397]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.658224][  T397]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   20.658227][  T397]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   20.658230][  T397]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.658232][  T397] RIP: 0033:0x7f5e6a4b554e
[   20.658236][  T397] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   20.658238][  T397] RSP: 002b:00007ffc81577960 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   20.658240][  T397] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f5e6a4b554e
[   20.658241][  T397] RDX: 0000000000000000 RSI: 00007ffc81577a10 RDI: 0000000000000005
[   20.658245][  T397] RBP: 00007ffc81577970 R08: 0000000000000000 R09: 0000000000000000
[   20.658246][  T397] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9142f0
[   20.658247][  T397] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc815780d0
| [   21.736991][  T420] softirqs last disabled at (19032): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   21.736993][  T420] Preemption disabled at:
| [   21.736993][  T420] vprintk_emit (kernel/printk/printk.c:2471)
| [   21.737002][  T420] Tainted: [W]=WARN
[   21.737003][  T420] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.737004][  T420] Call Trace:
[   21.737006][  T420]  <TASK>
[   21.737007][  T420]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.737013][  T420]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   21.737014][  T420]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.737019][  T420]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.737023][  T420]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   21.737027][  T420]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   21.737029][  T420]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.737035][  T420]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   21.737038][  T420]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.737042][  T420]  put_chars (drivers/char/virtio_console.c:1176)
[   21.737044][  T420]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.737045][  T420]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.737049][  T420]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.737054][  T420]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.737062][  T420]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.737064][  T420]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.737066][  T420]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.737070][  T420]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.737074][  T420]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.737076][  T420]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   21.737079][  T420]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.737081][  T420]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.737085][  T420]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.737089][  T420]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.737091][  T420]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.737096][  T420]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.737099][  T420]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.737101][  T420]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.737102][  T420]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   21.737106][  T420]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.737108][  T420]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.737111][  T420]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.737114][  T420]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.737116][  T420]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.737118][  T420]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   21.737122][  T420]  _printk (kernel/printk/printk.c:2504)
[   21.737125][  T420]  ? snapshot_read.cold (user.c:?)
[   21.737135][  T420]  ? br_multicast_flood (??:?)
[   21.737138][  T420]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   21.737139][  T420]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   21.737141][  T420]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   21.737145][  T420]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   21.737149][  T420]  br_init_port (net/bridge/br_stp_if.c:39)
[   21.737151][  T420]  new_nbp (net/bridge/br_if.c:449)
[   21.737155][  T420]  br_add_if (net/bridge/br_if.c:592)
[   21.737157][  T420]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   21.737161][  T420]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   21.737166][  T420]  do_set_master (net/core/rtnetlink.c:3071)
[   21.737170][  T420]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   21.737173][  T420]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   21.737176][  T420]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   21.737177][  T420]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   21.737180][  T420]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   21.737183][  T420]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.737185][  T420]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.737187][  T420]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.737189][  T420]  ? kasan_save_stack (mm/kasan/common.c:58)
[   21.737191][  T420]  ? kasan_save_stack (mm/kasan/common.c:57)
[   21.737192][  T420]  ? kasan_save_track (mm/kasan/common.c:78)
[   21.737194][  T420]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   21.737196][  T420]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.737198][  T420]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   21.737201][  T420]  ? ___sys_sendmsg (net/socket.c:2758)
[   21.737204][  T420]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.737206][  T420]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.737209][  T420]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.737210][  T420]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.737212][  T420]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.737213][  T420]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.737215][  T420]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   21.737217][  T420]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   21.737220][  T420]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   21.737222][  T420]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.737225][  T420]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   21.737226][  T420]  ? nla_get_range_signed (lib/nlattr.c:270)
[   21.737231][  T420]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.737233][  T420]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   21.737238][  T420]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   21.737245][  T420]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.737247][  T420]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.737251][  T420]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.737253][  T420]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.737256][  T420]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.737257][  T420]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.737261][  T420]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.737263][  T420]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   21.737266][  T420]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.737267][  T420]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.737271][  T420]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.737273][  T420]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.737277][  T420]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   21.737280][  T420]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.737283][  T420]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.737289][  T420]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   21.737291][  T420]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   21.737295][  T420]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.737299][  T420]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.737302][  T420]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.737306][  T420]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   21.737310][  T420]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   21.737313][  T420]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.737315][  T420]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   21.737320][  T420]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   21.737323][  T420]  ____sys_sendmsg (net/socket.c:2713)
[   21.737325][  T420]  ? copy_msghdr_from_user (net/socket.c:2650)
[   21.737327][  T420]  ? sock_write_iter (net/socket.c:1269)
[   21.737329][  T420]  ? move_addr_to_kernel (net/socket.c:258)
[   21.737336][  T420]  ___sys_sendmsg (net/socket.c:2767)
[   21.737339][  T420]  ? copy_msghdr_from_user (net/socket.c:2619)
[   21.737354][  T420]  __sys_sendmsg (net/socket.c:2799)
[   21.737357][  T420]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   21.737363][  T420]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.737366][  T420]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   21.737368][  T420]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   21.737371][  T420]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.737373][  T420] RIP: 0033:0x7f58fe09654e
[   21.737377][  T420] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   21.737379][  T420] RSP: 002b:00007fff7d569430 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.737381][  T420] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f58fe09654e
[   21.737383][  T420] RDX: 0000000000000000 RSI: 00007fff7d5694e0 RDI: 0000000000000005
[   21.737384][  T420] RBP: 00007fff7d569440 R08: 0000000000000000 R09: 0000000000000000
[   21.737384][  T420] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9142f1
[   21.737385][  T420] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff7d569bb0
| [   26.421416][   T12] softirqs last disabled at (201328): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109)
| [   26.421418][   T12] Preemption disabled at:
| [   26.421419][   T12] 0x0
| [   26.421428][   T12] Tainted: [W]=WARN
[   26.421429][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.421431][   T12] Workqueue: netns cleanup_net
[   26.421434][   T12] Call Trace:
[   26.421436][   T12]  <TASK>
[   26.421438][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.421444][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.421449][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.421452][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   26.421457][   T12]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   26.421459][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.421465][   T12]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   26.421468][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.421472][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   26.421474][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.421481][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.421489][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.421492][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.421497][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.421501][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.421503][   T12]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   26.421506][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.421509][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.421513][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.421517][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.421519][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.421524][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.421527][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.421529][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.421531][   T12]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   26.421535][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.421536][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.421539][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.421542][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.421544][   T12]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   26.421546][   T12]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.421548][   T12]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   26.421553][   T12]  _printk (kernel/printk/printk.c:2504)
[   26.421556][   T12]  ? snapshot_read.cold (user.c:?)
[   26.421564][   T12]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   26.421569][   T12]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   26.421572][   T12]  br_device_event (net/bridge/br.c:111)
[   26.421574][   T12]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   26.421578][   T12]  ? packet_sendmsg_spkt (af_packet.c:?)
[   26.421584][   T12]  notifier_call_chain (kernel/notifier.c:85)
[   26.421589][   T12]  netif_close_many (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:1829)
[   26.421593][   T12]  ? trace_kfree (./include/trace/events/kmem.h:97 (discriminator 22))
[   26.421596][   T12]  ? __dev_close_many (net/core/dev.c:1804)
[   26.421599][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12411)
[   26.421603][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12487)
[   26.421606][   T12]  ? ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   26.421608][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   26.421610][   T12]  ? kthread (kernel/kthread.c:436)
[   26.421612][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   26.421614][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   26.421617][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:419 (discriminator 3))
[   26.421625][   T12]  default_device_exit_batch (net/core/dev.c:12589 net/core/dev.c:13288)
[   26.421628][   T12]  ? unregister_netdevice_queue (./include/linux/list.h:173)
[   26.421631][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.421633][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   26.421637][   T12]  ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   26.421641][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   26.421644][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   26.421645][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.421648][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   26.421653][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   26.421656][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   26.421660][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.421662][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.421666][   T12]  process_one_work (kernel/workqueue.c:3387)
[   26.421672][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   26.421675][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.421683][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   26.421690][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   26.421692][   T12]  kthread (kernel/kthread.c:436)
[   26.421694][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.421698][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   26.421700][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   26.421703][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   26.421706][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   26.421710][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   26.421713][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.293803][  T525] softirqs last disabled at (50832): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   29.293805][  T525] Preemption disabled at:
| [   29.293806][  T525] vprintk_emit (kernel/printk/printk.c:2471)
| [   29.293814][  T525] Tainted: [W]=WARN
[   29.293815][  T525] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.293816][  T525] Call Trace:
[   29.293818][  T525]  <TASK>
[   29.293820][  T525]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.293825][  T525]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   29.293827][  T525]  __might_resched.cold (kernel/sched/core.c:9234)
[   29.293831][  T525]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.293835][  T525]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   29.293839][  T525]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   29.293841][  T525]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.293847][  T525]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   29.293850][  T525]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.293854][  T525]  put_chars (drivers/char/virtio_console.c:1176)
[   29.293856][  T525]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   29.293862][  T525]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   29.293870][  T525]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   29.293873][  T525]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.293877][  T525]  console_emit_next_record (kernel/printk/printk.c:3183)
[   29.293881][  T525]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   29.293883][  T525]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   29.293886][  T525]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.293889][  T525]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.293893][  T525]  console_flush_one_record (kernel/printk/printk.c:3268)
[   29.293897][  T525]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   29.293899][  T525]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.293904][  T525]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   29.293907][  T525]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   29.293909][  T525]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.293911][  T525]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   29.293914][  T525]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   29.293916][  T525]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   29.293919][  T525]  vprintk_emit (kernel/printk/printk.c:2479)
[   29.293922][  T525]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   29.293924][  T525]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   29.293929][  T525]  _printk (kernel/printk/printk.c:2504)
[   29.293933][  T525]  ? snapshot_read.cold (user.c:?)
