====================================== | [ 10.423436][ T213] softirqs last disabled at (45461): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 10.423438][ T213] Preemption disabled at: | [ 10.423439][ T213] 0x0 | [ 10.423450][ T213] Tainted: [W]=WARN [ 10.423451][ T213] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.423453][ T213] Call Trace: [ 10.423454][ T213] [ 10.423456][ T213] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.423463][ T213] __might_resched.cold (kernel/sched/core.c:9234) [ 10.423468][ T213] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.423472][ T213] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.423477][ T213] __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)) [ 10.423479][ T213] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.423487][ T213] ? 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) [ 10.423490][ T213] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.423494][ T213] put_chars (drivers/char/virtio_console.c:1176) [ 10.423496][ T213] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.423498][ T213] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.423501][ T213] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.423507][ T213] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.423515][ T213] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.423518][ T213] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.423520][ T213] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.423525][ T213] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.423529][ T213] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.423531][ T213] ? 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)) [ 10.423534][ T213] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.423536][ T213] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.423540][ T213] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.423552][ T213] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.423554][ T213] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.423560][ T213] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.423563][ T213] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.423566][ T213] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.423570][ T213] ? 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) [ 10.423575][ T213] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.423577][ T213] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.423580][ T213] vprintk_emit (kernel/printk/printk.c:2479) [ 10.423583][ T213] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.423586][ T213] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.423590][ T213] _printk (kernel/printk/printk.c:2504) [ 10.423594][ T213] ? snapshot_read.cold (user.c:?) [ 10.423597][ T213] ? 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) [ 10.423600][ T213] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.423604][ T213] ? 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) [ 10.423607][ T213] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 10.423611][ T213] ? exit_notify (kernel/exit.c:780) [ 10.423612][ T213] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.423615][ T213] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.423619][ T213] do_group_exit (kernel/exit.c:1151) [ 10.423622][ T213] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 10.423624][ T213] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 10.423627][ T213] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.423631][ T213] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.423634][ T213] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.423636][ T213] RIP: 0033:0x7fd4c99a21b8 [ 10.423639][ T213] Code: Unable to access opcode bytes at 0x7fd4c99a218e. Code starting with the faulting instruction =========================================== [ 10.423640][ T213] RSP: 002b:00007ffc5f0315b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.423642][ T213] RAX: ffffffffffffffda RBX: 00007fd4c9ad2f88 RCX: 00007fd4c99a21b8 [ 10.423644][ T213] RDX: 00007fd4c96ecfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.423645][ T213] RBP: 00007ffc5f031610 R08: 0000000000000000 R09: 0000000000008010 [ 10.423646][ T213] R10: 00007ffc5f0313d0 R11: 0000000000000246 R12: 0000000000000001 [ 10.423647][ T213] R13: 0000000000000000 R14: 00007fd4c9ad1680 R15: 00007fd4c9ad2fa0 | [ 11.717235][ T292] softirqs last disabled at (41876): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 11.717238][ T292] Preemption disabled at: | [ 11.717238][ T292] vprintk_emit (kernel/printk/printk.c:2471) | [ 11.717247][ T292] Tainted: [W]=WARN [ 11.717248][ T292] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.717250][ T292] Call Trace: [ 11.717252][ T292] [ 11.717253][ T292] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.717259][ T292] ? vprintk_emit (kernel/printk/printk.c:2471) [ 11.717261][ T292] __might_resched.cold (kernel/sched/core.c:9234) [ 11.717266][ T292] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.717271][ T292] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.717275][ T292] __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)) [ 11.717277][ T292] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.717284][ T292] ? 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) [ 11.717287][ T292] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.717291][ T292] put_chars (drivers/char/virtio_console.c:1176) [ 11.717294][ T292] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.717297][ T292] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 11.717302][ T292] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.717311][ T292] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.717313][ T292] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.717316][ T292] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.717321][ T292] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.717324][ T292] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.717327][ T292] ? 