====================================== | [ 11.488405][ T278] softirqs last disabled at (30231): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 11.488407][ T278] Preemption disabled at: | [ 11.488408][ T278] 0x0 | [ 11.488418][ T278] Tainted: [W]=WARN [ 11.488419][ T278] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.488422][ T278] Call Trace: [ 11.488424][ T278] [ 11.488425][ T278] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.488431][ T278] __might_resched.cold (kernel/sched/core.c:9234) [ 11.488436][ T278] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.488440][ T278] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.488444][ T278] __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)) [ 11.488447][ T278] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.488454][ T278] ? 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) [ 11.488456][ T278] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.488460][ T278] put_chars (drivers/char/virtio_console.c:1176) [ 11.488462][ T278] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.488464][ T278] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.488467][ T278] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.488473][ T278] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.488480][ T278] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.488483][ T278] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.488485][ T278] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.488489][ T278] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.488493][ T278] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.488494][ T278] ? 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)) [ 11.488498][ T278] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.488499][ T278] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.488503][ T278] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.488507][ T278] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.488509][ T278] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.488514][ T278] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.488517][ T278] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.488519][ T278] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.488521][ T278] ? 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) [ 11.488524][ T278] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.488526][ T278] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.488529][ T278] vprintk_emit (kernel/printk/printk.c:2479) [ 11.488532][ T278] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.488535][ T278] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.488538][ T278] _printk (kernel/printk/printk.c:2504) [ 11.488542][ T278] ? snapshot_read.cold (user.c:?) [ 11.488544][ T278] ? 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) [ 11.488547][ T278] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 11.488551][ T278] ? 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) [ 11.488554][ T278] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 11.488558][ T278] ? exit_notify (kernel/exit.c:780) [ 11.488559][ T278] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.488562][ T278] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.488565][ T278] do_group_exit (kernel/exit.c:1151) [ 11.488568][ T278] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 11.488570][ T278] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 11.488572][ T278] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.488576][ T278] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.488579][ T278] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.488581][ T278] RIP: 0033:0x7fda4d8a61b8 [ 11.488583][ T278] Code: Unable to access opcode bytes at 0x7fda4d8a618e. Code starting with the faulting instruction =========================================== [ 11.488584][ T278] RSP: 002b:00007ffea006b528 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.488586][ T278] RAX: ffffffffffffffda RBX: 00007fda4d9d6f88 RCX: 00007fda4d8a61b8 [ 11.488588][ T278] RDX: 00007fda4d5f0fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 11.488588][ T278] RBP: 00007ffea006b580 R08: 0000000000000000 R09: 0000000000000050 [ 11.488589][ T278] R10: 00007ffea006b340 R11: 0000000000000246 R12: 0000000000000001 [ 11.488590][ T278] R13: 0000000000000000 R14: 00007fda4d9d5680 R15: 00007fda4d9d6fa0 | [ 15.574917][ T450] softirqs last disabled at (24019): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 15.574919][ T450] Preemption disabled at: | [ 15.574920][ T450] 0x0 | [ 15.574930][ T450] Tainted: [W]=WARN [ 15.574931][ T450] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.574932][ T450] Call Trace: [ 15.574934][ T450] [ 15.574936][ T450] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 15.574942][ T450] __might_resched.cold (kernel/sched/core.c:9234) [ 15.574947][ T450] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 15.574951][ T450] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 15.574955][ T450] __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)) [ 15.574957][ T450] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.574964][ T450] ? 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) [ 15.574967][ T450] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.574970][ T450] put_chars (drivers/char/virtio_console.c:1176) [ 15.574973][ T450] ? __send_to_port (drivers/char/virtio_console.c:654) [ 15.574974][ T450] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 15.574978][ T450] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 15.574983][ T450] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 15.574990][ T450] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 15.574993][ T450] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.574995][ T450] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.574999][ T450] console_emit_next_record (kernel/printk/printk.c:3183) [ 15.575003][ T450] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 15.575005][ T450] ? 