[   29.293935][  T525]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.293937][  T525]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   29.293940][  T525]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   29.293942][  T525]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   29.293946][  T525]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   29.293949][  T525]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   29.293951][  T525]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   29.293953][  T525]  ? netdev_notice (net/core/dev.c:13194)
[   29.293956][  T525]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.293960][  T525]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.293962][  T525]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   29.293965][  T525]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   29.293967][  T525]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   29.293970][  T525]  ? register_netdev (net/core/dev.c:11618)
[   29.293971][  T525]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   29.293976][  T525]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   29.293978][  T525]  ? __kernel_text_address (kernel/extable.c:79)
[   29.293981][  T525]  ? write_profile (profile.c:?)
[   29.293984][  T525]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   29.293990][  T525]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   29.293993][  T525]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   29.293995][  T525]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   29.293996][  T525]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   29.293998][  T525]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   29.294002][  T525]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.294003][  T525]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   29.294005][  T525]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   29.294008][  T525]  ? kasan_save_stack (mm/kasan/common.c:58)
[   29.294009][  T525]  ? kasan_save_stack (mm/kasan/common.c:57)
[   29.294010][  T525]  ? kasan_save_track (mm/kasan/common.c:78)
[   29.294012][  T525]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   29.294014][  T525]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.294016][  T525]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   29.294018][  T525]  ? ___sys_sendmsg (net/socket.c:2758)
[   29.294022][  T525]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.294024][  T525]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   29.294027][  T525]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.294028][  T525]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.294030][  T525]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.294031][  T525]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.294032][  T525]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   29.294035][  T525]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   29.294036][  T525]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   29.294038][  T525]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   29.294041][  T525]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   29.294042][  T525]  ? nla_get_range_signed (lib/nlattr.c:270)
[   29.294047][  T525]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.294049][  T525]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   29.294054][  T525]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   29.294059][  T525]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.294061][  T525]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.294065][  T525]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.294067][  T525]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.294069][  T525]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.294071][  T525]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.294074][  T525]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.294076][  T525]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   29.294079][  T525]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.294081][  T525]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.294085][  T525]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.294087][  T525]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.294090][  T525]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   29.294093][  T525]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.294096][  T525]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   29.294102][  T525]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   29.294104][  T525]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   29.294108][  T525]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   29.294112][  T525]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   29.294115][  T525]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.294119][  T525]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   29.294123][  T525]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   29.294126][  T525]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.294128][  T525]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   29.294133][  T525]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   29.294136][  T525]  ____sys_sendmsg (net/socket.c:2713)
[   29.294138][  T525]  ? copy_msghdr_from_user (net/socket.c:2650)
[   29.294140][  T525]  ? sock_write_iter (net/socket.c:1269)
[   29.294142][  T525]  ? move_addr_to_kernel (net/socket.c:258)
[   29.294149][  T525]  ___sys_sendmsg (net/socket.c:2767)
[   29.294151][  T525]  ? copy_msghdr_from_user (net/socket.c:2619)
[   29.294171][  T525]  __sys_sendmsg (net/socket.c:2799)
[   29.294174][  T525]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   29.294180][  T525]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.294183][  T525]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   29.294185][  T525]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   29.294188][  T525]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.294190][  T525] RIP: 0033:0x7fdd2f4bf54e
[   29.294194][  T525] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   29.294196][  T525] RSP: 002b:00007ffed21da3e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   29.294199][  T525] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fdd2f4bf54e
[   29.294200][  T525] RDX: 0000000000000000 RSI: 00007ffed21da490 RDI: 0000000000000005
[   29.294201][  T525] RBP: 00007ffed21da3f0 R08: 0000000000000000 R09: 0000000000000000
[   29.294202][  T525] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9142f8
[   29.294203][  T525] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffed21dab50
| [   35.105801][  T585] softirqs last disabled at (32392): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   35.105803][  T585] Preemption disabled at:
| [   35.105804][  T585] vprintk_emit (kernel/printk/printk.c:2471)
| [   35.105812][  T585] Tainted: [W]=WARN
[   35.105813][  T585] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.105815][  T585] Call Trace:
[   35.105816][  T585]  <TASK>
[   35.105818][  T585]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   35.105823][  T585]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   35.105825][  T585]  __might_resched.cold (kernel/sched/core.c:9234)
[   35.105829][  T585]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   35.105833][  T585]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   35.105837][  T585]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   35.105839][  T585]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   35.105846][  T585]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   35.105849][  T585]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   35.105853][  T585]  put_chars (drivers/char/virtio_console.c:1176)
[   35.105855][  T585]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   35.105861][  T585]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   35.105869][  T585]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   35.105872][  T585]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   35.105876][  T585]  console_emit_next_record (kernel/printk/printk.c:3183)
[   35.105880][  T585]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   35.105882][  T585]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   35.105885][  T585]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.105888][  T585]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   35.105892][  T585]  console_flush_one_record (kernel/printk/printk.c:3268)
[   35.105896][  T585]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   35.105898][  T585]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.105903][  T585]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   35.105906][  T585]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   35.105908][  T585]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.105909][  T585]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   35.105913][  T585]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   35.105914][  T585]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   35.105917][  T585]  vprintk_emit (kernel/printk/printk.c:2479)
[   35.105920][  T585]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   35.105922][  T585]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   35.105924][  T585]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.105925][  T585]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.105929][  T585]  _printk (kernel/printk/printk.c:2504)
[   35.105933][  T585]  ? snapshot_read.cold (user.c:?)
[   35.105935][  T585]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   35.105937][  T585]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   35.105940][  T585]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   35.105942][  T585]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   35.105946][  T585]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   35.105948][  T585]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   35.105950][  T585]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   35.105953][  T585]  ? netdev_notice (net/core/dev.c:13194)
[   35.105956][  T585]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.105959][  T585]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   35.105961][  T585]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   35.105964][  T585]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   35.105966][  T585]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   35.105969][  T585]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   35.105973][  T585]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   35.105977][  T585]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   35.105983][  T585]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   35.105986][  T585]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   35.105989][  T585]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   35.105990][  T585]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   35.105992][  T585]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   35.105996][  T585]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   35.105997][  T585]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   35.105999][  T585]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   35.106001][  T585]  ? kasan_save_stack (mm/kasan/common.c:58)
[   35.106003][  T585]  ? kasan_save_stack (mm/kasan/common.c:57)
[   35.106004][  T585]  ? kasan_save_track (mm/kasan/common.c:78)
[   35.106006][  T585]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   35.106008][  T585]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.106010][  T585]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   35.106013][  T585]  ? ___sys_sendmsg (net/socket.c:2758)
[   35.106017][  T585]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   35.106018][  T585]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   35.106021][  T585]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.106023][  T585]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   35.106024][  T585]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.106025][  T585]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.106027][  T585]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   35.106029][  T585]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   35.106032][  T585]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   35.106033][  T585]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   35.106037][  T585]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   35.106038][  T585]  ? nla_get_range_signed (lib/nlattr.c:270)
[   35.106043][  T585]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.106045][  T585]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   35.106050][  T585]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   35.106055][  T585]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   35.106057][  T585]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.106061][  T585]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   35.106063][  T585]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.106065][  T585]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   35.106067][  T585]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   35.106071][  T585]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   35.106073][  T585]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   35.106076][  T585]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   35.106077][  T585]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.106081][  T585]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   35.106083][  T585]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.106086][  T585]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   35.106089][  T585]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   35.106092][  T585]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   35.106098][  T585]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   35.106100][  T585]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   35.106105][  T585]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   35.106108][  T585]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   35.106111][  T585]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.106115][  T585]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   35.106119][  T585]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   35.106123][  T585]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   35.106124][  T585]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   35.106129][  T585]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   35.106132][  T585]  ____sys_sendmsg (net/socket.c:2713)
[   35.106134][  T585]  ? copy_msghdr_from_user (net/socket.c:2650)
[   35.106136][  T585]  ? sock_write_iter (net/socket.c:1269)
[   35.106138][  T585]  ? move_addr_to_kernel (net/socket.c:258)
[   35.106145][  T585]  ___sys_sendmsg (net/socket.c:2767)
[   35.106148][  T585]  ? copy_msghdr_from_user (net/socket.c:2619)
[   35.106163][  T585]  __sys_sendmsg (net/socket.c:2799)
[   35.106166][  T585]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   35.106172][  T585]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.106175][  T585]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   35.106178][  T585]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   35.106180][  T585]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.106183][  T585] RIP: 0033:0x7fa61da1c54e
[   35.106187][  T585] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   35.106188][  T585] RSP: 002b:00007ffc574daf40 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   35.106191][  T585] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fa61da1c54e
[   35.106192][  T585] RDX: 0000000000000000 RSI: 00007ffc574daff0 RDI: 0000000000000005
[   35.106193][  T585] RBP: 00007ffc574daf50 R08: 0000000000000000 R09: 0000000000000000
[   35.106194][  T585] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9142fe
[   35.106194][  T585] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc574db6b0
| [   36.322676][  T632] softirqs last disabled at (36190): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   36.322679][  T632] Preemption disabled at:
| [   36.322679][  T632] vprintk_emit (kernel/printk/printk.c:2471)
| [   36.322688][  T632] Tainted: [W]=WARN
[   36.322689][  T632] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.322691][  T632] Call Trace:
[   36.322692][  T632]  <TASK>
[   36.322694][  T632]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   36.322700][  T632]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   36.322701][  T632]  __might_resched.cold (kernel/sched/core.c:9234)
[   36.322706][  T632]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   36.322710][  T632]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   36.322714][  T632]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   36.322716][  T632]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   36.322723][  T632]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   36.322725][  T632]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   36.322729][  T632]  put_chars (drivers/char/virtio_console.c:1176)
[   36.322731][  T632]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   36.322738][  T632]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   36.322745][  T632]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   36.322748][  T632]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   36.322753][  T632]  console_emit_next_record (kernel/printk/printk.c:3183)
[   36.322757][  T632]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   36.322759][  T632]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   36.322762][  T632]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.322765][  T632]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   36.322769][  T632]  console_flush_one_record (kernel/printk/printk.c:3268)
[   36.322773][  T632]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   36.322775][  T632]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.322780][  T632]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   36.322783][  T632]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   36.322785][  T632]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.322787][  T632]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   36.322790][  T632]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   36.322792][  T632]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   36.322795][  T632]  vprintk_emit (kernel/printk/printk.c:2479)
[   36.322798][  T632]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   36.322800][  T632]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   36.322802][  T632]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.322803][  T632]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.322807][  T632]  _printk (kernel/printk/printk.c:2504)
[   36.322811][  T632]  ? snapshot_read.cold (user.c:?)
