rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (1 GPs behind) idle=2884/1/0x4000000000000000 softirq=128513/128514 fqs=36
rcu: (detected by 1, t=10502 jiffies, g=208901, q=322 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 29764 Comm: syz-executor.0 Not tainted 6.9.0-rc6-syzkaller-00131-gf03359bca01b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:26 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:67 [inline]
RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:127 [inline]
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x2b/0x80 kernel/locking/spinlock.c:194
Code: 0f 1e fa 55 48 89 f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 66 b1 8c f6 48 89 df e8 be 2d 8d f6 f7 c5 00 02 00 00 75 23 9c <58> f6 c4 02 75 37 bf 01 00 00 00 e8 a5 68 7e f6 65 8b 05 66 a8 24
RSP: 0018:ffffc90000007d20 EFLAGS: 00000046
RAX: 0000000000000001 RBX: ffffffff94889310 RCX: ffffffff816c5d13
RDX: dffffc0000000000 RSI: 0000000000000004 RDI: ffffffff94889310
RBP: 0000000000000006 R08: 0000000000000000 R09: fffffbfff2911262
R10: ffffffff94889313 R11: 0000000000000002 R12: 0000000000000003
R13: dffffc0000000000 R14: ffff888055639340 R15: 1ffff92000000faa
FS: 00007fb4ea1ff6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb4ea1ffd58 CR3: 000000007b3a6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
debug_object_deactivate+0x1f0/0x370 lib/debugobjects.c:778
debug_hrtimer_deactivate kernel/time/hrtimer.c:428 [inline]
debug_deactivate kernel/time/hrtimer.c:484 [inline]
__run_hrtimer kernel/time/hrtimer.c:1660 [inline]
__hrtimer_run_queues+0x47d/0xcc0 kernel/time/hrtimer.c:1756
hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1818
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
__sysvec_apic_timer_interrupt+0x10f/0x450 arch/x86/kernel/apic/apic.c:1049
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0x90/0xb0 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+0x31/0x80 kernel/locking/spinlock.c:194
Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 66 b1 8c f6 48 89 df e8 be 2d 8d f6 f7 c5 00 02 00 00 75 23 9c 58 f6 c4 02 75 37 01 00 00 00 e8 a5 68 7e f6 65 8b 05 66 a8 24 75 85 c0 74 16 5b
RSP: 0018:ffffc90003617a28 EFLAGS: 00000246
RAX: 0000000000000006 RBX: ffff88805bfec488 RCX: 1ffffffff1f3e1a9
RDX: 0000000000000000 RSI: ffffffff8b0cae00 RDI: ffffffff8b6f55a0
RBP: 0000000000000287 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8f9f4fd7 R11: 0000000000000000 R12: dffffc0000000000
R13: 19a8cdfd5d5ecb4e R14: 17cbf7ad5d5ecb4e R15: ffff88805bfec488
spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
timerfd_clock_was_set+0x164/0x310 fs/timerfd.c:113
clock_was_set+0x67c/0x850 kernel/time/hrtimer.c:983
timekeeping_inject_offset+0x4d1/0x640 kernel/time/timekeeping.c:1396
do_adjtimex+0x373/0xaa0 kernel/time/timekeeping.c:2445
do_clock_adjtime kernel/time/posix-timers.c:1159 [inline]
__do_sys_clock_adjtime+0x173/0x290 kernel/time/posix-timers.c:1171
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb4ea67dd29
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb4ea1ff0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000131
RAX: ffffffffffffffda RBX: 00007fb4ea7ac050 RCX: 00007fb4ea67dd29
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007fb4ea6ca47e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fb4ea7ac050 R15: 00007ffd4e6cf3d8
rcu: rcu_preempt kthread starved for 10428 jiffies! g208901 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:27664 pid:16 tgid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6838
schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2582
rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:1663
rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:1862
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 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: 1 PID: 29761 Comm: syz-executor.0 Not tainted 6.9.0-rc6-syzkaller-00131-gf03359bca01b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:csd_lock_wait kernel/smp.c:311 [inline]
RIP: 0010:smp_call_function_many_cond+0x4ec/0x1420 kernel/smp.c:855
Code: 4d 48 b8 00 00 00 00 00 fc ff df 4d 89 f4 4c 89 f5 49 c1 ec 03 83 e5 07 49 01 c4 83 c5 03 e8 5b 07 0c 00 f3 90 41 0f b6 04 24 <40> 38 c5 7c 08 84 c0 0f 85 f7 0c 00 00 8b 43 08 31 ff 83 e0 01 41
RSP: 0018:ffffc900033df860 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffff8880b9446860 RCX: ffffffff8181befb
RDX: ffff88804c523c00 RSI: ffffffff8181bed5 RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 1ffffffff1af77d1 R12: ffffed1017288d0d
R13: 0000000000000001 R14: ffff8880b9446868 R15: ffff8880b953fc00
FS: 00005555862ca480(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555555ce938 CR3: 000000007b3a6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1023
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:2086 [inline]
text_poke_bp_batch+0x22b/0x760 arch/x86/kernel/alternative.c:2296
text_poke_bp+0xa3/0xd0 arch/x86/kernel/alternative.c:2523
__static_call_transform+0x34d/0x770 arch/x86/kernel/static_call.c:111
arch_static_call_transform+0x5d/0xb0 arch/x86/kernel/static_call.c:163
__static_call_update+0xee/0x660 kernel/static_call_inline.c:147
tracepoint_update_call kernel/tracepoint.c:317 [inline]
tracepoint_remove_func kernel/tracepoint.c:441 [inline]
tracepoint_probe_unregister+0xaaa/0xd30 kernel/tracepoint.c:551
bpf_raw_tp_link_release+0x55/0xa0 kernel/bpf/syscall.c:3511
bpf_link_free+0x12b/0x320 kernel/bpf/syscall.c:3052
bpf_link_put_direct kernel/bpf/syscall.c:3093 [inline]
bpf_link_release+0x63/0x80 kernel/bpf/syscall.c:3100
__fput+0x270/0xb80 fs/file_table.c:422
__fput_sync+0x47/0x50 fs/file_table.c:507
__do_sys_close fs/open.c:1556 [inline]
__se_sys_close fs/open.c:1541 [inline]
__x64_sys_close+0x86/0x100 fs/open.c:1541
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb4ea67cc1a
Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 03 7f 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 63 7f 02 00 8b 44 24
RSP: 002b:00007ffd4e6cf4a0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fb4ea67cc1a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007fb4ea7ad980 R08: 0000001b2c420000 R09: 00000000000000ec
R10: 0000000082103ce4 R11: 0000000000000293 R12: 0000000000166fd5
R13: 00007fb4ea7ac05c R14: 00007ffd4e6cf5a0 R15: 0000000000000032