====================================== | [ 9.238856][ T198] softirqs last disabled at (18837): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.238858][ T198] Preemption disabled at: | [ 9.238859][ T198] 0x0 | [ 9.238869][ T198] Tainted: [W]=WARN [ 9.238870][ T198] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.238871][ T198] Call Trace: [ 9.238873][ T198] [ 9.238874][ T198] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.238881][ T198] __might_resched.cold (kernel/sched/core.c:9234) [ 9.238886][ T198] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.238890][ T198] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.238894][ T198] __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)) [ 9.238896][ T198] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.238903][ T198] ? 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) [ 9.238906][ T198] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.238909][ T198] put_chars (drivers/char/virtio_console.c:1176) [ 9.238911][ T198] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.238913][ T198] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.238916][ T198] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.238921][ T198] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.238929][ T198] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.238931][ T198] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.238933][ T198] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.238937][ T198] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.238941][ T198] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.238943][ T198] ? 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)) [ 9.238946][ T198] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.238948][ T198] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.238952][ T198] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.238956][ T198] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.238957][ T198] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.238963][ T198] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.238965][ T198] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.238967][ T198] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.238969][ T198] ? 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) [ 9.238973][ T198] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.238974][ T198] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.238977][ T198] vprintk_emit (kernel/printk/printk.c:2479) [ 9.238980][ T198] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.238983][ T198] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.238986][ T198] _printk (kernel/printk/printk.c:2504) [ 9.238990][ T198] ? snapshot_read.cold (user.c:?) [ 9.238993][ T198] ? 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) [ 9.238996][ T198] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.238999][ T198] ? 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) [ 9.239002][ T198] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.239006][ T198] ? exit_notify (kernel/exit.c:780) [ 9.239007][ T198] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.239010][ T198] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.239013][ T198] do_group_exit (kernel/exit.c:1151) [ 9.239016][ T198] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.239017][ T198] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.239020][ T198] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.239024][ T198] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.239027][ T198] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.239029][ T198] RIP: 0033:0x7f37903bc1b8 [ 9.239031][ T198] Code: Unable to access opcode bytes at 0x7f37903bc18e. Code starting with the faulting instruction =========================================== [ 9.239032][ T198] RSP: 002b:00007fffce24bc28 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.239034][ T198] RAX: ffffffffffffffda RBX: 00007f37904ecf88 RCX: 00007f37903bc1b8 [ 9.239035][ T198] RDX: 00007f3790106fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.239036][ T198] RBP: 00007fffce24bc80 R08: 0000000000000000 R09: 0000000000000050 [ 9.239037][ T198] R10: 00007fffce24ba40 R11: 0000000000000246 R12: 0000000000000001 [ 9.239038][ T198] R13: 0000000000000000 R14: 00007f37904eb680 R15: 00007f37904ecfa0 | [ 26.404805][ T607] softirqs last disabled at (21969): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 26.404808][ T607] Preemption disabled at: | [ 26.404808][ T607] vprintk_emit (kernel/printk/printk.c:2471) | [ 26.404816][ T607] Tainted: [W]=WARN [ 26.404817][ T607] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 26.404819][ T607] Call Trace: [ 26.404820][ T607] [ 26.404822][ T607] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 26.404828][ T607] ? vprintk_emit (kernel/printk/printk.c:2471) [ 26.404829][ T607] __might_resched.cold (kernel/sched/core.c:9234) [ 26.404834][ T607] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 26.404838][ T607] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 26.404842][ T607] __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)) [ 26.404844][ T607] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 26.404850][ T607] ? 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) [ 26.404853][ T607] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 26.404856][ T607] put_chars (drivers/char/virtio_console.c:1176) [ 26.404859][ T607] ? __send_to_port (drivers/char/virtio_console.c:654) [ 26.404862][ T607] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 26.404867][ T607] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 26.404874][ T607] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 26.404876][ T607] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.404879][ T607] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.404883][ T607] console_emit_next_record (kernel/printk/printk.c:3183) [ 26.404887][ T607] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 26.404889][ T607] ? 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)) [ 26.404892][ T607] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.404893][ T607] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.404897][ T607] console_flush_one_record (kernel/printk/printk.c:3268) [ 26.404901][ T607] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 26.404903][ T607] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.404908][ T607] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 26.404911][ T607] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 26.404913][ T607] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.404914][ T607] ? 