[   36.322813][  T632]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   36.322815][  T632]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   36.322818][  T632]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   36.322820][  T632]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   36.322824][  T632]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   36.322827][  T632]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   36.322829][  T632]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   36.322832][  T632]  ? netdev_notice (net/core/dev.c:13194)
[   36.322834][  T632]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.322837][  T632]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   36.322840][  T632]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   36.322843][  T632]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   36.322845][  T632]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   36.322848][  T632]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   36.322852][  T632]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   36.322856][  T632]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   36.322862][  T632]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   36.322866][  T632]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   36.322869][  T632]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   36.322870][  T632]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   36.322872][  T632]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   36.322875][  T632]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   36.322877][  T632]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   36.322879][  T632]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   36.322881][  T632]  ? kasan_save_stack (mm/kasan/common.c:58)
[   36.322883][  T632]  ? kasan_save_stack (mm/kasan/common.c:57)
[   36.322884][  T632]  ? kasan_save_track (mm/kasan/common.c:78)
[   36.322886][  T632]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   36.322888][  T632]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.322890][  T632]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   36.322893][  T632]  ? ___sys_sendmsg (net/socket.c:2758)
[   36.322897][  T632]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   36.322899][  T632]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   36.322902][  T632]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.322903][  T632]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   36.322905][  T632]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.322906][  T632]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.322908][  T632]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   36.322910][  T632]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   36.322912][  T632]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   36.322914][  T632]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   36.322918][  T632]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   36.322919][  T632]  ? nla_get_range_signed (lib/nlattr.c:270)
[   36.322924][  T632]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.322926][  T632]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   36.322931][  T632]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   36.322936][  T632]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   36.322938][  T632]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.322943][  T632]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   36.322945][  T632]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.322947][  T632]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   36.322948][  T632]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   36.322952][  T632]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   36.322954][  T632]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   36.322957][  T632]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.322958][  T632]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.322963][  T632]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   36.322965][  T632]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.322968][  T632]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   36.322971][  T632]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.322974][  T632]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   36.322981][  T632]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   36.322983][  T632]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   36.322987][  T632]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   36.322991][  T632]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   36.322994][  T632]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.322998][  T632]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   36.323002][  T632]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   36.323006][  T632]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   36.323007][  T632]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   36.323013][  T632]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   36.323015][  T632]  ____sys_sendmsg (net/socket.c:2713)
[   36.323017][  T632]  ? copy_msghdr_from_user (net/socket.c:2650)
[   36.323020][  T632]  ? sock_write_iter (net/socket.c:1269)
[   36.323021][  T632]  ? move_addr_to_kernel (net/socket.c:258)
[   36.323029][  T632]  ___sys_sendmsg (net/socket.c:2767)
[   36.323032][  T632]  ? copy_msghdr_from_user (net/socket.c:2619)
[   36.323048][  T632]  __sys_sendmsg (net/socket.c:2799)
[   36.323051][  T632]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   36.323057][  T632]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.323060][  T632]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   36.323063][  T632]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   36.323066][  T632]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.323068][  T632] RIP: 0033:0x7fd9b491f54e
[   36.323072][  T632] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   36.323074][  T632] RSP: 002b:00007ffca1de6740 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   36.323076][  T632] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fd9b491f54e
[   36.323078][  T632] RDX: 0000000000000000 RSI: 00007ffca1de67f0 RDI: 0000000000000005
[   36.323078][  T632] RBP: 00007ffca1de6750 R08: 0000000000000000 R09: 0000000000000000
[   36.323079][  T632] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9142ff
[   36.323080][  T632] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffca1de6eb0
| [   37.387066][  T679] softirqs last disabled at (37574): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   37.387069][  T679] Preemption disabled at:
| [   37.387069][  T679] vprintk_emit (kernel/printk/printk.c:2471)
| [   37.387077][  T679] Tainted: [W]=WARN
[   37.387078][  T679] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   37.387080][  T679] Call Trace:
[   37.387081][  T679]  <TASK>
[   37.387083][  T679]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   37.387089][  T679]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   37.387090][  T679]  __might_resched.cold (kernel/sched/core.c:9234)
[   37.387094][  T679]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   37.387099][  T679]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   37.387103][  T679]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   37.387105][  T679]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   37.387111][  T679]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   37.387114][  T679]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   37.387118][  T679]  put_chars (drivers/char/virtio_console.c:1176)
[   37.387120][  T679]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   37.387126][  T679]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   37.387134][  T679]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   37.387137][  T679]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.387141][  T679]  console_emit_next_record (kernel/printk/printk.c:3183)
[   37.387145][  T679]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   37.387147][  T679]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   37.387150][  T679]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.387153][  T679]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.387157][  T679]  console_flush_one_record (kernel/printk/printk.c:3268)
[   37.387161][  T679]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   37.387163][  T679]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.387168][  T679]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   37.387171][  T679]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   37.387173][  T679]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.387174][  T679]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   37.387178][  T679]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   37.387180][  T679]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   37.387183][  T679]  vprintk_emit (kernel/printk/printk.c:2479)
[   37.387186][  T679]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   37.387188][  T679]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   37.387189][  T679]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.387191][  T679]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.387195][  T679]  _printk (kernel/printk/printk.c:2504)
[   37.387199][  T679]  ? snapshot_read.cold (user.c:?)