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)) [ 11.717330][ T292] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.717332][ T292] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.717336][ T292] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.717340][ T292] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.717342][ T292] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.717348][ T292] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.717351][ T292] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.717353][ T292] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.717355][ T292] ? 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) [ 11.717359][ T292] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.717361][ T292] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.717364][ T292] vprintk_emit (kernel/printk/printk.c:2479) [ 11.717367][ T292] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.717369][ T292] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.717371][ T292] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 11.717375][ T292] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 11.717379][ T292] _printk (kernel/printk/printk.c:2504) [ 11.717383][ T292] ? snapshot_read.cold (user.c:?) [ 11.717386][ T292] ? br_multicast_flood (??:?) [ 11.717390][ T292] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 11.717391][ T292] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 11.717393][ T292] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.717397][ T292] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 11.717402][ T292] br_init_port (net/bridge/br_stp_if.c:39) [ 11.717404][ T292] new_nbp (net/bridge/br_if.c:449) [ 11.717408][ T292] br_add_if (net/bridge/br_if.c:592) [ 11.717411][ T292] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 11.717414][ T292] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 11.717420][ T292] do_set_master (net/core/rtnetlink.c:3071) [ 11.717424][ T292] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 11.717428][ T292] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 11.717431][ T292] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 11.717433][ T292] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 11.717436][ T292] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 11.717439][ T292] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.717441][ T292] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.717443][ T292] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.717446][ T292] ? kasan_save_stack (mm/kasan/common.c:58) [ 11.717448][ T292] ? kasan_save_stack (mm/kasan/common.c:57) [ 11.717450][ T292] ? kasan_save_track (mm/kasan/common.c:78) [ 11.717451][ T292] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 11.717453][ T292] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.717455][ T292] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 11.717458][ T292] ? ___sys_sendmsg (net/socket.c:2758) [ 11.717462][ T292] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.717464][ T292] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.717467][ T292] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.717469][ T292] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.717471][ T292] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.717472][ T292] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.717473][ T292] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 11.717476][ T292] ? __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) [ 11.717477][ T292] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 11.717479][ T292] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.717483][ T292] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 11.717484][ T292] ? nla_get_range_signed (lib/nlattr.c:270) [ 11.717489][ T292] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.717492][ T292] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 11.717497][ T292] rtnl_newlink (net/core/rtnetlink.c:4215) [ 11.717503][ T292] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.717505][ T292] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.717510][ T292] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.717512][ T292] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.717514][ T292] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.717516][ T292] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.717520][ T292] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.717523][ T292] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.717526][ T292] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.717527][ T292] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.717532][ T292] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.717534][ T292] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.717538][ T292] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 11.717541][ T292] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.717544][ T292] ? netlink_ack (./include/linux/skbuff.h:2718) [ 11.717552][ T292] ? 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)) [ 11.717560][ T292] ? 