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) [ 26.404918][ T607] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 26.404920][ T607] ? vprintk_emit (kernel/printk/printk.c:2478) [ 26.404922][ T607] vprintk_emit (kernel/printk/printk.c:2479) [ 26.404925][ T607] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 26.404927][ T607] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 26.404929][ T607] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 26.404933][ T607] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 26.404936][ T607] _printk (kernel/printk/printk.c:2504) [ 26.404940][ T607] ? snapshot_read.cold (user.c:?) [ 26.404943][ T607] ? br_multicast_flood (??:?) [ 26.404946][ T607] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 26.404948][ T607] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 26.404949][ T607] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 26.404953][ T607] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 26.404957][ T607] br_init_port (net/bridge/br_stp_if.c:39) [ 26.404959][ T607] new_nbp (net/bridge/br_if.c:449) [ 26.404963][ T607] br_add_if (net/bridge/br_if.c:592) [ 26.404965][ T607] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 26.404969][ T607] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 26.404974][ T607] do_set_master (net/core/rtnetlink.c:3071) [ 26.404978][ T607] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 26.404981][ T607] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 26.404985][ T607] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 26.404986][ T607] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 26.404989][ T607] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 26.404992][ T607] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 26.404994][ T607] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 26.404996][ T607] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 26.404998][ T607] ? kasan_save_stack (mm/kasan/common.c:58) [ 26.405001][ T607] ? kasan_save_stack (mm/kasan/common.c:57) [ 26.405002][ T607] ? kasan_save_track (mm/kasan/common.c:78) [ 26.405003][ T607] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 26.405005][ T607] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.405007][ T607] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 26.405011][ T607] ? ___sys_sendmsg (net/socket.c:2758) [ 26.405015][ T607] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.405017][ T607] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 26.405019][ T607] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.405021][ T607] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.405023][ T607] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.405024][ T607] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.405025][ T607] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 26.405027][ T607] ? __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) [ 26.405029][ T607] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 26.405031][ T607] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 26.405034][ T607] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 26.405035][ T607] ? nla_get_range_signed (lib/nlattr.c:270) [ 26.405040][ T607] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.405042][ T607] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 26.405047][ T607] rtnl_newlink (net/core/rtnetlink.c:4215) [ 26.405052][ T607] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.405054][ T607] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.405058][ T607] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.405060][ T607] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.405062][ T607] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.405064][ T607] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 26.405068][ T607] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.405070][ T607] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 26.405073][ T607] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 26.405074][ T607] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.405078][ T607] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.405080][ T607] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.405083][ T607] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 26.405087][ T607] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 26.405089][ T607] ? netlink_ack (./include/linux/skbuff.h:2718) [ 26.405096][ T607] ? 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)) [ 26.405098][ T607] ? 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)) [ 26.405102][ T607] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 26.405106][ T607] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 26.405108][ T607] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.405112][ T607] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 26.405116][ T607] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 26.405120][ T607] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 26.405121][ T607] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 26.405127][ T607] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 26.405130][ T607] ____sys_sendmsg (net/socket.c:2713) [ 26.405132][ T607] ? copy_msghdr_from_user (net/socket.c:2650) [ 26.405134][ T607] ? sock_write_iter (net/socket.c:1269) [ 26.405136][ T607] ? move_addr_to_kernel (net/socket.c:258) [ 26.405143][ T607] ___sys_sendmsg (net/socket.c:2767) [ 26.405145][ T607] ? copy_msghdr_from_user (net/socket.c:2619) [ 26.405161][ T607] __sys_sendmsg (net/socket.c:2799) [ 26.405164][ T607] ? __sys_sendmsg_sock (net/socket.c:2780) [ 26.405170][ T607] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.405173][ T607] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 26.405176][ T607] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 26.405179][ T607] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 26.405181][ T607] RIP: 0033:0x7f43bfed654e [ 26.405185][ T607] 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 [ 26.405187][ T607] RSP: 002b:00007ffdb1046610 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 26.405189][ T607] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f43bfed654e [ 26.405191][ T607] RDX: 0000000000000000 RSI: 00007ffdb10466c0 RDI: 0000000000000005 [ 26.405192][ T607] RBP: 00007ffdb1046620 R08: 0000000000000000 R09: 0000000000000000 [ 26.405192][ T607] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c2f6 [ 26.405193][ T607] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdb1046d90 | [ 28.983379][ T626] softirqs last disabled at (1358760): fpu__clear_user_states (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/core.c:835 (discriminator 2)) | [ 28.983382][ T626] Preemption disabled at: | [ 28.983383][ T626] 0x0 | [ 28.983394][ T626] Tainted: [W]=WARN [ 28.983394][ T626] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 28.983402][ T626] Call Trace: [ 28.983404][ T626] [ 28.983406][ T626] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 28.983413][ T626] __might_resched.cold (kernel/sched/core.c:9234) [ 28.983418][ T626] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 28.983422][ T626] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 28.983428][ T626] __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)) [ 28.983430][ T626] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 28.983438][ T626] ? 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) [ 28.983440][ T626] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 28.983445][ T626] put_chars (drivers/char/virtio_console.c:1176) [ 28.983447][ T626] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 28.983450][ T626] ? __send_to_port (drivers/char/virtio_console.c:654) [ 28.983453][ T626] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 28.983455][ T626] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 28.983458][ T626] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 28.983462][ T626] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 28.983467][ T626] ? mark_usage (kernel/locking/lockdep.c:4690) [ 28.983469][ T626] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.983471][ T626] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.983475][ T626] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 28.983478][ T626] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 28.983482][ T626] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.983484][ T626] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.983489][ T626] console_emit_next_record (kernel/printk/printk.c:3183) [ 28.983493][ T626] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 28.983495][ T626] ? 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)) [ 28.983499][ T626] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.983501][ T626] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.983505][ T626] console_flush_one_record (kernel/printk/printk.c:3268) [ 28.983510][ T626] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 28.983512][ T626] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.983517][ T626] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 28.983520][ T626] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 28.983522][ T626] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.983524][ T626] ? 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) [ 28.983528][ T626] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 28.983530][ T626] ? vprintk_emit (kernel/printk/printk.c:2478) [ 28.983533][ T626] vprintk_emit (kernel/printk/printk.c:2479) [ 28.983536][ T626] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 28.983537][ T626] ? 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) [ 28.983540][ T626] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.983545][ T626] _printk (kernel/printk/printk.c:2504) [ 28.983548][ T626] ? snapshot_read.cold (user.c:?) [ 28.983552][ T626] ? 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) [ 28.983555][ T626] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 28.983559][ T626] ? 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) [ 28.983562][ T626] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 28.983566][ T626] ? exit_notify (kernel/exit.c:780) [ 28.983572][ T626] __x64_sys_exit (kernel/exit.c:1118 kernel/exit.c:1116 kernel/exit.c:1116) [ 28.983574][ T626] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:61) [ 28.983577][ T626] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 28.983581][ T626] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 28.983584][ T626] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 28.983586][ T626] RIP: 0033:0x7f6bbe521c49 [ 28.983588][ T626] Code: Unable to access opcode bytes at 0x7f6bbe521c1f. Code starting with the faulting instruction =========================================== [ 28.983589][ T626] RSP: 002b:00007f6bbdce0e60 EFLAGS: 00000246 ORIG_RAX: 000000000000003c [ 28.983592][ T626] RAX: ffffffffffffffda RBX: 00007f6bbdce16c0 RCX: 00007f6bbe521c49 [ 28.983593][ T626] RDX: 0000000000000000 RSI: 0000000000801000 RDI: 0000000000000000 [ 28.983594][ T626] RBP: 00007f6bbdce0f70 R08: 0000000000000001 R09: 00007f6bbdce16c0 [ 28.983595][ T626] R10: 0000000000000008 R11: 0000000000000246 R12: 00007f6bbd4e1000 [ 28.983596][ T626] R13: 00007ffd5a183a20 R14: 0000000000000002 R15: 00007ffd5a183b27 | [ 46.167271][ T1044] softirqs last disabled at (20558): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 46.167273][ T1044] Preemption disabled at: | [ 46.167274][ T1044] vprintk_emit (kernel/printk/printk.c:2471) | [ 46.167282][ T1044] Tainted: [W]=WARN [ 46.167283][ T1044] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 46.167285][ T1044] Call Trace: [ 46.167286][ T1044] [ 46.167288][ T1044] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 46.167293][ T1044] ? vprintk_emit (kernel/printk/printk.c:2471) [ 46.167295][ T1044] __might_resched.cold (kernel/sched/core.c:9234) [ 46.167299][ T1044] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 46.167303][ T1044] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 46.167308][ T1044] __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)) [ 46.167309][ T1044] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 46.167316][ T1044] ? 