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)) [ 15.575008][ T450] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.575009][ T450] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.575013][ T450] console_flush_one_record (kernel/printk/printk.c:3268) [ 15.575018][ T450] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 15.575019][ T450] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.575025][ T450] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 15.575028][ T450] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 15.575029][ T450] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.575031][ T450] ? 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) [ 15.575035][ T450] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 15.575036][ T450] ? vprintk_emit (kernel/printk/printk.c:2478) [ 15.575039][ T450] vprintk_emit (kernel/printk/printk.c:2479) [ 15.575042][ T450] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 15.575045][ T450] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.575049][ T450] _printk (kernel/printk/printk.c:2504) [ 15.575052][ T450] ? snapshot_read.cold (user.c:?) [ 15.575055][ T450] ? 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) [ 15.575058][ T450] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 15.575061][ T450] ? 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) [ 15.575064][ T450] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 15.575068][ T450] ? exit_notify (kernel/exit.c:780) [ 15.575069][ T450] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 15.575072][ T450] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.575075][ T450] do_group_exit (kernel/exit.c:1151) [ 15.575079][ T450] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 15.575081][ T450] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 15.575083][ T450] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 15.575087][ T450] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 15.575090][ T450] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 15.575092][ T450] RIP: 0033:0x7f7cb0ef81b8 [ 15.575094][ T450] Code: Unable to access opcode bytes at 0x7f7cb0ef818e. Code starting with the faulting instruction =========================================== [ 15.575095][ T450] RSP: 002b:00007ffc9b834a98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 15.575098][ T450] RAX: ffffffffffffffda RBX: 00007f7cb1028f88 RCX: 00007f7cb0ef81b8 [ 15.575099][ T450] RDX: 00007f7cb0c41b48 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 15.575100][ T450] RBP: 00007ffc9b834af0 R08: 0000000000000000 R09: 0000000000008010 [ 15.575101][ T450] R10: 00007ffc9b8348b0 R11: 0000000000000246 R12: 0000000000000001 [ 15.575102][ T450] R13: 0000000000000000 R14: 00007f7cb1027680 R15: 00007f7cb1028fa0 | [ 31.159044][ T1034] softirqs last disabled at (23985): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 31.159046][ T1034] Preemption disabled at: | [ 31.159047][ T1034] 0x0 | [ 31.159057][ T1034] Tainted: [W]=WARN [ 31.159058][ T1034] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 31.159060][ T1034] Call Trace: [ 31.159061][ T1034] [ 31.159063][ T1034] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 31.159069][ T1034] __might_resched.cold (kernel/sched/core.c:9234) [ 31.159073][ T1034] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 31.159078][ T1034] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 31.159083][ T1034] __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)) [ 31.159085][ T1034] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 31.159091][ T1034] ? 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) [ 31.159094][ T1034] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 31.159098][ T1034] put_chars (drivers/char/virtio_console.c:1176) [ 31.159100][ T1034] ? __send_to_port (drivers/char/virtio_console.c:654) [ 31.159101][ T1034] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 31.159105][ T1034] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 31.159110][ T1034] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 31.159118][ T1034] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 31.159120][ T1034] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.159122][ T1034] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 31.159127][ T1034] console_emit_next_record (kernel/printk/printk.c:3183) [ 31.159130][ T1034] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 31.159132][ T1034] ? 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)) [ 31.159136][ T1034] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.159137][ T1034] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 31.159141][ T1034] console_flush_one_record (kernel/printk/printk.c:3268) [ 31.159145][ T1034] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 31.159147][ T1034] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.159152][ T1034] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 31.159155][ T1034] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 31.159157][ T1034] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.159159][ T1034] ? 