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)) [ 11.717568][ T292] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 11.717576][ T292] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 11.717581][ T292] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.717588][ T292] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 11.717593][ T292] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 11.717597][ T292] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.717599][ T292] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 11.717604][ T292] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 11.717607][ T292] ____sys_sendmsg (net/socket.c:2713) [ 11.717610][ T292] ? copy_msghdr_from_user (net/socket.c:2650) [ 11.717612][ T292] ? sock_write_iter (net/socket.c:1269) [ 11.717614][ T292] ? move_addr_to_kernel (net/socket.c:258) [ 11.717622][ T292] ___sys_sendmsg (net/socket.c:2767) [ 11.717625][ T292] ? copy_msghdr_from_user (net/socket.c:2619) [ 11.717642][ T292] __sys_sendmsg (net/socket.c:2799) [ 11.717645][ T292] ? __sys_sendmsg_sock (net/socket.c:2780) [ 11.717652][ T292] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.717655][ T292] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.717659][ T292] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.717662][ T292] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.717664][ T292] RIP: 0033:0x7fe85efb054e [ 11.717668][ T292] 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 [ 11.717670][ T292] RSP: 002b:00007ffdb8b33c90 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 11.717672][ T292] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fe85efb054e [ 11.717674][ T292] RDX: 0000000000000000 RSI: 00007ffdb8b33d40 RDI: 0000000000000005 [ 11.717675][ T292] RBP: 00007ffdb8b33ca0 R08: 0000000000000000 R09: 0000000000000000 [ 11.717675][ T292] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90fe43 [ 11.717676][ T292] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdb8b34400 | [ 12.861206][ T313] softirqs last disabled at (5072): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 12.861209][ T313] Preemption disabled at: | [ 12.861209][ T313] vprintk_emit (kernel/printk/printk.c:2471) | [ 12.861218][ T313] Tainted: [W]=WARN [ 12.861219][ T313] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.861221][ T313] Call Trace: [ 12.861223][ T313] [ 12.861224][ T313] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.861230][ T313] ? vprintk_emit (kernel/printk/printk.c:2471) [ 12.861232][ T313] __might_resched.cold (kernel/sched/core.c:9234) [ 12.861237][ T313] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.861241][ T313] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.861246][ T313] __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)) [ 12.861248][ T313] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.861255][ T313] ? 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) [ 12.861258][ T313] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.861262][ T313] put_chars (drivers/char/virtio_console.c:1176) [ 12.861265][ T313] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.861268][ T313] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.861271][ T313] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.861276][ T313] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.861280][ T313] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.861282][ T313] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.861287][ T313] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.861291][ T313] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.861293][ T313] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.861298][ T313] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.861302][ T313] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.861304][ T313] ? 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)) [ 12.861308][ T313] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.861309][ T313] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.861314][ T313] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.861318][ T313] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.861320][ T313] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.861326][ T313] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.861329][ T313] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.861331][ T313] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.861333][ T313] ? 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) [ 12.861337][ T313] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.861339][ T313] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.861342][ T313] vprintk_emit (kernel/printk/printk.c:2479) [ 12.861345][ T313] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.861348][ T313] ? netlink_broadcast_filtered (net/netlink/af_netlink.c:1541) [ 12.861352][ T313] ? kasan_save_stack (mm/kasan/common.c:58) [ 12.861354][ T313] ? kasan_save_stack (mm/kasan/common.c:57) [ 12.861357][ T313] _printk (kernel/printk/printk.c:2504) [ 12.861361][ T313] ? snapshot_read.cold (user.c:?) [ 12.861363][ T313] ? __sys_setsockopt (net/socket.c:2422) [ 12.861369][ T313] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 12.861372][ T313] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 12.861377][ T313] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 12.861380][ T313] ? netdev_notice (net/core/dev.c:13194) [ 12.861381][ T313] ? mark_usage (kernel/locking/lockdep.c:4690) [ 12.861388][ T313] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.861390][ T313] ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65) [ 12.861393][ T313] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 12.861397][ T313] dev_set_allmulti (net/core/dev_api.c:315) [ 12.861401][ T313] vif_add (net/ipv4/ipmr.c:900) [ 12.861403][ T313] ? __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) [ 12.861406][ T313] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 12.861410][ T313] ? ip_mr_output_finish.isra.0 (net/ipv4/ipmr.c:2304) [ 12.861414][ T313] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.861416][ T313] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 12.861421][ T313] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.861424][ T313] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 12.861428][ T313] ip_mroute_setsockopt (net/ipv4/ipmr.c:1491 (discriminator 1)) [ 12.861432][ T313] ? ipmr_rtm_route (net/ipv4/ipmr.c:2967) [ 12.861437][ T313] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 12.861440][ T313] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.861444][ T313] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 12.861446][ T313] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 12.861450][ T313] do_ip_setsockopt (net/ipv4/ip_sockglue.c:952) [ 12.861454][ T313] ? ip_sock_set_tos (net/ipv4/ip_sockglue.c:609) [ 12.861456][ T313] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.861459][ T313] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.861461][ T313] ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.861465][ T313] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.861467][ T313] ? 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) [ 12.861469][ T313] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2)) [ 12.861471][ T313] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 12.861473][ T313] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 6) kernel/locking/spinlock.c:221 (discriminator 6)) [ 12.861475][ T313] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 12.861478][ T313] ip_setsockopt (net/ipv4/ip_sockglue.c:1421) [ 12.861482][ T313] raw_setsockopt (net/ipv4/raw.c:851) [ 12.861485][ T313] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.861487][ T313] ? raw_bind (net/ipv4/raw.c:733) [ 12.861492][ T313] do_sock_setsockopt (net/socket.c:2397) [ 12.861495][ T313] ? put_user_ifreq (./arch/x86/include/asm/compat.h:94 (discriminator 1)) [ 12.861497][ T313] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.861500][ T313] ? fd_install (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:971 (discriminator 2) fs/file.c:698 (discriminator 2)) [ 12.861505][ T313] ? fd_install (./include/linux/rcupdate.h:974 (discriminator 1) fs/file.c:698 (discriminator 1)) [ 12.861509][ T313] __sys_setsockopt (net/socket.c:2422) [ 12.861514][ T313] __x64_sys_setsockopt (net/socket.c:2428 net/socket.c:2425 net/socket.c:2425) [ 12.861516][ T313] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 12.861520][ T313] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 12.861521][ T313] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 12.861523][ T313] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.861525][ T313] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.861528][ T313] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.861530][ T313] RIP: 0033:0x7fabf55fa2de [ 12.861534][ T313] Code: 55 48 63 c9 48 63 ff 45 89 c9 48 89 e5 48 83 ec 08 6a 2c e8 94 72 f7 ff c9 c3 66 90 f3 0f 1e fa 49 89 ca b8 36 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 0a c3 66 0f 1f 84 00 00 00 00 00 48 8b 15 e1 All code ======== 0: 55 push %rbp 1: 48 63 c9 movslq %ecx,%rcx 4: 48 63 ff movslq %edi,%rdi 7: 45 89 c9 mov %r9d,%r9d a: 48 89 e5 mov %rsp,%rbp d: 48 83 ec 08 sub $0x8,%rsp 11: 6a 2c push $0x2c 13: e8 94 72 f7 ff call 0xfffffffffff772ac 18: c9 leave 19: c3 ret 1a: 66 90 xchg %ax,%ax 1c: f3 0f 1e fa endbr64 20: 49 89 ca mov %rcx,%r10 23: b8 36 00 00 00 mov $0x36,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 0a ja 0x3c 32: c3 ret 33: 66 0f 1f 84 00 00 00 nopw 0x0(%rax,%rax,1) 3a: 00 00 3c: 48 rex.W 3d: 8b .byte 0x8b 3e: 15 .byte 0x15 3f: e1 .byte 0xe1 Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 0a ja 0x12 8: c3 ret 9: 66 0f 1f 84 00 00 00 nopw 0x0(%rax,%rax,1) 10: 00 00 12: 48 rex.W 13: 8b .byte 0x8b 14: 15 .byte 0x15 15: e1 .byte 0xe1 [ 12.861535][ T313] RSP: 002b:00007ffe6cd3f5d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 12.861538][ T313] RAX: ffffffffffffffda RBX: 000055ef06b992c0 RCX: 00007fabf55fa2de [ 12.861539][ T313] RDX: 00000000000000ca RSI: 0000000000000000 RDI: 0000000000000007 [ 12.861540][ T313] RBP: 00007ffe6cd3f690 R08: 0000000000000010 R09: 0000000000000001 [ 12.861541][ T313] R10: 00007ffe6cd3f610 R11: 0000000000000246 R12: 000055ef33c270c4 [ 12.861542][ T313] R13: 00007ffe6cd3f6e0 R14: 000055ef33c270b0 R15: 0000000000000000 | [ 27.127945][ C2] softirqs last disabled at (6902675): do_softirq (kernel/softirq.c:546 (discriminator 19) kernel/softirq.c:533 (discriminator 19)) | [ 27.127949][ C2] Preemption disabled at: | [ 27.127950][ C2] __dev_queue_xmit (./include/linux/bottom_half.h:20 (discriminator 2) ./include/linux/rcupdate.h:902 (discriminator 2) net/core/dev.c:4844 (discriminator 2)) | [ 27.127960][ C2] Tainted: [W]=WARN [ 27.127961][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 27.127963][ C2] Call Trace: [ 27.127964][ C2] [ 27.127966][ C2] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 27.127971][ C2] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 (discriminator 2) ./include/linux/rcupdate.h:902 (discriminator 2) net/core/dev.c:4844 (discriminator 2)) [ 27.127973][ C2] __might_resched.cold (kernel/sched/core.c:9234) [ 27.127977][ C2] ? prb_next_reserve_seq (kernel/printk/printk_ringbuffer.c:2128) [ 27.127980][ C2] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 27.127983][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.127986][ C2] __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)) [ 27.127988][ C2] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 27.127991][ C2] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 27.127996][ C2] ? 