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) [ 46.167319][ T1044] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 46.167322][ T1044] put_chars (drivers/char/virtio_console.c:1176) [ 46.167325][ T1044] ? __send_to_port (drivers/char/virtio_console.c:654) [ 46.167326][ T1044] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 46.167330][ T1044] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 46.167335][ T1044] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 46.167342][ T1044] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 46.167345][ T1044] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 46.167347][ T1044] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 46.167351][ T1044] console_emit_next_record (kernel/printk/printk.c:3183) [ 46.167355][ T1044] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 46.167357][ T1044] ? 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)) [ 46.167360][ T1044] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 46.167362][ T1044] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 46.167366][ T1044] console_flush_one_record (kernel/printk/printk.c:3268) [ 46.167370][ T1044] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 46.167372][ T1044] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 46.167377][ T1044] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 46.167380][ T1044] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 46.167382][ T1044] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 46.167384][ T1044] ? 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) [ 46.167387][ T1044] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 46.167389][ T1044] ? vprintk_emit (kernel/printk/printk.c:2478) [ 46.167392][ T1044] vprintk_emit (kernel/printk/printk.c:2479) [ 46.167395][ T1044] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 46.167397][ T1044] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 46.167402][ T1044] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 46.167405][ T1044] _printk (kernel/printk/printk.c:2504) [ 46.167409][ T1044] ? snapshot_read.cold (user.c:?) [ 46.167413][ T1044] ? br_multicast_flood (??:?) [ 46.167416][ T1044] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 46.167417][ T1044] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 46.167419][ T1044] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 46.167423][ T1044] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 46.167427][ T1044] br_init_port (net/bridge/br_stp_if.c:39) [ 46.167429][ T1044] new_nbp (net/bridge/br_if.c:449) [ 46.167433][ T1044] br_add_if (net/bridge/br_if.c:592) [ 46.167435][ T1044] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 46.167439][ T1044] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 46.167444][ T1044] do_set_master (net/core/rtnetlink.c:3071) [ 46.167448][ T1044] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 46.167451][ T1044] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 46.167455][ T1044] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 46.167456][ T1044] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 46.167459][ T1044] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 46.167465][ T1044] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 46.167467][ T1044] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 46.167469][ T1044] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 46.167471][ T1044] ? kasan_save_stack (mm/kasan/common.c:58) [ 46.167473][ T1044] ? kasan_save_stack (mm/kasan/common.c:57) [ 46.167475][ T1044] ? kasan_save_track (mm/kasan/common.c:78) [ 46.167476][ T1044] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 46.167478][ T1044] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 46.167480][ T1044] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 46.167483][ T1044] ? ___sys_sendmsg (net/socket.c:2758) [ 46.167486][ T1044] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 46.167488][ T1044] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 46.167491][ T1044] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 46.167493][ T1044] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 46.167494][ T1044] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 46.167496][ T1044] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 46.167497][ T1044] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 46.167500][ T1044] ? __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) [ 46.167502][ T1044] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 46.167504][ T1044] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 46.167507][ T1044] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 46.167508][ T1044] ? nla_get_range_signed (lib/nlattr.c:270) [ 46.167513][ T1044] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 46.167515][ T1044] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 46.167520][ T1044] rtnl_newlink (net/core/rtnetlink.c:4215) [ 46.167526][ T1044] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 46.167527][ T1044] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 46.167532][ T1044] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 46.167534][ T1044] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 46.167536][ T1044] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 46.167538][ T1044] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 46.167541][ T1044] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 46.167543][ T1044] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 46.167546][ T1044] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 46.167547][ T1044] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 46.167552][ T1044] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 46.167554][ T1044] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 46.167557][ T1044] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 46.167560][ T1044] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 46.167563][ T1044] ? netlink_ack (./include/linux/skbuff.h:2718) [ 46.167569][ T1044] ? 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)) [ 46.167571][ T1044] ? 