[   37.387200][  T679]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   37.387203][  T679]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   37.387205][  T679]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   37.387214][  T679]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   37.387218][  T679]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   37.387220][  T679]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   37.387222][  T679]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   37.387225][  T679]  ? netdev_notice (net/core/dev.c:13194)
[   37.387228][  T679]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.387231][  T679]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   37.387233][  T679]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   37.387237][  T679]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   37.387239][  T679]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   37.387242][  T679]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   37.387247][  T679]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   37.387251][  T679]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   37.387257][  T679]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   37.387260][  T679]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   37.387264][  T679]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   37.387265][  T679]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   37.387267][  T679]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   37.387270][  T679]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   37.387272][  T679]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   37.387274][  T679]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   37.387276][  T679]  ? kasan_save_stack (mm/kasan/common.c:58)
[   37.387278][  T679]  ? kasan_save_stack (mm/kasan/common.c:57)
[   37.387279][  T679]  ? kasan_save_track (mm/kasan/common.c:78)
[   37.387281][  T679]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   37.387283][  T679]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.387285][  T679]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   37.387288][  T679]  ? ___sys_sendmsg (net/socket.c:2758)
[   37.387291][  T679]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   37.387293][  T679]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   37.387296][  T679]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.387298][  T679]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.387299][  T679]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.387300][  T679]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.387302][  T679]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   37.387304][  T679]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   37.387307][  T679]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   37.387309][  T679]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   37.387312][  T679]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   37.387313][  T679]  ? nla_get_range_signed (lib/nlattr.c:270)
[   37.387318][  T679]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.387320][  T679]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   37.387325][  T679]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   37.387330][  T679]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   37.387332][  T679]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.387337][  T679]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   37.387338][  T679]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.387340][  T679]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   37.387342][  T679]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   37.387346][  T679]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   37.387348][  T679]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   37.387351][  T679]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   37.387352][  T679]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.387357][  T679]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   37.387358][  T679]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.387362][  T679]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   37.387365][  T679]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   37.387368][  T679]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   37.387374][  T679]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   37.387376][  T679]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   37.387380][  T679]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   37.387384][  T679]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   37.387387][  T679]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.387391][  T679]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   37.387395][  T679]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   37.387399][  T679]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   37.387400][  T679]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   37.387405][  T679]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   37.387408][  T679]  ____sys_sendmsg (net/socket.c:2713)
[   37.387410][  T679]  ? copy_msghdr_from_user (net/socket.c:2650)
[   37.387413][  T679]  ? sock_write_iter (net/socket.c:1269)
[   37.387414][  T679]  ? move_addr_to_kernel (net/socket.c:258)
[   37.387421][  T679]  ___sys_sendmsg (net/socket.c:2767)
[   37.387424][  T679]  ? copy_msghdr_from_user (net/socket.c:2619)
[   37.387439][  T679]  __sys_sendmsg (net/socket.c:2799)
[   37.387442][  T679]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   37.387448][  T679]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.387451][  T679]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   37.387454][  T679]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   37.387457][  T679]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   37.387459][  T679] RIP: 0033:0x7f4f8947a54e
[   37.387463][  T679] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   37.387465][  T679] RSP: 002b:00007ffe0ef91450 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   37.387467][  T679] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f4f8947a54e
[   37.387469][  T679] RDX: 0000000000000000 RSI: 00007ffe0ef91500 RDI: 0000000000000005
[   37.387469][  T679] RBP: 00007ffe0ef91460 R08: 0000000000000000 R09: 0000000000000000
[   37.387470][  T679] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a914300
[   37.387471][  T679] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe0ef91bc0
| [   38.424358][  T726] softirqs last disabled at (36888): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   38.424360][  T726] Preemption disabled at:
| [   38.424361][  T726] vprintk_emit (kernel/printk/printk.c:2471)
| [   38.424370][  T726] Tainted: [W]=WARN
[   38.424371][  T726] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   38.424372][  T726] Call Trace:
[   38.424374][  T726]  <TASK>
[   38.424375][  T726]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   38.424381][  T726]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   38.424382][  T726]  __might_resched.cold (kernel/sched/core.c:9234)
[   38.424387][  T726]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   38.424391][  T726]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   38.424395][  T726]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   38.424397][  T726]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   38.424403][  T726]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   38.424406][  T726]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   38.424409][  T726]  put_chars (drivers/char/virtio_console.c:1176)
[   38.424412][  T726]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   38.424418][  T726]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   38.424425][  T726]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   38.424428][  T726]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.424433][  T726]  console_emit_next_record (kernel/printk/printk.c:3183)
[   38.424437][  T726]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   38.424438][  T726]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   38.424441][  T726]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.424444][  T726]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.424448][  T726]  console_flush_one_record (kernel/printk/printk.c:3268)
[   38.424452][  T726]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   38.424454][  T726]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   38.424459][  T726]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   38.424462][  T726]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   38.424464][  T726]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.424465][  T726]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   38.424469][  T726]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   38.424471][  T726]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   38.424474][  T726]  vprintk_emit (kernel/printk/printk.c:2479)
[   38.424477][  T726]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   38.424478][  T726]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   38.424480][  T726]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   38.424482][  T726]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   38.424486][  T726]  _printk (kernel/printk/printk.c:2504)
[   38.424490][  T726]  ? snapshot_read.cold (user.c:?)
[   38.424491][  T726]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   38.424494][  T726]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   38.424496][  T726]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   38.424499][  T726]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   38.424502][  T726]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   38.424505][  T726]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   38.424507][  T726]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   38.424510][  T726]  ? netdev_notice (net/core/dev.c:13194)
[   38.424512][  T726]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   38.424515][  T726]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   38.424518][  T726]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   38.424521][  T726]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   38.424523][  T726]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   38.424526][  T726]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   38.424529][  T726]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   38.424534][  T726]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   38.424539][  T726]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   38.424542][  T726]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   38.424546][  T726]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   38.424547][  T726]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   38.424549][  T726]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   38.424552][  T726]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   38.424554][  T726]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   38.424556][  T726]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   38.424558][  T726]  ? kasan_save_stack (mm/kasan/common.c:58)
[   38.424560][  T726]  ? kasan_save_stack (mm/kasan/common.c:57)
[   38.424561][  T726]  ? kasan_save_track (mm/kasan/common.c:78)
[   38.424562][  T726]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   38.424565][  T726]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   38.424567][  T726]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   38.424570][  T726]  ? ___sys_sendmsg (net/socket.c:2758)
[   38.424573][  T726]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   38.424575][  T726]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   38.424578][  T726]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.424580][  T726]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.424581][  T726]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.424582][  T726]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.424584][  T726]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   38.424586][  T726]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   38.424589][  T726]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   38.424590][  T726]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   38.424594][  T726]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   38.424595][  T726]  ? nla_get_range_signed (lib/nlattr.c:270)
[   38.424600][  T726]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.424602][  T726]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   38.424607][  T726]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   38.424612][  T726]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   38.424614][  T726]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   38.424618][  T726]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   38.424620][  T726]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   38.424622][  T726]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   38.424624][  T726]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   38.424627][  T726]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   38.424629][  T726]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   38.424632][  T726]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   38.424633][  T726]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   38.424638][  T726]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   38.424640][  T726]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   38.424643][  T726]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   38.424646][  T726]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   38.424649][  T726]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   38.424655][  T726]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   38.424657][  T726]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   38.424661][  T726]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   38.424665][  T726]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   38.424668][  T726]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   38.424672][  T726]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   38.424676][  T726]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   38.424679][  T726]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   38.424681][  T726]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   38.424686][  T726]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   38.424689][  T726]  ____sys_sendmsg (net/socket.c:2713)
[   38.424691][  T726]  ? copy_msghdr_from_user (net/socket.c:2650)
[   38.424693][  T726]  ? sock_write_iter (net/socket.c:1269)
[   38.424694][  T726]  ? move_addr_to_kernel (net/socket.c:258)
[   38.424702][  T726]  ___sys_sendmsg (net/socket.c:2767)
[   38.424704][  T726]  ? copy_msghdr_from_user (net/socket.c:2619)
[   38.424720][  T726]  __sys_sendmsg (net/socket.c:2799)
[   38.424722][  T726]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   38.424728][  T726]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.424731][  T726]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   38.424734][  T726]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   38.424737][  T726]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   38.424739][  T726] RIP: 0033:0x7f84876fc54e
[   38.424743][  T726] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   38.424744][  T726] RSP: 002b:00007ffccf81c210 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   38.424747][  T726] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f84876fc54e
[   38.424748][  T726] RDX: 0000000000000000 RSI: 00007ffccf81c2c0 RDI: 0000000000000005
[   38.424749][  T726] RBP: 00007ffccf81c220 R08: 0000000000000000 R09: 0000000000000000
[   38.424750][  T726] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a914301
[   38.424751][  T726] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffccf81c980
| [   41.181784][  T821] softirqs last disabled at (46964): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   41.181786][  T821] Preemption disabled at:
| [   41.181787][  T821] vprintk_emit (kernel/printk/printk.c:2471)
| [   41.181795][  T821] Tainted: [W]=WARN
[   41.181796][  T821] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   41.181798][  T821] Call Trace:
[   41.181799][  T821]  <TASK>
[   41.181801][  T821]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   41.181806][  T821]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   41.181808][  T821]  __might_resched.cold (kernel/sched/core.c:9234)
[   41.181812][  T821]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   41.181816][  T821]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   41.181821][  T821]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   41.181823][  T821]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   41.181829][  T821]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   41.181831][  T821]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   41.181835][  T821]  put_chars (drivers/char/virtio_console.c:1176)
[   41.181838][  T821]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   41.181844][  T821]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   41.181851][  T821]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   41.181854][  T821]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   41.181859][  T821]  console_emit_next_record (kernel/printk/printk.c:3183)
[   41.181863][  T821]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   41.181864][  T821]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   41.181868][  T821]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.181870][  T821]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   41.181874][  T821]  console_flush_one_record (kernel/printk/printk.c:3268)
[   41.181878][  T821]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   41.181880][  T821]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   41.181885][  T821]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   41.181888][  T821]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   41.181890][  T821]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.181891][  T821]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   41.181895][  T821]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   41.181897][  T821]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   41.181899][  T821]  vprintk_emit (kernel/printk/printk.c:2479)
[   41.181902][  T821]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   41.181905][  T821]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   41.181910][  T821]  _printk (kernel/printk/printk.c:2504)
[   41.181914][  T821]  ? snapshot_read.cold (user.c:?)
[   41.181915][  T821]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   41.181918][  T821]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   41.181920][  T821]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   41.181922][  T821]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   41.181926][  T821]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   41.181928][  T821]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   41.181931][  T821]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   41.181933][  T821]  ? netdev_notice (net/core/dev.c:13194)
[   41.181936][  T821]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   41.181939][  T821]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   41.181942][  T821]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   41.181945][  T821]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   41.181947][  T821]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   41.181949][  T821]  ? register_netdev (net/core/dev.c:11618)
[   41.181950][  T821]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   41.181955][  T821]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   41.181958][  T821]  ? __kernel_text_address (kernel/extable.c:79)
[   41.181960][  T821]  ? write_profile (profile.c:?)