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) [ 27.127998][ C2] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 27.128000][ C2] put_chars (drivers/char/virtio_console.c:1176) [ 27.128002][ C2] ? __send_to_port (drivers/char/virtio_console.c:654) [ 27.128004][ C2] ? console_prepend_replay (kernel/printk/printk.c:3005) [ 27.128007][ C2] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 27.128012][ C2] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 27.128013][ C2] ? vsnprintf (lib/vsprintf.c:2900) [ 27.128016][ C2] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 27.128017][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.128018][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.128020][ C2] console_emit_next_record (kernel/printk/printk.c:3183) [ 27.128023][ C2] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 27.128025][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.128026][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.128027][ C2] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 27.128030][ C2] ? console_flush_one_record (kernel/printk/printk.c:3247) [ 27.128032][ C2] console_flush_one_record (kernel/printk/printk.c:3268) [ 27.128034][ C2] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 27.128037][ C2] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 27.128039][ C2] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 27.128040][ C2] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 27.128042][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.128043][ C2] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 27.128045][ C2] ? 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) [ 27.128047][ C2] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 27.128049][ C2] ? vprintk_emit (kernel/printk/printk.c:2478) [ 27.128050][ C2] vprintk_emit (kernel/printk/printk.c:2479) [ 27.128052][ C2] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 27.128054][ C2] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 27.128056][ C2] _printk (kernel/printk/printk.c:2504) [ 27.128059][ C2] ? snapshot_read.cold (user.c:?) [ 27.128061][ C2] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 27.128063][ C2] ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723) [ 27.128065][ C2] print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1)) [ 27.128067][ C2] mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310) [ 27.128070][ C2] mark_lock (kernel/locking/lockdep.c:4769) [ 27.128072][ C2] mark_usage (kernel/locking/lockdep.c:4658) [ 27.128074][ C2] __lock_acquire (kernel/locking/lockdep.c:5208) [ 27.128077][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 27.128078][ C2] ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) [ 27.128082][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.128083][ C2] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 27.128085][ C2] ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) [ 27.128086][ C2] _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1)) [ 27.128088][ C2] ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) [ 27.128089][ C2] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) [ 27.128091][ C2] ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) [ 27.128092][ C2] call_timer_fn (kernel/time/timer.c:1748) [ 27.128095][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.128097][ C2] ? detach_if_pending (./include/linux/list.h:1159) [ 27.128099][ C2] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 27.128100][ C2] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 27.128102][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.128104][ C2] __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374) [ 27.128106][ C2] ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) [ 27.128108][ C2] ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407) [ 27.128110][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 27.128112][ C2] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 27.128115][ C2] run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403) [ 27.128117][ C2] ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19)) [ 27.128119][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.128120][ C2] handle_softirqs (kernel/softirq.c:645) [ 27.128123][ C2] ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1)) [ 27.128124][ C2] ? 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) [ 27.128126][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.128127][ C2] ? __dev_queue_xmit (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:920 (discriminator 2) net/core/dev.c:4961 (discriminator 2)) [ 27.128129][ C2] do_softirq (kernel/softirq.c:546 (discriminator 19) kernel/softirq.c:533 (discriminator 19)) [ 27.128131][ C2] [ 27.128131][ C2] [ 27.128132][ C2] __local_bh_enable_ip (kernel/softirq.c:473) [ 27.128134][ C2] __dev_queue_xmit (./include/linux/bottom_half.h:33 (discriminator 2) ./include/linux/rcupdate.h:923 (discriminator 2) net/core/dev.c:4961 (discriminator 2)) [ 27.128136][ C2] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 27.128138][ C2] ? netdev_core_pick_tx (net/core/dev.c:4784) [ 27.128140][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:124 (discriminator 1) kernel/locking/lockdep.c:5884 (discriminator 1)) [ 27.128142][ C2] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 27.128143][ C2] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 27.128145][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.128146][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.128147][ C2] ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1)) [ 27.128150][ C2] ? neigh_hh_output (./include/net/neighbour.h:525) [ 27.128154][ C2] ip_finish_output2 (./include/net/neighbour.h:558 net/ipv4/ip_output.c:236) [ 27.128156][ C2] ? ip_dst_mtu_maybe_forward (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/ip.h:504 (discriminator 2)) [ 27.128157][ C2] ? ip_copy_metadata (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:1475 ./include/linux/rcuref.h:87 ./include/net/dst.h:247 ./include/net/dst.h:261 ./include/net/dst.h:294 ./include/net/dst.h:299 net/ipv4/ip_output.c:558) [ 27.128158][ C2] ? ip_fragment.constprop.0 (net/ipv4/ip_output.c:587 (discriminator 41)) [ 27.128160][ C2] ? ip_fast_csum (lib/checksum.c:99) [ 27.128164][ C2] ? ip_fraglist_prepare (net/ipv4/ip_output.c:98 net/ipv4/ip_output.c:638) [ 27.128165][ C2] ? mark_usage (kernel/locking/lockdep.c:4690) [ 27.128167][ C2] ip_do_fragment (net/ipv4/ip_output.c:862) [ 27.128169][ C2] ? ip_fragment.constprop.0 (net/ipv4/ip_output.c:587 (discriminator 41)) [ 27.128171][ C2] ? ip4_dst_hoplimit (./include/net/dst.h:582 (discriminator 4) ./include/net/dst.h:587 (discriminator 4) ./include/net/route.h:395 (discriminator 4)) [ 27.128173][ C2] ? ip_dst_mtu_maybe_forward (./include/linux/rcupdate.h:882 ./include/net/ip.h:504) [ 27.128174][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 27.128176][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.128178][ C2] ip_output (./include/linux/netfilter.h:314 net/ipv4/ip_output.c:437) [ 27.128179][ C2] ? ip_finish_output (./include/linux/cgroup.h:915) [ 27.128181][ C2] ? ip_make_skb (net/ipv4/ip_output.c:1584) [ 27.128183][ C2] ? ip_frag_init (./include/linux/skbuff.h:3160) [ 27.128184][ C2] ? ip_flush_pending_frames (net/ipv4/ip_output.c:1550) [ 27.128187][ C2] ip_send_skb (./include/net/dst.h:470 (discriminator 4) net/ipv4/ip_output.c:131 (discriminator 4) net/ipv4/ip_output.c:1510 (discriminator 4)) [ 27.128188][ C2] udp_send_skb (net/ipv4/udp.c:1163 (discriminator 1)) [ 27.128192][ C2] udp_sendmsg (net/ipv4/udp.c:1445) [ 27.128195][ C2] ? udp_cmsg_send (net/ipv4/udp.c:1218) [ 27.128196][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 27.128198][ C2] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 27.128200][ C2] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 27.128202][ C2] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 27.128205][ C2] ? anon_pipe_trim_and_unlock (fs/pipe.c:192) [ 27.128209][ C2] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 27.128212][ C2] ? fdget (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:49 fs/file.c:1194 fs/file.c:1208) [ 27.128215][ C2] __sys_sendto (net/socket.c:2281) [ 27.128217][ C2] ? __ia32_sys_getpeername (net/socket.c:2235) [ 27.128221][ C2] ? xfd_validate_state (arch/x86/kernel/fpu/xstate.c:1497 (discriminator 1) arch/x86/kernel/fpu/xstate.c:1543 (discriminator 1)) [ 27.128225][ C2] ? ksys_read (fs/read_write.c:716) [ 27.128227][ C2] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 27.128229][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 27.128234][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 27.128236][ C2] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 27.128238][ C2] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 27.128240][ C2] ? irq_exit_rcu (kernel/softirq.c:786) [ 27.128241][ C2] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 27.128243][ C2] RIP: 0033:0x7fe9a8de854e [ 27.128247][ C2] 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 [ 27.128249][ C2] RSP: 002b:00007ffe5fd221a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 27.128253][ C2] RAX: ffffffffffffffda RBX: 000055c5110699e0 RCX: 00007fe9a8de854e [ 27.128254][ C2] RDX: 0000000000002000 RSI: 000055c5110f0a70 RDI: 0000000000000005 [ 27.128255][ C2] RBP: 00007ffe5fd221b0 R08: 0000000000000000 R09: 0000000000000000 [ 27.128256][ C2] R10: 0000000000000000 R11: 0000000000000202 R12: 000055c5110699e0 [ 27.128257][ C2] R13: 000055c5110ecac0 R14: 000055c511069350 R15: 000055c5110699e0 | [ 27.199009][ C2] | [ 27.199082][ C2] | [ 27.199082][ C2] stack backtrace: | [ 27.199318][ C2] Tainted: [W]=WARN [ 27.199319][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 27.199320][ C2] Call Trace: [ 27.199322][ C2] [ 27.199322][ C2] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 27.199326][ C2] print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141) [ 27.199329][ C2] mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310) [ 27.199333][ C2] mark_lock (kernel/locking/lockdep.c:4769) [ 27.199334][ C2] mark_usage (kernel/locking/lockdep.c:4658) [ 27.199336][ C2] __lock_acquire (kernel/locking/lockdep.c:5208) [ 27.199339][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 27.199340][ C2] ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) [ 27.199342][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.199344][ C2] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 27.199346][ C2] ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) [ 27.199347][ C2] _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1)) [ 27.199349][ C2] ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) [ 27.199350][ C2] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) [ 27.199352][ C2] ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) [ 27.199353][ C2] call_timer_fn (kernel/time/timer.c:1748) [ 27.199355][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.199356][ C2] ? detach_if_pending (./include/linux/list.h:1159) [ 27.199358][ C2] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 27.199360][ C2] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 27.199362][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.199364][ C2] __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374) [ 27.199366][ C2] ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) [ 27.199367][ C2] ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407) [ 27.199369][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 27.199372][ C2] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 27.199375][ C2] run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403) [ 27.199377][ C2] ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19)) [ 27.199379][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.199380][ C2] handle_softirqs (kernel/softirq.c:645) [ 27.199382][ C2] ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1)) [ 27.199384][ C2] ? 