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)) [ 46.167576][ T1044] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 46.167579][ T1044] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 46.167582][ T1044] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 46.167586][ T1044] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 46.167590][ T1044] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 46.167593][ T1044] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 46.167595][ T1044] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 46.167600][ T1044] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 46.167603][ T1044] ____sys_sendmsg (net/socket.c:2713) [ 46.167605][ T1044] ? copy_msghdr_from_user (net/socket.c:2650) [ 46.167608][ T1044] ? sock_write_iter (net/socket.c:1269) [ 46.167609][ T1044] ? move_addr_to_kernel (net/socket.c:258) [ 46.167616][ T1044] ___sys_sendmsg (net/socket.c:2767) [ 46.167619][ T1044] ? copy_msghdr_from_user (net/socket.c:2619) [ 46.167634][ T1044] __sys_sendmsg (net/socket.c:2799) [ 46.167637][ T1044] ? __sys_sendmsg_sock (net/socket.c:2780) [ 46.167643][ T1044] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 46.167646][ T1044] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 46.167649][ T1044] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 46.167652][ T1044] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 46.167654][ T1044] RIP: 0033:0x7f928759554e [ 46.167658][ T1044] 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 [ 46.167661][ T1044] RSP: 002b:00007ffda17eb240 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 46.167663][ T1044] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f928759554e [ 46.167665][ T1044] RDX: 0000000000000000 RSI: 00007ffda17eb2f0 RDI: 0000000000000005 [ 46.167665][ T1044] RBP: 00007ffda17eb250 R08: 0000000000000000 R09: 0000000000000000 [ 46.167666][ T1044] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c30a [ 46.167667][ T1044] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffda17eb9c0 | [ 48.704683][ T1063] softirqs last disabled at (1359288): fpu__clear_user_states (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/core.c:835 (discriminator 2)) | [ 48.704685][ T1063] Preemption disabled at: | [ 48.704686][ T1063] 0x0 | [ 48.704696][ T1063] Tainted: [W]=WARN [ 48.704697][ T1063] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 48.704699][ T1063] Call Trace: [ 48.704700][ T1063] [ 48.704702][ T1063] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 48.704708][ T1063] __might_resched.cold (kernel/sched/core.c:9234) [ 48.704712][ T1063] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 48.704716][ T1063] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 48.704721][ T1063] __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)) [ 48.704722][ T1063] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 48.704729][ T1063] ? 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) [ 48.704732][ T1063] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 48.704735][ T1063] put_chars (drivers/char/virtio_console.c:1176) [ 48.704737][ T1063] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 48.704739][ T1063] ? __send_to_port (drivers/char/virtio_console.c:654) [ 48.704742][ T1063] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 48.704745][ T1063] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 48.704747][ T1063] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 48.704751][ T1063] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 48.704755][ T1063] ? mark_usage (kernel/locking/lockdep.c:4690) [ 48.704757][ T1063] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 48.704759][ T1063] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 48.704763][ T1063] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 48.704765][ T1063] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 48.704768][ T1063] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 48.704770][ T1063] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 48.704774][ T1063] console_emit_next_record (kernel/printk/printk.c:3183) [ 48.704778][ T1063] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 48.704780][ T1063] ? 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)) [ 48.704783][ T1063] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 48.704784][ T1063] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 48.704788][ T1063] console_flush_one_record (kernel/printk/printk.c:3268) [ 48.704793][ T1063] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 48.704794][ T1063] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 48.704799][ T1063] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 48.704802][ T1063] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 48.704804][ T1063] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 48.704806][ T1063] ? 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) [ 48.704809][ T1063] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 48.704811][ T1063] ? vprintk_emit (kernel/printk/printk.c:2478) [ 48.704814][ T1063] vprintk_emit (kernel/printk/printk.c:2479) [ 48.704817][ T1063] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 48.704818][ T1063] ? 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) [ 48.704821][ T1063] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 48.704824][ T1063] _printk (kernel/printk/printk.c:2504) [ 48.704828][ T1063] ? snapshot_read.cold (user.c:?) [ 48.704831][ T1063] ? 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) [ 48.704833][ T1063] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 48.704837][ T1063] ? 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) [ 48.704840][ T1063] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 48.704843][ T1063] ? exit_notify (kernel/exit.c:780) [ 48.704848][ T1063] __x64_sys_exit (kernel/exit.c:1118 kernel/exit.c:1116 kernel/exit.c:1116) [ 48.704850][ T1063] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:61) [ 48.704852][ T1063] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 48.704857][ T1063] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 48.704859][ T1063] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 48.704861][ T1063] RIP: 0033:0x7f62b4892c49 [ 48.704863][ T1063] Code: Unable to access opcode bytes at 0x7f62b4892c1f. Code starting with the faulting instruction =========================================== [ 48.704864][ T1063] RSP: 002b:00007f62b4051e60 EFLAGS: 00000246 ORIG_RAX: 000000000000003c [ 48.704867][ T1063] RAX: ffffffffffffffda RBX: 00007f62b40526c0 RCX: 00007f62b4892c49 [ 48.704868][ T1063] RDX: 0000000000000000 RSI: 0000000000801000 RDI: 0000000000000000 [ 48.704869][ T1063] RBP: 00007f62b4051f70 R08: 0000000000000001 R09: 00007f62b40526c0 [ 48.704870][ T1063] R10: 0000000000000008 R11: 0000000000000246 R12: 00007f62b3852000 Finger prints: __alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars fpu__clear_user_states:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print __irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars