rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 1-....: (10501 ticks this GP) idle=132c/1/0x4000000000000000 softirq=32170/32170 fqs=4450
rcu: hardirqs softirqs csw/system
rcu: number: 1412822 0 0
rcu: cputime: 17360 35139 58 ==> 52520(ms)
rcu: (t=10503 jiffies g=40633 q=1053 ncpus=2)
CPU: 1 PID: 11171 Comm: syz.2.1608 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:seqcount_lockdep_reader_access+0x19a/0x1d0 include/linux/seqlock.h:105
Code: 00 4d 85 e4 75 16 e8 85 c6 0f 00 eb 15 e8 7e c6 0f 00 e8 99 ab 0e 09 4d 85 e4 74 ea e8 6f c6 0f 00 fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 3e 00 00 00 00 43 c7 44 3e 08 00 00 00 00 65 48 8b 04 25
RSP: 0018:ffffc900001f02a0 EFLAGS: 00000246
RAX: ffffffff817759b1 RBX: 0000000000000000 RCX: ffff88802bbe3c00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900001f0358 R08: ffffffff911c35c7 R09: 1ffffffff22386b8
R10: dffffc0000000000 R11: fffffbfff22386b9 R12: 0000000000000200
R13: 000001fb63109b96 R14: 1ffff9200003e054 R15: dffffc0000000000
FS: 00007f201bf8b6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2d27cc CR3: 000000005cc1f000 CR4: 00000000003506e0
DR0: 0000200000000300 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
ktime_get_with_offset+0x94/0x330 kernel/time/timekeeping.c:889
ktime_get_real include/linux/timekeeping.h:79 [inline]
net_timestamp_set net/core/dev.c:2207 [inline]
dev_queue_xmit_nit+0x8ce/0xbb0 net/core/dev.c:2357
xmit_one net/core/dev.c:3628 [inline]
dev_hard_start_xmit+0x148/0x740 net/core/dev.c:3648
sch_direct_xmit+0x25e/0x4c0 net/sched/sch_generic.c:345
__dev_xmit_skb net/core/dev.c:3869 [inline]
__dev_queue_xmit+0x165d/0x3660 net/core/dev.c:4404
NF_HOOK+0x331/0x3b0 include/linux/netfilter.h:-1
arp_xmit+0x16c/0x270 net/ipv4/arp.c:664
arp_solicit+0xc05/0xe40 net/ipv4/arp.c:392
neigh_probe net/core/neighbour.c:1080 [inline]
neigh_timer_handler+0xaad/0xff0 net/core/neighbour.c:1162
call_timer_fn+0x189/0x540 kernel/time/timer.c:1701
expire_timers kernel/time/timer.c:1752 [inline]
__run_timers+0x542/0x800 kernel/time/timer.c:2023
run_timer_softirq+0x67/0xf0 kernel/time/timer.c:2036
handle_softirqs+0x280/0x820 kernel/softirq.c:578
__do_softirq kernel/softirq.c:612 [inline]
invoke_softirq kernel/softirq.c:452 [inline]
__irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661
irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline]
sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:generic_exec_single+0x481/0x4f0 kernel/smp.c:418
Code: 75 11 e8 42 05 0b 00 48 85 db 75 16 e8 38 05 0b 00 eb 15 e8 31 05 0b 00 e8 4c ea 09 09 48 85 db 74 ea e8 22 05 0b 00 fb 31 c0 <48> c7 44 24 20 0e 36 e0 45 4b c7 04 2c 00 00 00 00 43 c7 44 2c 08
RSP: 0018:ffffc9000ca1f860 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000200 RCX: 0000000000080000
RDX: ffffc9000d19a000 RSI: 0000000000000e3a RDI: 0000000000000e3b
RBP: ffffc9000ca1f930 R08: ffffffff911c35ff R09: 1ffffffff22386bf
R10: dffffc0000000000 R11: fffffbfff22386c0 R12: 1ffff92001943f10
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92001943f31
smp_call_function_single+0x36d/0x5a0 kernel/smp.c:647
task_function_call kernel/events/core.c:120 [inline]
event_function_call+0x359/0x650 kernel/events/core.c:305
_perf_event_period kernel/events/core.c:5904 [inline]
_perf_ioctl kernel/events/core.c:5973 [inline]
perf_ioctl+0x1fdc/0x24a0 kernel/events/core.c:6074
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:871 [inline]
__se_sys_ioctl+0xfd/0x170 fs/ioctl.c:857
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f201b19c819
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f201bf8b028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f201b415fa0 RCX: 00007f201b19c819
RDX: 0000200000000340 RSI: 0000000040082404 RDI: 0000000000000005
RBP: 00007f201b232c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f201b416038 R14: 00007f201b415fa0 R15: 00007fff55352b48