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) [ 27.199386][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.199387][ C2] ? __dev_queue_xmit (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:920 (discriminator 2) net/core/dev.c:4961 (discriminator 2)) [ 27.199389][ C2] do_softirq (kernel/softirq.c:546 (discriminator 19) kernel/softirq.c:533 (discriminator 19)) [ 27.199390][ C2] [ 27.199391][ C2] [ 27.199391][ C2] __local_bh_enable_ip (kernel/softirq.c:473) [ 27.199393][ C2] __dev_queue_xmit (./include/linux/bottom_half.h:33 (discriminator 2) ./include/linux/rcupdate.h:923 (discriminator 2) net/core/dev.c:4961 (discriminator 2)) [ 27.199395][ C2] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 27.199398][ C2] ? netdev_core_pick_tx (net/core/dev.c:4784) [ 27.199400][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:124 (discriminator 1) kernel/locking/lockdep.c:5884 (discriminator 1)) [ 27.199401][ C2] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 27.199403][ C2] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 27.199404][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.199405][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.199407][ C2] ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1)) [ 27.199410][ C2] ? neigh_hh_output (./include/net/neighbour.h:525) [ 27.199412][ C2] ip_finish_output2 (./include/net/neighbour.h:558 net/ipv4/ip_output.c:236) [ 27.199414][ C2] ? ip_dst_mtu_maybe_forward (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/ip.h:504 (discriminator 2)) [ 27.199415][ C2] ? ip_copy_metadata (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:1475 ./include/linux/rcuref.h:87 ./include/net/dst.h:247 ./include/net/dst.h:261 ./include/net/dst.h:294 ./include/net/dst.h:299 net/ipv4/ip_output.c:558) [ 27.199416][ C2] ? ip_fragment.constprop.0 (net/ipv4/ip_output.c:587 (discriminator 41)) [ 27.199418][ C2] ? ip_fast_csum (lib/checksum.c:99) [ 27.199421][ C2] ? ip_fraglist_prepare (net/ipv4/ip_output.c:98 net/ipv4/ip_output.c:638) [ 27.199422][ C2] ? mark_usage (kernel/locking/lockdep.c:4690) [ 27.199424][ C2] ip_do_fragment (net/ipv4/ip_output.c:862) [ 27.199426][ C2] ? ip_fragment.constprop.0 (net/ipv4/ip_output.c:587 (discriminator 41)) [ 27.199428][ C2] ? ip4_dst_hoplimit (./include/net/dst.h:582 (discriminator 4) ./include/net/dst.h:587 (discriminator 4) ./include/net/route.h:395 (discriminator 4)) [ 27.199430][ C2] ? ip_dst_mtu_maybe_forward (./include/linux/rcupdate.h:882 ./include/net/ip.h:504) [ 27.199431][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 27.199433][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.199435][ C2] ip_output (./include/linux/netfilter.h:314 net/ipv4/ip_output.c:437) [ 27.199436][ C2] ? ip_finish_output (./include/linux/cgroup.h:915) [ 27.199437][ C2] ? ip_make_skb (net/ipv4/ip_output.c:1584) [ 27.199439][ C2] ? ip_frag_init (./include/linux/skbuff.h:3160) [ 27.199440][ C2] ? ip_flush_pending_frames (net/ipv4/ip_output.c:1550) [ 27.199443][ C2] ip_send_skb (./include/net/dst.h:470 (discriminator 4) net/ipv4/ip_output.c:131 (discriminator 4) net/ipv4/ip_output.c:1510 (discriminator 4)) [ 27.199444][ C2] udp_send_skb (net/ipv4/udp.c:1163 (discriminator 1)) [ 27.199447][ C2] udp_sendmsg (net/ipv4/udp.c:1445) [ 27.199449][ C2] ? udp_cmsg_send (net/ipv4/udp.c:1218) [ 27.199450][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 27.199451][ C2] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 27.199454][ C2] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 27.199456][ C2] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 27.199458][ C2] ? anon_pipe_trim_and_unlock (fs/pipe.c:192) [ 27.199462][ C2] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 27.199463][ C2] ? fdget (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:49 fs/file.c:1194 fs/file.c:1208) [ 27.199466][ C2] __sys_sendto (net/socket.c:2281) [ 27.199468][ C2] ? __ia32_sys_getpeername (net/socket.c:2235) [ 27.199472][ C2] ? xfd_validate_state (arch/x86/kernel/fpu/xstate.c:1497 (discriminator 1) arch/x86/kernel/fpu/xstate.c:1543 (discriminator 1)) [ 27.199474][ C2] ? ksys_read (fs/read_write.c:716) [ 27.199477][ C2] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 27.199478][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 27.199481][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 27.199482][ C2] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 27.199484][ C2] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 27.199486][ C2] ? irq_exit_rcu (kernel/softirq.c:786) [ 27.199487][ C2] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 27.199489][ C2] RIP: 0033:0x7fe9a8de854e [ 27.199491][ C2] 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 [ 27.199492][ C2] RSP: 002b:00007ffe5fd221a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 27.199494][ C2] RAX: ffffffffffffffda RBX: 000055c5110699e0 RCX: 00007fe9a8de854e [ 27.199495][ C2] RDX: 0000000000002000 RSI: 000055c5110f0a70 RDI: 0000000000000005 [ 27.199496][ C2] RBP: 00007ffe5fd221b0 R08: 0000000000000000 R09: 0000000000000000 [ 27.199497][ C2] R10: 0000000000000000 R11: 0000000000000202 R12: 000055c5110699e0 [ 27.199498][ C2] R13: 000055c5110ecac0 R14: 000055c511069350 R15: 000055c5110699e0 | [ 519.217014][ T12] softirqs last disabled at (11598): __fib6_clean_all (./include/linux/spinlock.h:353 net/ipv6/ip6_fib.c:2323) | [ 519.217016][ T12] Preemption disabled at: | [ 519.217017][ T12] 0x0 | [ 519.217027][ T12] Tainted: [W]=WARN [ 519.217028][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 519.217029][ T12] Workqueue: netns cleanup_net [ 519.217035][ T12] Call Trace: [ 519.217037][ T12] [ 519.217038][ T12] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 519.217044][ T12] __might_resched.cold (kernel/sched/core.c:9234) [ 519.217048][ T12] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 519.217053][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 519.217056][ 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)) [ 519.217059][ T12] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 519.217062][ T12] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 519.217067][ 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) [ 