[   41.181964][  T821]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   41.181969][  T821]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   41.181973][  T821]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   41.181975][  T821]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   41.181976][  T821]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   41.181978][  T821]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   41.181981][  T821]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   41.181983][  T821]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   41.181985][  T821]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   41.181987][  T821]  ? kasan_save_stack (mm/kasan/common.c:58)
[   41.181989][  T821]  ? kasan_save_stack (mm/kasan/common.c:57)
[   41.181990][  T821]  ? kasan_save_track (mm/kasan/common.c:78)
[   41.181991][  T821]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   41.181993][  T821]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   41.181995][  T821]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   41.181998][  T821]  ? ___sys_sendmsg (net/socket.c:2758)
[   41.182002][  T821]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   41.182004][  T821]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   41.182006][  T821]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.182008][  T821]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   41.182009][  T821]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.182010][  T821]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.182012][  T821]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   41.182014][  T821]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   41.182015][  T821]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   41.182017][  T821]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   41.182020][  T821]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   41.182022][  T821]  ? nla_get_range_signed (lib/nlattr.c:270)
[   41.182026][  T821]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.182028][  T821]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   41.182033][  T821]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   41.182038][  T821]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   41.182040][  T821]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   41.182044][  T821]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   41.182046][  T821]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   41.182048][  T821]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   41.182050][  T821]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   41.182053][  T821]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   41.182055][  T821]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   41.182058][  T821]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   41.182060][  T821]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   41.182064][  T821]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   41.182066][  T821]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   41.182069][  T821]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   41.182072][  T821]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   41.182075][  T821]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   41.182081][  T821]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   41.182083][  T821]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   41.182088][  T821]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   41.182091][  T821]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   41.182094][  T821]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   41.182098][  T821]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   41.182102][  T821]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   41.182105][  T821]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   41.182107][  T821]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   41.182112][  T821]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   41.182115][  T821]  ____sys_sendmsg (net/socket.c:2713)
[   41.182117][  T821]  ? copy_msghdr_from_user (net/socket.c:2650)
[   41.182119][  T821]  ? sock_write_iter (net/socket.c:1269)
[   41.182121][  T821]  ? move_addr_to_kernel (net/socket.c:258)
[   41.182128][  T821]  ___sys_sendmsg (net/socket.c:2767)
[   41.182130][  T821]  ? copy_msghdr_from_user (net/socket.c:2619)
[   41.182146][  T821]  __sys_sendmsg (net/socket.c:2799)
[   41.182148][  T821]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   41.182155][  T821]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.182157][  T821]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   41.182160][  T821]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   41.182163][  T821]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   41.182165][  T821] RIP: 0033:0x7fc3b028554e
[   41.182169][  T821] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   41.182171][  T821] RSP: 002b:00007ffd0cd1f0c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   41.182173][  T821] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fc3b028554e
[   41.182175][  T821] RDX: 0000000000000000 RSI: 00007ffd0cd1f170 RDI: 0000000000000005
[   41.182176][  T821] RBP: 00007ffd0cd1f0d0 R08: 0000000000000000 R09: 0000000000000000
[   41.182177][  T821] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a914304
[   41.182177][  T821] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd0cd1f830
| [   48.678773][  T923] softirqs last disabled at (39098): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   48.678776][  T923] Preemption disabled at:
| [   48.678776][  T923] vprintk_emit (kernel/printk/printk.c:2471)
| [   48.678784][  T923] Tainted: [W]=WARN
[   48.678785][  T923] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.678787][  T923] Call Trace:
[   48.678789][  T923]  <TASK>
[   48.678790][  T923]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   48.678796][  T923]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   48.678797][  T923]  __might_resched.cold (kernel/sched/core.c:9234)
[   48.678802][  T923]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   48.678806][  T923]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   48.678810][  T923]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   48.678812][  T923]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   48.678818][  T923]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   48.678821][  T923]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   48.678824][  T923]  put_chars (drivers/char/virtio_console.c:1176)
[   48.678827][  T923]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   48.678833][  T923]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   48.678840][  T923]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   48.678843][  T923]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   48.678848][  T923]  console_emit_next_record (kernel/printk/printk.c:3183)
[   48.678852][  T923]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   48.678854][  T923]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   48.678857][  T923]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.678859][  T923]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   48.678863][  T923]  console_flush_one_record (kernel/printk/printk.c:3268)
[   48.678867][  T923]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   48.678869][  T923]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   48.678874][  T923]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   48.678877][  T923]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   48.678879][  T923]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.678881][  T923]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   48.678884][  T923]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   48.678886][  T923]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   48.678889][  T923]  vprintk_emit (kernel/printk/printk.c:2479)
[   48.678892][  T923]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   48.678894][  T923]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   48.678899][  T923]  _printk (kernel/printk/printk.c:2504)
[   48.678903][  T923]  ? snapshot_read.cold (user.c:?)
[   48.678904][  T923]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   48.678907][  T923]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   48.678909][  T923]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   48.678911][  T923]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   48.678915][  T923]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   48.678918][  T923]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   48.678920][  T923]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   48.678923][  T923]  ? netdev_notice (net/core/dev.c:13194)
[   48.678925][  T923]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   48.678928][  T923]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   48.678931][  T923]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   48.678935][  T923]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   48.678936][  T923]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   48.678938][  T923]  ? register_netdev (net/core/dev.c:11618)
[   48.678940][  T923]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   48.678945][  T923]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   48.678948][  T923]  ? __kernel_text_address (kernel/extable.c:79)
[   48.678950][  T923]  ? write_profile (profile.c:?)
[   48.678954][  T923]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   48.678960][  T923]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   48.678963][  T923]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   48.678965][  T923]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   48.678966][  T923]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   48.678968][  T923]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   48.678971][  T923]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   48.678973][  T923]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   48.678975][  T923]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   48.678977][  T923]  ? kasan_save_stack (mm/kasan/common.c:58)
[   48.678979][  T923]  ? kasan_save_stack (mm/kasan/common.c:57)
[   48.678980][  T923]  ? kasan_save_track (mm/kasan/common.c:78)
[   48.678981][  T923]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   48.678984][  T923]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   48.678986][  T923]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   48.678988][  T923]  ? ___sys_sendmsg (net/socket.c:2758)
[   48.678992][  T923]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   48.678994][  T923]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   48.678997][  T923]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.678998][  T923]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   48.679000][  T923]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.679001][  T923]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.679003][  T923]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   48.679005][  T923]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   48.679006][  T923]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   48.679008][  T923]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   48.679011][  T923]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   48.679012][  T923]  ? nla_get_range_signed (lib/nlattr.c:270)
[   48.679017][  T923]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.679019][  T923]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   48.679024][  T923]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   48.679029][  T923]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   48.679031][  T923]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   48.679035][  T923]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   48.679037][  T923]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   48.679039][  T923]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   48.679041][  T923]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   48.679045][  T923]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   48.679047][  T923]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   48.679050][  T923]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   48.679051][  T923]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   48.679055][  T923]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   48.679057][  T923]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   48.679061][  T923]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   48.679064][  T923]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   48.679067][  T923]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   48.679073][  T923]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   48.679075][  T923]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   48.679079][  T923]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   48.679083][  T923]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   48.679085][  T923]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   48.679090][  T923]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   48.679093][  T923]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   48.679097][  T923]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   48.679099][  T923]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   48.679103][  T923]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   48.679106][  T923]  ____sys_sendmsg (net/socket.c:2713)
[   48.679108][  T923]  ? copy_msghdr_from_user (net/socket.c:2650)
[   48.679111][  T923]  ? sock_write_iter (net/socket.c:1269)
[   48.679112][  T923]  ? move_addr_to_kernel (net/socket.c:258)
[   48.679119][  T923]  ___sys_sendmsg (net/socket.c:2767)
[   48.679122][  T923]  ? copy_msghdr_from_user (net/socket.c:2619)
[   48.679137][  T923]  __sys_sendmsg (net/socket.c:2799)
[   48.679140][  T923]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   48.679146][  T923]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.679149][  T923]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   48.679152][  T923]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   48.679155][  T923]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   48.679157][  T923] RIP: 0033:0x7fe13821d54e
[   48.679161][  T923] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   48.679162][  T923] RSP: 002b:00007ffc5169c910 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   48.679165][  T923] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe13821d54e
[   48.679166][  T923] RDX: 0000000000000000 RSI: 00007ffc5169c9c0 RDI: 0000000000000005
[   48.679167][  T923] RBP: 00007ffc5169c920 R08: 0000000000000000 R09: 0000000000000000
[   48.679168][  T923] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91430c
[   48.679169][  T923] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc5169d080
| [   56.519045][ T1032] softirqs last disabled at (44500): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   56.519047][ T1032] Preemption disabled at:
| [   56.519048][ T1032] vprintk_emit (kernel/printk/printk.c:2471)
| [   56.519056][ T1032] Tainted: [W]=WARN
[   56.519057][ T1032] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   56.519059][ T1032] Call Trace:
[   56.519061][ T1032]  <TASK>
[   56.519062][ T1032]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   56.519068][ T1032]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   56.519070][ T1032]  __might_resched.cold (kernel/sched/core.c:9234)
[   56.519074][ T1032]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   56.519078][ T1032]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   56.519083][ T1032]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   56.519084][ T1032]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   56.519091][ T1032]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   56.519094][ T1032]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   56.519098][ T1032]  put_chars (drivers/char/virtio_console.c:1176)
[   56.519100][ T1032]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   56.519106][ T1032]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   56.519114][ T1032]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   56.519117][ T1032]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   56.519121][ T1032]  console_emit_next_record (kernel/printk/printk.c:3183)
[   56.519125][ T1032]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   56.519127][ T1032]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   56.519130][ T1032]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   56.519133][ T1032]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   56.519137][ T1032]  console_flush_one_record (kernel/printk/printk.c:3268)
[   56.519141][ T1032]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   56.519143][ T1032]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   56.519148][ T1032]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   56.519151][ T1032]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   56.519153][ T1032]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   56.519154][ T1032]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   56.519158][ T1032]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   56.519159][ T1032]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   56.519162][ T1032]  vprintk_emit (kernel/printk/printk.c:2479)
[   56.519165][ T1032]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   56.519168][ T1032]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   56.519173][ T1032]  _printk (kernel/printk/printk.c:2504)
[   56.519176][ T1032]  ? snapshot_read.cold (user.c:?)
