rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (1 GPs behind) idle=a3a4/1/0x4000000000000000 softirq=39677/39678 fqs=0
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P9862/1:b..l
rcu: (detected by 1, t=10502 jiffies, g=32541, q=150 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 9714 Comm: syz-executor Not tainted 6.13.0-rc6-next-20250107-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:23 [inline]
RIP: 0010:raw_atomic_read include/linux/atomic/atomic-arch-fallback.h:457 [inline]
RIP: 0010:rcu_is_watching_curr_cpu include/linux/context_tracking.h:128 [inline]
RIP: 0010:rcu_is_watching+0x5a/0xb0 kernel/rcu/tree.c:716
Code: f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 2c 86 80 00 48 c7 c3 58 79 03 00 49 03 1e 48 89 d8 48 c1 e8 03 42 0f b6 04 38 <84> c0 75 22 8b 03 65 ff 0d 61 d3 5e 7e 74 10 83 e0 04 c1 e8 02 5b
RSP: 0018:ffffc90000007b00 EFLAGS: 00000806
RAX: 0000000000000000 RBX: ffff8880b8637958 RCX: ffffffff819ac8d0
RDX: 0000000000000000 RSI: ffffffff8c600440 RDI: ffffffff8c600400
RBP: ffffc90000007c50 R08: ffffffff901ac9f7 R09: 1ffffffff203593e
R10: dffffc0000000000 R11: fffffbfff203593f R12: 1ffff92000000f70
R13: ffffffff89f4e9c4 R14: ffffffff8e301bd0 R15: dffffc0000000000
FS: 000055558be06500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020508000 CR3: 000000004ad6e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
trace_lock_release include/trace/events/lock.h:69 [inline]
lock_release+0xbf/0xa30 kernel/locking/lockdep.c:5862
__raw_spin_unlock include/linux/spinlock_api_smp.h:141 [inline]
_raw_spin_unlock+0x16/0x50 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
advance_sched+0x9b4/0xca0 net/sched/sch_taprio.c:981
__run_hrtimer kernel/time/hrtimer.c:1739 [inline]
__hrtimer_run_queues+0x59b/0xd30 kernel/time/hrtimer.c:1803
hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1865
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
__sysvec_apic_timer_interrupt+0x110/0x420 arch/x86/kernel/apic/apic.c:1055
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:console_flush_all+0x996/0xeb0
Code: 48 21 c3 0f 85 16 02 00 00 e8 46 81 20 00 4c 8b 7c 24 10 4d 85 f6 75 07 e8 37 81 20 00 eb 06 e8 30 81 20 00 fb 48 8b 5c 24 18 <48> 8b 44 24 30 42 80 3c 28 00 74 08 48 89 df e8 e6 d0 86 00 4c 8b
RSP: 0018:ffffc90010e667a0 EFLAGS: 00000293
RAX: ffffffff819eb830 RBX: ffffffff8f180858 RCX: ffff88802bd51e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90010e66950 R08: ffffffff819eb807 R09: 1ffffffff285b708
R10: dffffc0000000000 R11: fffffbfff285b709 R12: ffffffff8f180800
R13: dffffc0000000000 R14: 0000000000000200 R15: ffffc90010e669a0
__console_flush_and_unlock kernel/printk/printk.c:3269 [inline]
console_unlock+0x14f/0x3b0 kernel/printk/printk.c:3309
vprintk_emit+0x730/0xa10 kernel/printk/printk.c:2432
_printk+0xd5/0x120 kernel/printk/printk.c:2457
br_set_state+0x3d9/0x7b0 net/bridge/br_stp.c:57
new_nbp+0x310/0x430 net/bridge/br_if.c:443
br_add_if+0x28d/0xef0 net/bridge/br_if.c:599
do_set_master net/core/rtnetlink.c:2917 [inline]
do_setlink+0xe40/0x4210 net/core/rtnetlink.c:3116
rtnl_changelink net/core/rtnetlink.c:3723 [inline]
__rtnl_newlink net/core/rtnetlink.c:3875 [inline]
rtnl_newlink+0x1bb6/0x2210 net/core/rtnetlink.c:4012
rtnetlink_rcv_msg+0x791/0xcf0 net/core/rtnetlink.c:6902
netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543
netlink_unicast_kernel net/netlink/af_netlink.c:1322 [inline]
netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1348
netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1892
sock_sendmsg_nosec net/socket.c:711 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:726
__sys_sendto+0x363/0x4c0 net/socket.c:2208
__do_sys_sendto net/socket.c:2215 [inline]
__se_sys_sendto net/socket.c:2211 [inline]
__x64_sys_sendto+0xde/0x100 net/socket.c:2211
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa3a1b87bbc