519.217069][ T12] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 519.217072][ T12] put_chars (drivers/char/virtio_console.c:1176) [ 519.217073][ T12] ? __send_to_port (drivers/char/virtio_console.c:654) [ 519.217075][ T12] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 519.217077][ T12] ? console_prepend_replay (kernel/printk/printk.c:3005) [ 519.217080][ T12] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 519.217085][ T12] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 519.217087][ T12] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 519.217089][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 519.217091][ T12] console_emit_next_record (kernel/printk/printk.c:3183) [ 519.217094][ T12] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 519.217096][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 519.217098][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 519.217099][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 519.217100][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 519.217102][ T12] ? console_flush_one_record (kernel/printk/printk.c:3247) [ 519.217103][ T12] console_flush_one_record (kernel/printk/printk.c:3268) [ 519.217106][ T12] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 519.217109][ T12] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 519.217111][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 519.217112][ T12] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 519.217114][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 519.217115][ T12] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 519.217117][ 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) [ 519.217118][ T12] ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6)) [ 519.217120][ T12] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 519.217122][ T12] ? vprintk_emit (kernel/printk/printk.c:2478) [ 519.217124][ T12] vprintk_emit (kernel/printk/printk.c:2479) [ 519.217125][ T12] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 519.217126][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 519.217128][ T12] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 519.217131][ T12] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78) [ 519.217133][ T12] _printk (kernel/printk/printk.c:2504) [ 519.217136][ T12] ? snapshot_read.cold (user.c:?) [ 519.217138][ T12] ? ipv6_mc_down (net/ipv6/mcast.c:1137 net/ipv6/mcast.c:2792) [ 519.217141][ T12] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 519.217145][ T12] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 519.217147][ T12] br_device_event (net/bridge/br.c:111) [ 519.217149][ T12] ? packet_sendmsg_spkt (af_packet.c:?) [ 519.217151][ T12] ? addrconf_notify (net/ipv6/addrconf.c:3812) [ 519.217154][ T12] notifier_call_chain (kernel/notifier.c:85) [ 519.217158][ T12] netif_close_many (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:1829) [ 519.217161][ T12] ? __dev_close_many (net/core/dev.c:1804) [ 519.217163][ T12] ? netif_close_many_and_unlock (net/core/dev.c:12411) [ 519.217165][ T12] unregister_netdevice_many_notify (net/core/dev.c:12487) [ 519.217167][ T12] ? ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253) [ 519.217169][ T12] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 519.217171][ T12] ? kthread (kernel/kthread.c:436) [ 519.217173][ T12] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 519.217176][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 519.217178][ T12] ? unregister_netdevice_queued (./include/linux/list.h:419 (discriminator 3)) [ 519.217180][ T12] ? get_rps_cpu (net/core/dev.c:5240) [ 519.217182][ T12] default_device_exit_batch (net/core/dev.c:12589 net/core/dev.c:13288) [ 519.217184][ T12] ? __mutex_unlock_slowpath (./include/linux/preempt.h:500 (discriminator 1) kernel/locking/mutex.c:999 (discriminator 1)) [ 519.217185][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 519.217187][ T12] ? unregister_netdevice_queue (./include/linux/list.h:173) [ 519.217188][ T12] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 519.217190][ T12] ? fou_exit_net (net/ipv4/fou_core.c:1228) [ 519.217193][ T12] ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253) [ 519.217195][ T12] ? netns_install (./include/linux/ns_common.h:26) [ 519.217197][ T12] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 519.217200][ T12] cleanup_net (net/core/net_namespace.c:706) [ 519.217202][ T12] ? net_passive_dec (./include/linux/llist.h:241) [ 519.217203][ T12] ? update_load_avg (kernel/sched/fair.c:5864) [ 519.217206][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 519.217208][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 519.217209][ T12] process_one_work (kernel/workqueue.c:3387) [ 519.217212][ T12] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 519.217214][ T12] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 519.217216][ T12] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 519.217219][ T12] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 519.217222][ T12] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 519.217223][ T12] kthread (kernel/kthread.c:436) [ 519.217225][ T12] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 519.217227][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 519.217228][ T12] ret_from_fork (arch/x86/kernel/process.c:158) [ 519.217230][ T12] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 519.217232][ T12] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 519.217235][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) Finger prints: mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock __fib6_clean_all:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print __alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print do_softirq:__dev_queue_xmit:dump_stack_lvl:__kmalloc_noprof:put_chars