[   56.519178][ T1032]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   56.519180][ T1032]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   56.519183][ T1032]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   56.519185][ T1032]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   56.519189][ T1032]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   56.519192][ T1032]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   56.519194][ T1032]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   56.519196][ T1032]  ? netdev_notice (net/core/dev.c:13194)
[   56.519199][ T1032]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   56.519202][ T1032]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   56.519205][ T1032]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   56.519208][ T1032]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   56.519210][ T1032]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   56.519212][ T1032]  ? register_netdev (net/core/dev.c:11618)
[   56.519214][ T1032]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   56.519219][ T1032]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   56.519221][ T1032]  ? __kernel_text_address (kernel/extable.c:79)
[   56.519223][ T1032]  ? write_profile (profile.c:?)
[   56.519227][ T1032]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   56.519233][ T1032]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   56.519237][ T1032]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   56.519239][ T1032]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   56.519240][ T1032]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   56.519245][ T1032]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   56.519248][ T1032]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   56.519250][ T1032]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   56.519252][ T1032]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   56.519254][ T1032]  ? kasan_save_stack (mm/kasan/common.c:58)
[   56.519256][ T1032]  ? kasan_save_stack (mm/kasan/common.c:57)
[   56.519257][ T1032]  ? kasan_save_track (mm/kasan/common.c:78)
[   56.519258][ T1032]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   56.519261][ T1032]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   56.519263][ T1032]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   56.519266][ T1032]  ? ___sys_sendmsg (net/socket.c:2758)
[   56.519269][ T1032]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   56.519271][ T1032]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   56.519274][ T1032]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   56.519276][ T1032]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   56.519277][ T1032]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   56.519278][ T1032]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   56.519280][ T1032]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   56.519282][ T1032]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   56.519283][ T1032]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   56.519285][ T1032]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   56.519288][ T1032]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   56.519290][ T1032]  ? nla_get_range_signed (lib/nlattr.c:270)
[   56.519294][ T1032]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   56.519296][ T1032]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   56.519305][ T1032]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   56.519310][ T1032]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   56.519312][ T1032]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   56.519317][ T1032]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   56.519319][ T1032]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   56.519320][ T1032]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   56.519322][ T1032]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   56.519326][ T1032]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   56.519328][ T1032]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   56.519331][ T1032]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   56.519332][ T1032]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   56.519337][ T1032]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   56.519338][ T1032]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   56.519342][ T1032]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   56.519345][ T1032]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   56.519348][ T1032]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   56.519354][ T1032]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   56.519356][ T1032]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   56.519361][ T1032]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   56.519364][ T1032]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   56.519367][ T1032]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   56.519371][ T1032]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   56.519375][ T1032]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   56.519379][ T1032]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   56.519380][ T1032]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   56.519385][ T1032]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   56.519388][ T1032]  ____sys_sendmsg (net/socket.c:2713)
[   56.519390][ T1032]  ? copy_msghdr_from_user (net/socket.c:2650)
[   56.519393][ T1032]  ? sock_write_iter (net/socket.c:1269)
[   56.519394][ T1032]  ? move_addr_to_kernel (net/socket.c:258)
[   56.519401][ T1032]  ___sys_sendmsg (net/socket.c:2767)
[   56.519404][ T1032]  ? copy_msghdr_from_user (net/socket.c:2619)
[   56.519419][ T1032]  __sys_sendmsg (net/socket.c:2799)
[   56.519422][ T1032]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   56.519428][ T1032]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   56.519431][ T1032]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   56.519434][ T1032]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   56.519437][ T1032]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   56.519439][ T1032] RIP: 0033:0x7f1de386c54e
[   56.519443][ T1032] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   56.519445][ T1032] RSP: 002b:00007ffd1a797360 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   56.519447][ T1032] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f1de386c54e
[   56.519449][ T1032] RDX: 0000000000000000 RSI: 00007ffd1a797410 RDI: 0000000000000005
[   56.519450][ T1032] RBP: 00007ffd1a797370 R08: 0000000000000000 R09: 0000000000000000
[   56.519450][ T1032] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a914313
[   56.519451][ T1032] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd1a797ad0
| [   62.327354][ T1094] softirqs last disabled at (40106): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   62.327357][ T1094] Preemption disabled at:
| [   62.327357][ T1094] vprintk_emit (kernel/printk/printk.c:2471)
| [   62.327366][ T1094] Tainted: [W]=WARN
[   62.327367][ T1094] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   62.327368][ T1094] Call Trace:
[   62.327370][ T1094]  <TASK>
[   62.327372][ T1094]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   62.327377][ T1094]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   62.327379][ T1094]  __might_resched.cold (kernel/sched/core.c:9234)
[   62.327383][ T1094]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   62.327387][ T1094]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   62.327392][ T1094]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   62.327393][ T1094]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   62.327400][ T1094]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   62.327402][ T1094]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   62.327406][ T1094]  put_chars (drivers/char/virtio_console.c:1176)
[   62.327409][ T1094]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   62.327415][ T1094]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   62.327422][ T1094]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   62.327425][ T1094]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   62.327429][ T1094]  console_emit_next_record (kernel/printk/printk.c:3183)
[   62.327433][ T1094]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   62.327435][ T1094]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   62.327438][ T1094]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.327441][ T1094]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   62.327445][ T1094]  console_flush_one_record (kernel/printk/printk.c:3268)
[   62.327449][ T1094]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   62.327451][ T1094]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.327456][ T1094]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   62.327459][ T1094]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   62.327460][ T1094]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.327462][ T1094]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   62.327466][ T1094]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   62.327467][ T1094]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   62.327470][ T1094]  vprintk_emit (kernel/printk/printk.c:2479)
[   62.327473][ T1094]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   62.327475][ T1094]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   62.327477][ T1094]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.327478][ T1094]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.327482][ T1094]  _printk (kernel/printk/printk.c:2504)
[   62.327486][ T1094]  ? snapshot_read.cold (user.c:?)