Code: 2a 5f 02 00 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 70 5f 02 00 48 8b
RSP: 002b:00007fff34ec0490 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fa3a28a4620 RCX: 00007fa3a1b87bbc
RDX: 0000000000000028 RSI: 00007fa3a28a4670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007fff34ec04e4 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 0000000000000000 R14: 00007fa3a28a4670 R15: 0000000000000000
task:syz.6.1079 state:R running task stack:24992 pid:9862 tgid:9860 ppid:8645 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5371 [inline]
__schedule+0x18f6/0x4cd0 kernel/sched/core.c:6758
preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6937
preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6961
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
__raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
do_anonymous_page mm/memory.c:4936 [inline]
do_pte_missing mm/memory.c:4045 [inline]
handle_pte_fault mm/memory.c:5889 [inline]
__handle_mm_fault+0x5ca2/0x70f0 mm/memory.c:6032
handle_mm_fault+0x3e2/0x8c0 mm/memory.c:6201
do_user_addr_fault arch/x86/mm/fault.c:1337 [inline]
handle_page_fault arch/x86/mm/fault.c:1480 [inline]
exc_page_fault+0x459/0x8b0 arch/x86/mm/fault.c:1538
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f241b648c46
RSP: 002b:00007f241c5274a0 EFLAGS: 00010206
RAX: 000000000081d001 RBX: 00007f241c527540 RCX: 0000000000000006
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00007f241c5275e0
RBP: 0000000000000102 R08: 00007f2411000000 R09: 000000000081d000
R10: 0000000000000000 R11: 00007f241c527550 R12: 0000000000000001
R13: 00007f241b819040 R14: 0000000000000000 R15: 00007f241c5275e0
rcu: rcu_preempt kthread starved for 10502 jiffies! g32541 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:25816 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5371 [inline]
__schedule+0x18f6/0x4cd0 kernel/sched/core.c:6758
__schedule_loop kernel/sched/core.c:6835 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6850
schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2024
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2226
kthread+0x7a9/0x920 kernel/kthread.c:464
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 9864 Comm: syz.2.1076 Not tainted 6.13.0-rc6-next-20250107-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline]
RIP: 0010:smp_call_function_many_cond+0x1bae/0x2d30 kernel/smp.c:885
Code: 89 e6 83 e6 01 31 ff e8 70 e9 0b 00 41 83 e4 01 4c 8b 64 24 68 75 07 e8 20 e5 0b 00 eb 41 f3 90 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 03 84 c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 fb e4 0b
RSP: 0018:ffffc900040af980 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: 1ffff110170c8c91 RCX: 0000000000080000
RDX: ffffc9000c229000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc900040afb80 R08: ffffffff81b35430 R09: 1ffffffff285b708
R10: dffffc0000000000 R11: fffffbfff285b709 R12: ffff8880b873fb48
R13: ffff8880b8646488 R14: ffff8880b873fb40 R15: 0000000000000000
FS: 00007ff5a89066c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c469f3b CR3: 0000000056fe2000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1052
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:2118 [inline]
text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2328
text_poke_flush arch/x86/kernel/alternative.c:2519 [inline]
text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2526
arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
static_key_slow_inc_cpuslocked+0x80/0xf0 kernel/jump_label.c:168
static_key_slow_inc+0x1a/0x30 kernel/jump_label.c:191
io_uring_create+0xf2/0xc00 io_uring/io_uring.c:3611
io_uring_setup io_uring/io_uring.c:3776 [inline]
