rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...!: (1 GPs behind) idle=0dd4/1/0x4000000000000000 softirq=22953/22954 fqs=0
rcu: (detected by 0, t=10502 jiffies, g=34557, q=186 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 9068 Comm: syz.5.1389 Not tainted 6.11.0-rc6-syzkaller-00183-gb831f83e40a2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:hlock_class kernel/locking/lockdep.c:222 [inline]
RIP: 0010:__lock_acquire+0xf0b/0x2040 kernel/locking/lockdep.c:5138
Code: 83 3d 88 c1 a8 0e 00 0f 85 77 04 00 00 48 83 7c 24 28 00 4c 8b 74 24 20 0f 84 65 03 00 00 48 8b 44 24 40 48 8d 58 f8 48 89 d8 <48> c1 e8 03 0f b6 04 38 84 c0 0f 85 bc 0e 00 00 8b 1b 81 e3 ff 1f
RSP: 0018:ffffc90000a18a30 EFLAGS: 00000002
RAX: ffff888034418b00 RBX: ffff888034418b00 RCX: 000000001058aa7d
RDX: 00000000fae9315e RSI: 000000001b5d732a RDI: dffffc0000000000
RBP: 58cce5e7c8d5ebdc R08: ffffffff941e4847 R09: 1ffffffff283c908
R10: dffffc0000000000 R11: fffffbfff283c909 R12: 0000000000000001
R13: ffff888034418ad8 R14: 1ffff11006883165 R15: ffff888034418b28
FS: 00007f908911d6c0(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c29e7eb CR3: 000000005afa8000 CR4: 0000000000350ef0
Call Trace:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759
rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
rcu_read_lock include/linux/rcupdate.h:838 [inline]
advance_sched+0xa1e/0xca0 net/sched/sch_taprio.c:985
__run_hrtimer kernel/time/hrtimer.c:1689 [inline]
__hrtimer_run_queues+0x59d/0xd50 kernel/time/hrtimer.c:1753
hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1815
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
__sysvec_apic_timer_interrupt+0x112/0x3f0 arch/x86/kernel/apic/apic.c:1049
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 de 1a 37 f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 23 48 9f f5 65 8b 05 f4 1d 40 74 85 c0 74 43 48 c7 04 24 0e 36
RSP: 0018:ffffc9000349f920 EFLAGS: 00000206
RAX: 8633eba31790d700 RBX: 1ffff92000693f28 RCX: ffffffff81703fea
RDX: dffffc0000000000 RSI: ffffffff8c0ad560 RDI: 0000000000000001
RBP: ffffc9000349f9b0 R08: ffffffff941e4847 R09: 1ffffffff283c908
R10: dffffc0000000000 R11: fffffbfff283c909 R12: dffffc0000000000
R13: 1ffff92000693f24 R14: ffffc9000349f940 R15: 0000000000000246
clock_was_set+0x686/0x810 kernel/time/hrtimer.c:968
timekeeping_inject_offset+0x4e8/0x580 kernel/time/timekeeping.c:1524
do_adjtimex+0x515/0xab0 kernel/time/timekeeping.c:2574
do_clock_adjtime kernel/time/posix-timers.c:1159 [inline]
__do_sys_clock_adjtime kernel/time/posix-timers.c:1171 [inline]
__se_sys_clock_adjtime kernel/time/posix-timers.c:1162 [inline]
__x64_sys_clock_adjtime+0x1e3/0x290 kernel/time/posix-timers.c:1162
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: 0033:0x7f908837cef9
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:00007f908911d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000131
RAX: ffffffffffffffda RBX: 00007f9088535f80 RCX: 00007f908837cef9
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007f90883ef01e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f9088535f80 R15: 00007ffeaf0ef4e8
rcu: rcu_preempt kthread starved for 10502 jiffies! g34557 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
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:26448 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2034
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2236
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 9066 Comm: syz.0.1388 Not tainted 6.11.0-rc6-syzkaller-00183-gb831f83e40a2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:__sanitizer_cov_trace_pc+0x53/0x70 kernel/kcov.c:222
Code: b9 1c 16 00 00 00 74 2c 8b 91 f8 15 00 00 83 fa 02 75 21 48 8b 91 00 16 00 00 48 8b 32 48 8d 7e 01 8b 89 fc 15 00 00 48 39 cf <73> 08 48 89 3a 48 89 44 f2 08 e9 f9 b3 5c 0a 66 2e 0f 1f 84 00 00
RSP: 0018:ffffc90004417398 EFLAGS: 00000246
RAX: ffffffff818778e8 RBX: 1ffff110171288f1 RCX: 0000000000040000
RDX: ffffc9001882a000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc90004417580 R08: ffffffff818778b7 R09: 1ffffffff283c908
R10: dffffc0000000000 R11: fffffbfff283c909 R12: dffffc0000000000
R13: ffff8880b8944788 R14: ffff8880b883fb40 R15: 0000000000000001
FS: 00007fab746566c0(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f77bdefc178 CR3: 0000000028d86000 CR4: 0000000000350ef0
Call Trace:
csd_lock_wait kernel/smp.c:312 [inline]
smp_call_function_many_cond+0x1878/0x29d0 kernel/smp.c:856
on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1023
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:2085 [inline]
text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2295
text_poke_bp+0xb0/0x100 arch/x86/kernel/alternative.c:2522
__static_call_transform+0x51a/0x810 arch/x86/kernel/static_call.c:111
arch_static_call_transform+0x141/0x380 arch/x86/kernel/static_call.c:163
__static_call_update+0xd8/0x5e0 kernel/static_call_inline.c:147
tracepoint_update_call kernel/tracepoint.c:317 [inline]
tracepoint_add_func+0x918/0x9e0 kernel/tracepoint.c:358
tracepoint_probe_register_prio kernel/tracepoint.c:511 [inline]
tracepoint_probe_register+0x105/0x160 kernel/tracepoint.c:531
register_trace_block_rq_insert include/trace/events/block.h:238 [inline]
blk_register_tracepoints kernel/trace/blktrace.c:1094 [inline]
get_probe_ref+0x4f/0x400 kernel/trace/blktrace.c:337
do_blk_trace_setup+0x7eb/0x9b0 kernel/trace/blktrace.c:611
__blk_trace_setup kernel/trace/blktrace.c:630 [inline]
blk_trace_ioctl+0x359/0x9a0 kernel/trace/blktrace.c:740
blkdev_ioctl+0x40f/0x6b0 block/ioctl.c:665
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl+0xfe/0x170 fs/ioctl.c:893
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: 0033:0x7fab7377cef9
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:00007fab74656038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fab73935f80 RCX: 00007fab7377cef9
RDX: 0000000020000180 RSI: 00000000c0481273 RDI: 0000000000000003
RBP: 00007fab737ef01e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fab73935f80 R15: 00007ffc493269e8