[   62.327488][ T1094]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   62.327490][ T1094]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   62.327493][ T1094]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   62.327495][ T1094]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   62.327498][ T1094]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   62.327501][ T1094]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   62.327503][ T1094]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   62.327506][ T1094]  ? netdev_notice (net/core/dev.c:13194)
[   62.327509][ T1094]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.327512][ T1094]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   62.327514][ T1094]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   62.327517][ T1094]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   62.327519][ T1094]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   62.327522][ T1094]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   62.327526][ T1094]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   62.327530][ T1094]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   62.327536][ T1094]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   62.327539][ T1094]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   62.327543][ T1094]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   62.327544][ T1094]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   62.327546][ T1094]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   62.327549][ T1094]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   62.327551][ T1094]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   62.327553][ T1094]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   62.327555][ T1094]  ? kasan_save_stack (mm/kasan/common.c:58)
[   62.327557][ T1094]  ? kasan_save_stack (mm/kasan/common.c:57)
[   62.327558][ T1094]  ? kasan_save_track (mm/kasan/common.c:78)
[   62.327560][ T1094]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   62.327562][ T1094]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.327564][ T1094]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   62.327567][ T1094]  ? ___sys_sendmsg (net/socket.c:2758)
[   62.327570][ T1094]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   62.327572][ T1094]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   62.327575][ T1094]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.327576][ T1094]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   62.327578][ T1094]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.327579][ T1094]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.327581][ T1094]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   62.327583][ T1094]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   62.327585][ T1094]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   62.327587][ T1094]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   62.327591][ T1094]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   62.327592][ T1094]  ? nla_get_range_signed (lib/nlattr.c:270)
[   62.327597][ T1094]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.327599][ T1094]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   62.327604][ T1094]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   62.327609][ T1094]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   62.327611][ T1094]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.327615][ T1094]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   62.327617][ T1094]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.327619][ T1094]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   62.327621][ T1094]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   62.327624][ T1094]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   62.327626][ T1094]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   62.327629][ T1094]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   62.327631][ T1094]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.327635][ T1094]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   62.327637][ T1094]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.327641][ T1094]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   62.327644][ T1094]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   62.327646][ T1094]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   62.327653][ T1094]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   62.327655][ T1094]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   62.327659][ T1094]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   62.327663][ T1094]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   62.327666][ T1094]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.327670][ T1094]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   62.327673][ T1094]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   62.327677][ T1094]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   62.327679][ T1094]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   62.327684][ T1094]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   62.327686][ T1094]  ____sys_sendmsg (net/socket.c:2713)
[   62.327689][ T1094]  ? copy_msghdr_from_user (net/socket.c:2650)
[   62.327691][ T1094]  ? sock_write_iter (net/socket.c:1269)
[   62.327692][ T1094]  ? move_addr_to_kernel (net/socket.c:258)
[   62.327700][ T1094]  ___sys_sendmsg (net/socket.c:2767)
[   62.327702][ T1094]  ? copy_msghdr_from_user (net/socket.c:2619)
[   62.327718][ T1094]  __sys_sendmsg (net/socket.c:2799)
[   62.327720][ T1094]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   62.327727][ T1094]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.327729][ T1094]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   62.327732][ T1094]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   62.327735][ T1094]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   62.327738][ T1094] RIP: 0033:0x7f69f9e2954e
[   62.327741][ T1094] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   62.327743][ T1094] RSP: 002b:00007ffcaebbf110 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   62.327746][ T1094] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f69f9e2954e
[   62.327747][ T1094] RDX: 0000000000000000 RSI: 00007ffcaebbf1c0 RDI: 0000000000000005
[   62.327748][ T1094] RBP: 00007ffcaebbf120 R08: 0000000000000000 R09: 0000000000000000
[   62.327749][ T1094] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a914319
[   62.327750][ T1094] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcaebbf880
| [   63.642067][ T1143] softirqs last disabled at (38534): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   63.642070][ T1143] Preemption disabled at:
| [   63.642070][ T1143] vprintk_emit (kernel/printk/printk.c:2471)
| [   63.642079][ T1143] Tainted: [W]=WARN
[   63.642080][ T1143] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   63.642082][ T1143] Call Trace:
[   63.642083][ T1143]  <TASK>
[   63.642085][ T1143]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   63.642090][ T1143]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   63.642091][ T1143]  __might_resched.cold (kernel/sched/core.c:9234)
[   63.642096][ T1143]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   63.642100][ T1143]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   63.642105][ T1143]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   63.642107][ T1143]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   63.642113][ T1143]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   63.642116][ T1143]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   63.642119][ T1143]  put_chars (drivers/char/virtio_console.c:1176)
[   63.642122][ T1143]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   63.642128][ T1143]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   63.642135][ T1143]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   63.642138][ T1143]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   63.642142][ T1143]  console_emit_next_record (kernel/printk/printk.c:3183)
[   63.642146][ T1143]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   63.642148][ T1143]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   63.642151][ T1143]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.642154][ T1143]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   63.642158][ T1143]  console_flush_one_record (kernel/printk/printk.c:3268)
[   63.642162][ T1143]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   63.642164][ T1143]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.642169][ T1143]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   63.642172][ T1143]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   63.642174][ T1143]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.642175][ T1143]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   63.642179][ T1143]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   63.642181][ T1143]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   63.642183][ T1143]  vprintk_emit (kernel/printk/printk.c:2479)
[   63.642187][ T1143]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   63.642188][ T1143]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   63.642190][ T1143]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.642192][ T1143]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.642196][ T1143]  _printk (kernel/printk/printk.c:2504)
[   63.642200][ T1143]  ? snapshot_read.cold (user.c:?)
[   63.642201][ T1143]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   63.642204][ T1143]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   63.642206][ T1143]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   63.642209][ T1143]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   63.642212][ T1143]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   63.642215][ T1143]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   63.642217][ T1143]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   63.642220][ T1143]  ? netdev_notice (net/core/dev.c:13194)
[   63.642223][ T1143]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.642225][ T1143]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   63.642228][ T1143]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   63.642231][ T1143]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   63.642233][ T1143]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   63.642236][ T1143]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   63.642240][ T1143]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   63.642247][ T1143]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   63.642253][ T1143]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   63.642256][ T1143]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   63.642260][ T1143]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   63.642261][ T1143]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   63.642263][ T1143]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   63.642266][ T1143]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   63.642268][ T1143]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   63.642270][ T1143]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   63.642272][ T1143]  ? kasan_save_stack (mm/kasan/common.c:58)
[   63.642274][ T1143]  ? kasan_save_stack (mm/kasan/common.c:57)
[   63.642275][ T1143]  ? kasan_save_track (mm/kasan/common.c:78)
[   63.642277][ T1143]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   63.642279][ T1143]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.642281][ T1143]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   63.642284][ T1143]  ? ___sys_sendmsg (net/socket.c:2758)
[   63.642288][ T1143]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   63.642290][ T1143]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   63.642292][ T1143]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.642294][ T1143]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   63.642296][ T1143]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.642297][ T1143]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.642298][ T1143]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   63.642300][ T1143]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   63.642303][ T1143]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   63.642305][ T1143]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   63.642308][ T1143]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   63.642309][ T1143]  ? nla_get_range_signed (lib/nlattr.c:270)
[   63.642314][ T1143]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.642316][ T1143]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   63.642321][ T1143]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   63.642326][ T1143]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   63.642328][ T1143]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.642333][ T1143]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   63.642334][ T1143]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.642336][ T1143]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   63.642342][ T1143]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   63.642346][ T1143]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   63.642348][ T1143]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   63.642351][ T1143]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   63.642352][ T1143]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.642357][ T1143]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   63.642359][ T1143]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.642362][ T1143]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   63.642365][ T1143]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   63.642368][ T1143]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   63.642374][ T1143]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   63.642376][ T1143]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   63.642381][ T1143]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   63.642385][ T1143]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   63.642387][ T1143]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.642391][ T1143]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   63.642395][ T1143]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   63.642399][ T1143]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   63.642400][ T1143]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   63.642406][ T1143]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   63.642408][ T1143]  ____sys_sendmsg (net/socket.c:2713)
[   63.642410][ T1143]  ? copy_msghdr_from_user (net/socket.c:2650)
[   63.642413][ T1143]  ? sock_write_iter (net/socket.c:1269)
[   63.642414][ T1143]  ? move_addr_to_kernel (net/socket.c:258)
[   63.642421][ T1143]  ___sys_sendmsg (net/socket.c:2767)
[   63.642424][ T1143]  ? copy_msghdr_from_user (net/socket.c:2619)
[   63.642440][ T1143]  __sys_sendmsg (net/socket.c:2799)
[   63.642442][ T1143]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   63.642449][ T1143]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.642452][ T1143]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   63.642455][ T1143]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   63.642457][ T1143]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   63.642459][ T1143] RIP: 0033:0x7fb41cda354e
[   63.642463][ T1143] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   63.642465][ T1143] RSP: 002b:00007ffc8d15b8a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   63.642468][ T1143] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fb41cda354e
[   63.642469][ T1143] RDX: 0000000000000000 RSI: 00007ffc8d15b950 RDI: 0000000000000005
[   63.642470][ T1143] RBP: 00007ffc8d15b8b0 R08: 0000000000000000 R09: 0000000000000000
[   63.642471][ T1143] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91431b
[   63.642472][ T1143] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc8d15c010
| [   64.928241][ T1192] softirqs last disabled at (38396): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   64.928247][ T1192] Preemption disabled at:
| [   64.928247][ T1192] vprintk_emit (kernel/printk/printk.c:2471)
| [   64.928255][ T1192] Tainted: [W]=WARN
[   64.928256][ T1192] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   64.928258][ T1192] Call Trace:
[   64.928260][ T1192]  <TASK>
[   64.928261][ T1192]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   64.928267][ T1192]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   64.928268][ T1192]  __might_resched.cold (kernel/sched/core.c:9234)
[   64.928272][ T1192]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   64.928276][ T1192]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   64.928281][ T1192]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   64.928282][ T1192]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   64.928289][ T1192]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   64.928291][ T1192]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   64.928295][ T1192]  put_chars (drivers/char/virtio_console.c:1176)
[   64.928297][ T1192]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   64.928303][ T1192]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   64.928311][ T1192]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   64.928314][ T1192]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.928318][ T1192]  console_emit_next_record (kernel/printk/printk.c:3183)
[   64.928322][ T1192]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   64.928323][ T1192]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   64.928327][ T1192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.928329][ T1192]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.928333][ T1192]  console_flush_one_record (kernel/printk/printk.c:3268)
[   64.928337][ T1192]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   64.928339][ T1192]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.928348][ T1192]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   64.928351][ T1192]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   64.928353][ T1192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.928355][ T1192]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   64.928358][ T1192]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   64.928360][ T1192]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   64.928363][ T1192]  vprintk_emit (kernel/printk/printk.c:2479)
[   64.928365][ T1192]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   64.928367][ T1192]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   64.928369][ T1192]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.928371][ T1192]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.928375][ T1192]  _printk (kernel/printk/printk.c:2504)
[   64.928379][ T1192]  ? snapshot_read.cold (user.c:?)