__do_sys_io_uring_setup io_uring/io_uring.c:3803 [inline]
__se_sys_io_uring_setup+0x2ba/0x330 io_uring/io_uring.c:3797
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff5a7b85d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff5a8905fc8 EFLAGS: 00000206 ORIG_RAX: 00000000000001a9
RAX: ffffffffffffffda RBX: 00007ff5a7d75fa0 RCX: 00007ff5a7b85d29
RDX: 00000000200001c0 RSI: 0000000020000480 RDI: 00000000000000d1
RBP: 0000000020000480 R08: 0000000000000000 R09: 00000000200001c0
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000020000080 R14: 00000000000000d1 R15: 00000000200001c0
watchdog: BUG: soft lockup - CPU#1 stuck for 246s! [syz.2.1076:9864]
Modules linked in:
irq event stamp: 1220294
hardirqs last enabled at (1220293): [] irqentry_exit+0x63/0x90 kernel/entry/common.c:357
hardirqs last disabled at (1220294): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049
softirqs last enabled at (1220292): [] __do_softirq kernel/softirq.c:595 [inline]
softirqs last enabled at (1220292): [] invoke_softirq kernel/softirq.c:435 [inline]
softirqs last enabled at (1220292): [] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662
softirqs last disabled at (1220247): [] __do_softirq kernel/softirq.c:595 [inline]
softirqs last disabled at (1220247): [] invoke_softirq kernel/softirq.c:435 [inline]
softirqs last disabled at (1220247): [] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662
CPU: 1 UID: 0 PID: 9864 Comm: syz.2.1076 Not tainted 6.13.0-rc6-next-20250107-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline]
RIP: 0010:smp_call_function_many_cond+0x1ba4/0x2d30 kernel/smp.c:885
Code: 03 84 c0 75 7e 45 8b 65 00 44 89 e6 83 e6 01 31 ff e8 70 e9 0b 00 41 83 e4 01 4c 8b 64 24 68 75 07 e8 20 e5 0b 00 eb 41 f3 90 <48> b8 00 00 00 00 00 fc ff df 0f b6 04 03 84 c0 75 11 41 f7 45 00
RSP: 0018:ffffc900040af980 EFLAGS: 00000246
RAX: ffffffff81b35465 RBX: 1ffff110170c8c91 RCX: 0000000000080000
RDX: ffffc9000c229000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc900040afb80 R08: ffffffff81b35430 R09: 1ffffffff285b708
R10: dffffc0000000000 R11: fffffbfff285b709 R12: ffff8880b873fb48
R13: ffff8880b8646488 R14: ffff8880b873fb40 R15: 0000000000000000
FS: 00007ff5a89066c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c469f3b CR3: 0000000056fe2000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1052
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:2118 [inline]
text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2328
text_poke_flush arch/x86/kernel/alternative.c:2519 [inline]
text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2526
arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
static_key_slow_inc_cpuslocked+0x80/0xf0 kernel/jump_label.c:168
static_key_slow_inc+0x1a/0x30 kernel/jump_label.c:191
io_uring_create+0xf2/0xc00 io_uring/io_uring.c:3611
io_uring_setup io_uring/io_uring.c:3776 [inline]
__do_sys_io_uring_setup io_uring/io_uring.c:3803 [inline]
__se_sys_io_uring_setup+0x2ba/0x330 io_uring/io_uring.c:3797
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff5a7b85d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff5a8905fc8 EFLAGS: 00000206 ORIG_RAX: 00000000000001a9
RAX: ffffffffffffffda RBX: 00007ff5a7d75fa0 RCX: 00007ff5a7b85d29
RDX: 00000000200001c0 RSI: 0000000020000480 RDI: 00000000000000d1
RBP: 0000000020000480 R08: 0000000000000000 R09: 00000000200001c0
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000020000080 R14: 00000000000000d1 R15: 00000000200001c0
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 9714 Comm: syz-executor Not tainted 6.13.0-rc6-next-20250107-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:kasan_mem_to_shadow include/linux/kasan.h:64 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:130 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x56/0x290 mm/kasan/generic.c:189
Code: fd fe ff 01 00 0f 86 43 02 00 00 48 89 fb 48 c1 eb 03 49 ba 00 00 00 00 00 fc ff df 4e 8d 1c 13 49 ff c8 4d 89 c1 49 c1 e9 03 <49> be 01 00 00 00 00 fc ff df 4f 8d 3c 31 4c 89 fd 4c 29 dd 48 83
RSP: 0018:ffffc900000079d8 EFLAGS: 00000807
RAX: 0000000000000001 RBX: 1ffffffff285b709 RCX: ffffffff819b197a
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff942db848
RBP: 000000000001ffff R08: ffffffff942db84f R09: 1ffffffff285b709
R10: dffffc0000000000 R11: fffffbfff285b709 R12: ffff88802bd528d4
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff88802bd52968
FS: 000055558be06500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020508000 CR3: 000000004ad6e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:68 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
hlock_class kernel/locking/lockdep.c:230 [inline]
mark_lock+0x9a/0x360 kernel/locking/lockdep.c:4729
mark_usage kernel/locking/lockdep.c:4637 [inline]
__lock_acquire+0xbc3/0x2100 kernel/locking/lockdep.c:5182
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851
__raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline]
_raw_spin_lock_irq+0xd3/0x120 kernel/locking/spinlock.c:170
__run_hrtimer kernel/time/hrtimer.c:1743 [inline]
__hrtimer_run_queues+0x670/0xd30 kernel/time/hrtimer.c:1803
hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1865
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
__sysvec_apic_timer_interrupt+0x110/0x420 arch/x86/kernel/apic/apic.c:1055
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:console_flush_all+0x996/0xeb0
Code: 48 21 c3 0f 85 16 02 00 00 e8 46 81 20 00 4c 8b 7c 24 10 4d 85 f6 75 07 e8 37 81 20 00 eb 06 e8 30 81 20 00 fb 48 8b 5c 24 18 <48> 8b 44 24 30 42 80 3c 28 00 74 08 48 89 df e8 e6 d0 86 00 4c 8b
RSP: 0018:ffffc90010e667a0 EFLAGS: 00000293
RAX: ffffffff819eb830 RBX: ffffffff8f180858 RCX: ffff88802bd51e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90010e66950 R08: ffffffff819eb807 R09: 1ffffffff285b708
R10: dffffc0000000000 R11: fffffbfff285b709 R12: ffffffff8f180800
R13: dffffc0000000000 R14: 0000000000000200 R15: ffffc90010e669a0
__console_flush_and_unlock kernel/printk/printk.c:3269 [inline]
console_unlock+0x14f/0x3b0 kernel/printk/printk.c:3309
vprintk_emit+0x730/0xa10 kernel/printk/printk.c:2432
_printk+0xd5/0x120 kernel/printk/printk.c:2457
br_set_state+0x3d9/0x7b0 net/bridge/br_stp.c:57
new_nbp+0x310/0x430 net/bridge/br_if.c:443
br_add_if+0x28d/0xef0 net/bridge/br_if.c:599
do_set_master net/core/rtnetlink.c:2917 [inline]
do_setlink+0xe40/0x4210 net/core/rtnetlink.c:3116
rtnl_changelink net/core/rtnetlink.c:3723 [inline]
__rtnl_newlink net/core/rtnetlink.c:3875 [inline]
rtnl_newlink+0x1bb6/0x2210 net/core/rtnetlink.c:4012
rtnetlink_rcv_msg+0x791/0xcf0 net/core/rtnetlink.c:6902
netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543
netlink_unicast_kernel net/netlink/af_netlink.c:1322 [inline]
netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1348
netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1892
sock_sendmsg_nosec net/socket.c:711 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:726
__sys_sendto+0x363/0x4c0 net/socket.c:2208
__do_sys_sendto net/socket.c:2215 [inline]
__se_sys_sendto net/socket.c:2211 [inline]
__x64_sys_sendto+0xde/0x100 net/socket.c:2211
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa3a1b87bbc
Code: 2a 5f 02 00 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 70 5f 02 00 48 8b
RSP: 002b:00007fff34ec0490 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fa3a28a4620 RCX: 00007fa3a1b87bbc
RDX: 0000000000000028 RSI: 00007fa3a28a4670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007fff34ec04e4 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 0000000000000000 R14: 00007fa3a28a4670 R15: 0000000000000000