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) [ 31.159163][ T1034] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 31.159165][ T1034] ? vprintk_emit (kernel/printk/printk.c:2478) [ 31.159167][ T1034] vprintk_emit (kernel/printk/printk.c:2479) [ 31.159170][ T1034] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 31.159173][ T1034] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.159177][ T1034] _printk (kernel/printk/printk.c:2504) [ 31.159180][ T1034] ? snapshot_read.cold (user.c:?) [ 31.159183][ T1034] ? 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) [ 31.159186][ T1034] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 31.159189][ T1034] ? 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) [ 31.159192][ T1034] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 31.159196][ T1034] ? exit_notify (kernel/exit.c:780) [ 31.159197][ T1034] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 31.159200][ T1034] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.159203][ T1034] do_group_exit (kernel/exit.c:1151) [ 31.159206][ T1034] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 31.159208][ T1034] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 31.159210][ T1034] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 31.159214][ T1034] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 31.159217][ T1034] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 31.159220][ T1034] RIP: 0033:0x7f42e4de61b8 [ 31.159222][ T1034] Code: Unable to access opcode bytes at 0x7f42e4de618e. Code starting with the faulting instruction =========================================== [ 31.159223][ T1034] RSP: 002b:00007fffcf577678 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 31.159226][ T1034] RAX: ffffffffffffffda RBX: 00007f42e4f16f88 RCX: 00007f42e4de61b8 [ 31.159227][ T1034] RDX: 00007f42e4b2fb48 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 31.159228][ T1034] RBP: 00007fffcf5776d0 R08: 0000000000000000 R09: 0000000000008010 [ 31.159229][ T1034] R10: 00007fffcf577490 R11: 0000000000000246 R12: 0000000000000001 [ 31.159230][ T1034] R13: 0000000000000000 R14: 00007f42e4f15680 R15: 00007f42e4f16fa0 | [ 39.394513][ T1380] softirqs last disabled at (21582): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 39.394516][ T1380] Preemption disabled at: | [ 39.394516][ T1380] vprintk_emit (kernel/printk/printk.c:2471) | [ 39.394525][ T1380] Tainted: [W]=WARN [ 39.394526][ T1380] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 39.394528][ T1380] Call Trace: [ 39.394530][ T1380] [ 39.394531][ T1380] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 39.394538][ T1380] ? vprintk_emit (kernel/printk/printk.c:2471) [ 39.394539][ T1380] __might_resched.cold (kernel/sched/core.c:9234) [ 39.394544][ T1380] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 39.394548][ T1380] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 39.394553][ T1380] __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)) [ 39.394555][ T1380] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 39.394562][ T1380] ? 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) [ 39.394565][ T1380] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 39.394568][ T1380] put_chars (drivers/char/virtio_console.c:1176) [ 39.394571][ T1380] ? __send_to_port (drivers/char/virtio_console.c:654) [ 39.394574][ T1380] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 39.394579][ T1380] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 39.394587][ T1380] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 39.394590][ T1380] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.394592][ T1380] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 39.394597][ T1380] console_emit_next_record (kernel/printk/printk.c:3183) [ 39.394600][ T1380] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 39.394602][ T1380] ? 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)) [ 39.394606][ T1380] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.394607][ T1380] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 39.394611][ T1380] console_flush_one_record (kernel/printk/printk.c:3268) [ 39.394616][ T1380] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 39.394618][ T1380] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 39.394623][ T1380] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 39.394626][ T1380] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 39.394628][ T1380] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.394630][ T1380] ? 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) [ 39.394633][ T1380] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 39.394635][ T1380] ? vprintk_emit (kernel/printk/printk.c:2478) [ 39.394638][ T1380] vprintk_emit (kernel/printk/printk.c:2479) [ 39.394641][ T1380] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 39.394643][ T1380] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 39.394645][ T1380] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 39.394649][ T1380] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 39.394653][ T1380] _printk (kernel/printk/printk.c:2504) [ 39.394656][ T1380] ? snapshot_read.cold (user.c:?) [ 39.394660][ T1380] ? br_multicast_flood (??:?) [ 39.394663][ T1380] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 39.394665][ T1380] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 39.394666][ T1380] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 39.394670][ T1380] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 39.394676][ T1380] br_init_port (net/bridge/br_stp_if.c:39) [ 39.394678][ T1380] new_nbp (net/bridge/br_if.c:449) [ 39.394682][ T1380] br_add_if (net/bridge/br_if.c:592) [ 