[   64.928380][ T1192]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   64.928383][ T1192]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   64.928386][ T1192]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   64.928388][ T1192]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   64.928391][ T1192]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   64.928394][ T1192]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   64.928396][ T1192]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   64.928399][ T1192]  ? netdev_notice (net/core/dev.c:13194)
[   64.928401][ T1192]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.928404][ T1192]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   64.928407][ T1192]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   64.928410][ T1192]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   64.928412][ T1192]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   64.928415][ T1192]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   64.928418][ T1192]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   64.928423][ T1192]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   64.928428][ T1192]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   64.928431][ T1192]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   64.928435][ T1192]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   64.928436][ T1192]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   64.928438][ T1192]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   64.928441][ T1192]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   64.928443][ T1192]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   64.928445][ T1192]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   64.928447][ T1192]  ? kasan_save_stack (mm/kasan/common.c:58)
[   64.928449][ T1192]  ? kasan_save_stack (mm/kasan/common.c:57)
[   64.928450][ T1192]  ? kasan_save_track (mm/kasan/common.c:78)
[   64.928451][ T1192]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   64.928454][ T1192]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.928456][ T1192]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   64.928459][ T1192]  ? ___sys_sendmsg (net/socket.c:2758)
[   64.928462][ T1192]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   64.928464][ T1192]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   64.928467][ T1192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.928469][ T1192]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.928470][ T1192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.928471][ T1192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.928473][ T1192]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   64.928475][ T1192]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   64.928478][ T1192]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   64.928480][ T1192]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   64.928483][ T1192]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   64.928484][ T1192]  ? nla_get_range_signed (lib/nlattr.c:270)
[   64.928489][ T1192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.928491][ T1192]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   64.928496][ T1192]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   64.928501][ T1192]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   64.928503][ T1192]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.928507][ T1192]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   64.928509][ T1192]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.928511][ T1192]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   64.928513][ T1192]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   64.928516][ T1192]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   64.928518][ T1192]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   64.928521][ T1192]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   64.928523][ T1192]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.928527][ T1192]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   64.928529][ T1192]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.928532][ T1192]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   64.928535][ T1192]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   64.928538][ T1192]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   64.928544][ T1192]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   64.928546][ T1192]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   64.928550][ T1192]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   64.928554][ T1192]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   64.928557][ T1192]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.928561][ T1192]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   64.928565][ T1192]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   64.928568][ T1192]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   64.928570][ T1192]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   64.928575][ T1192]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   64.928578][ T1192]  ____sys_sendmsg (net/socket.c:2713)
[   64.928580][ T1192]  ? copy_msghdr_from_user (net/socket.c:2650)
[   64.928582][ T1192]  ? sock_write_iter (net/socket.c:1269)
[   64.928584][ T1192]  ? move_addr_to_kernel (net/socket.c:258)
[   64.928591][ T1192]  ___sys_sendmsg (net/socket.c:2767)
[   64.928593][ T1192]  ? copy_msghdr_from_user (net/socket.c:2619)
[   64.928609][ T1192]  __sys_sendmsg (net/socket.c:2799)
[   64.928611][ T1192]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   64.928617][ T1192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.928620][ T1192]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   64.928623][ T1192]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   64.928626][ T1192]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   64.928628][ T1192] RIP: 0033:0x7fbd7786754e
[   64.928632][ T1192] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   64.928633][ T1192] RSP: 002b:00007fffe1d29a90 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   64.928636][ T1192] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fbd7786754e
[   64.928637][ T1192] RDX: 0000000000000000 RSI: 00007fffe1d29b40 RDI: 0000000000000005
[   64.928638][ T1192] RBP: 00007fffe1d29aa0 R08: 0000000000000000 R09: 0000000000000000
[   64.928639][ T1192] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91431c
[   64.928640][ T1192] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffe1d2a200
| [   66.027500][ T1241] softirqs last disabled at (38808): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   66.027502][ T1241] Preemption disabled at:
| [   66.027503][ T1241] vprintk_emit (kernel/printk/printk.c:2471)
| [   66.027511][ T1241] Tainted: [W]=WARN
[   66.027512][ T1241] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   66.027513][ T1241] Call Trace:
[   66.027515][ T1241]  <TASK>
[   66.027516][ T1241]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   66.027522][ T1241]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   66.027523][ T1241]  __might_resched.cold (kernel/sched/core.c:9234)
[   66.027528][ T1241]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   66.027532][ T1241]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   66.027536][ T1241]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   66.027538][ T1241]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   66.027545][ T1241]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   66.027548][ T1241]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   66.027551][ T1241]  put_chars (drivers/char/virtio_console.c:1176)
[   66.027554][ T1241]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   66.027560][ T1241]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   66.027567][ T1241]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   66.027570][ T1241]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.027575][ T1241]  console_emit_next_record (kernel/printk/printk.c:3183)
[   66.027579][ T1241]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   66.027581][ T1241]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   66.027584][ T1241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.027586][ T1241]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.027590][ T1241]  console_flush_one_record (kernel/printk/printk.c:3268)
[   66.027594][ T1241]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   66.027596][ T1241]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.027601][ T1241]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   66.027604][ T1241]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   66.027606][ T1241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.027608][ T1241]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   66.027611][ T1241]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   66.027613][ T1241]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   66.027615][ T1241]  vprintk_emit (kernel/printk/printk.c:2479)
[   66.027619][ T1241]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   66.027620][ T1241]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   66.027622][ T1241]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.027624][ T1241]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.027628][ T1241]  _printk (kernel/printk/printk.c:2504)
[   66.027632][ T1241]  ? snapshot_read.cold (user.c:?)
[   66.027633][ T1241]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   66.027636][ T1241]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   66.027638][ T1241]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   66.027641][ T1241]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   66.027644][ T1241]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   66.027647][ T1241]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   66.027649][ T1241]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   66.027652][ T1241]  ? netdev_notice (net/core/dev.c:13194)
[   66.027654][ T1241]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.027657][ T1241]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   66.027659][ T1241]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   66.027663][ T1241]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   66.027665][ T1241]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   66.027668][ T1241]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   66.027671][ T1241]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   66.027675][ T1241]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   66.027681][ T1241]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   66.027684][ T1241]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   66.027687][ T1241]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   66.027689][ T1241]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   66.027691][ T1241]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   66.027694][ T1241]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   66.027696][ T1241]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   66.027698][ T1241]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   66.027700][ T1241]  ? kasan_save_stack (mm/kasan/common.c:58)
[   66.027702][ T1241]  ? kasan_save_stack (mm/kasan/common.c:57)
[   66.027703][ T1241]  ? kasan_save_track (mm/kasan/common.c:78)
[   66.027704][ T1241]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   66.027706][ T1241]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.027708][ T1241]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   66.027711][ T1241]  ? ___sys_sendmsg (net/socket.c:2758)
[   66.027715][ T1241]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   66.027717][ T1241]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   66.027719][ T1241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.027721][ T1241]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.027722][ T1241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.027723][ T1241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.027725][ T1241]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   66.027727][ T1241]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   66.027730][ T1241]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   66.027732][ T1241]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   66.027735][ T1241]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   66.027736][ T1241]  ? nla_get_range_signed (lib/nlattr.c:270)
[   66.027740][ T1241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.027743][ T1241]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   66.027748][ T1241]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   66.027753][ T1241]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   66.027755][ T1241]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.027759][ T1241]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   66.027761][ T1241]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.027763][ T1241]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   66.027764][ T1241]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   66.027768][ T1241]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   66.027770][ T1241]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   66.027773][ T1241]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   66.027774][ T1241]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.027778][ T1241]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   66.027780][ T1241]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.027784][ T1241]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   66.027786][ T1241]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   66.027789][ T1241]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   66.027795][ T1241]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   66.027798][ T1241]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   66.027802][ T1241]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   66.027806][ T1241]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   66.027808][ T1241]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.027813][ T1241]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   66.027816][ T1241]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   66.027820][ T1241]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   66.027822][ T1241]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   66.027827][ T1241]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   66.027829][ T1241]  ____sys_sendmsg (net/socket.c:2713)
[   66.027832][ T1241]  ? copy_msghdr_from_user (net/socket.c:2650)
[   66.027834][ T1241]  ? sock_write_iter (net/socket.c:1269)
[   66.027835][ T1241]  ? move_addr_to_kernel (net/socket.c:258)
[   66.027843][ T1241]  ___sys_sendmsg (net/socket.c:2767)
[   66.027845][ T1241]  ? copy_msghdr_from_user (net/socket.c:2619)
[   66.027861][ T1241]  __sys_sendmsg (net/socket.c:2799)
[   66.027863][ T1241]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   66.027869][ T1241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.027872][ T1241]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   66.027875][ T1241]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   66.027878][ T1241]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   66.027880][ T1241] RIP: 0033:0x7f531003554e
[   66.027883][ T1241] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   66.027885][ T1241] RSP: 002b:00007ffc070f2b80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   66.027888][ T1241] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f531003554e
[   66.027889][ T1241] RDX: 0000000000000000 RSI: 00007ffc070f2c30 RDI: 0000000000000005
[   66.027890][ T1241] RBP: 00007ffc070f2b90 R08: 0000000000000000 R09: 0000000000000000
[   66.027891][ T1241] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91431d


Finger prints:
br_device_event:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
netlink_release:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print