39.394684][ T1380] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 39.394688][ T1380] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 39.394694][ T1380] do_set_master (net/core/rtnetlink.c:3071) [ 39.394698][ T1380] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 39.394701][ T1380] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 39.394704][ T1380] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 39.394706][ T1380] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 39.394709][ T1380] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 39.394712][ T1380] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 39.394715][ T1380] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 39.394717][ T1380] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 39.394719][ T1380] ? kasan_save_stack (mm/kasan/common.c:58) [ 39.394721][ T1380] ? kasan_save_stack (mm/kasan/common.c:57) [ 39.394723][ T1380] ? kasan_save_track (mm/kasan/common.c:78) [ 39.394724][ T1380] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 39.394726][ T1380] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 39.394728][ T1380] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 39.394731][ T1380] ? ___sys_sendmsg (net/socket.c:2758) [ 39.394735][ T1380] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 39.394737][ T1380] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 39.394740][ T1380] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.394742][ T1380] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 39.394743][ T1380] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.394744][ T1380] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.394746][ T1380] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 39.394748][ T1380] ? __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) [ 39.394750][ T1380] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 39.394752][ T1380] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 39.394755][ T1380] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 39.394756][ T1380] ? nla_get_range_signed (lib/nlattr.c:270) [ 39.394762][ T1380] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.394764][ T1380] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 39.394770][ T1380] rtnl_newlink (net/core/rtnetlink.c:4215) [ 39.394775][ T1380] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 39.394777][ T1380] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 39.394782][ T1380] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 39.394784][ T1380] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 39.394786][ T1380] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 39.394788][ T1380] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 39.394792][ T1380] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 39.394794][ T1380] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 39.394797][ T1380] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 39.394798][ T1380] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 39.394803][ T1380] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 39.394805][ T1380] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 39.394809][ T1380] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 39.394812][ T1380] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 39.394815][ T1380] ? netlink_ack (./include/linux/skbuff.h:2718) [ 39.394821][ T1380] ? 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)) [ 39.394824][ T1380] ? 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)) [ 39.394828][ T1380] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 39.394832][ T1380] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 39.394835][ T1380] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 39.394839][ T1380] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 39.394843][ T1380] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 39.394847][ T1380] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 39.394849][ T1380] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 39.394855][ T1380] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 39.394858][ T1380] ____sys_sendmsg (net/socket.c:2713) [ 39.394860][ T1380] ? copy_msghdr_from_user (net/socket.c:2650) [ 39.394862][ T1380] ? sock_write_iter (net/socket.c:1269) [ 39.394864][ T1380] ? move_addr_to_kernel (net/socket.c:258) [ 39.394871][ T1380] ___sys_sendmsg (net/socket.c:2767) [ 39.394874][ T1380] ? copy_msghdr_from_user (net/socket.c:2619) [ 39.394896][ T1380] __sys_sendmsg (net/socket.c:2799) [ 39.394899][ T1380] ? __sys_sendmsg_sock (net/socket.c:2780) [ 39.394905][ T1380] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.394908][ T1380] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 39.394911][ T1380] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 39.394914][ T1380] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 39.394917][ T1380] RIP: 0033:0x7efdef90d54e [ 39.394921][ T1380] 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 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 [ 39.394922][ T1380] RSP: 002b:00007fff16a5c5f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 39.394925][ T1380] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007efdef90d54e [ 39.394926][ T1380] RDX: 0000000000000000 RSI: 00007fff16a5c6a0 RDI: 0000000000000005 [ 39.394927][ T1380] RBP: 00007fff16a5c600 R08: 0000000000000000 R09: 0000000000000000 [ 39.394928][ T1380] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e06a Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print __alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars