rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (0 ticks this GP) idle=2d8c/1/0x4000000000000000 softirq=100766/100767 fqs=0
rcu: (detected by 1, t=10506 jiffies, g=158849, q=111 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4486 Comm: udevd Not tainted 6.6.0-rc3-syzkaller-00044-g633b47cb009d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:32 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:67 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:103 [inline]
RIP: 0010:__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline]
RIP: 0010:_raw_spin_lock_irqsave+0x92/0x120 kernel/locking/spinlock.c:162
Code: 00 4c 89 e3 48 c1 eb 03 42 80 3c 3b 00 74 08 4c 89 e7 e8 61 aa 10 f7 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 42 80 3c 3b 00 <74> 08 4c 89 e7 e8 a4 a9 10 f7 4c 8b 64 24 20 fa 41 f7 c4 00 02 00
RSP: 0018:ffffc90000007c60 EFLAGS: 00000046
RAX: f3f3f300f1f1f1f1 RBX: 1ffff92000000f90 RCX: 000000000001f4e8
RDX: 0000000080010001 RSI: ffffffff8b0c9620 RDI: ffffffff921b8c70
RBP: ffffc90000007ce8 R08: ffffffff817d2900 R09: 0000000000000000
R10: ffff88802769a340 R11: ffffed1004ed346b R12: ffffc90000007c80
R13: 1ffff92000000f8c R14: ffffffff921b8c70 R15: dffffc0000000000
FS: 00007f0ab588ec80(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555555c20938 CR3: 000000002806b000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
debug_object_deactivate+0x65/0x2b0 lib/debugobjects.c:783
debug_hrtimer_deactivate kernel/time/hrtimer.c:427 [inline]
debug_deactivate+0x1b/0x1f0 kernel/time/hrtimer.c:483
__run_hrtimer kernel/time/hrtimer.c:1656 [inline]
__hrtimer_run_queues+0x321/0xd10 kernel/time/hrtimer.c:1752
hrtimer_interrupt+0x396/0x980 kernel/time/hrtimer.c:1814
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1063 [inline]
__sysvec_apic_timer_interrupt+0x104/0x390 arch/x86/kernel/apic/apic.c:1080
sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1074
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:__syscall_enter_from_user_work kernel/entry/common.c:91 [inline]
RIP: 0010:syscall_enter_from_user_mode+0x3b/0x230 kernel/entry/common.c:112
Code: 49 89 fe 48 8b 7c 24 30 e8 e2 fa ff ff 0f 1f 44 00 00 0f 1f 44 00 00 e8 93 88 c7 f6 e8 4e 88 c7 f6 fb 65 4c 8b 3d c5 64 36 75 <49> 8b 6f 08 40 f6 c5 3f 0f 84 b5 00 00 00 40 f6 c5 20 74 17 4c 89
RSP: 0018:ffffc9000319fef8 EFLAGS: 00000282
RAX: 3727cc19f110d200 RBX: 0000000000000106 RCX: ffffffff91ef3303
RDX: dffffc0000000000 RSI: ffffffff8b0aa420 RDI: ffffffff8b599aa0
RBP: ffffc9000319ff48 R08: ffffffff8e9a78ef R09: 1ffffffff1d34f1d
R10: dffffc0000000000 R11: fffffbfff1d34f1e R12: 0000000000000000
R13: 0000000000000000 R14: ffffc9000319ff58 R15: ffff88807d56d940
do_syscall_64+0x22/0xc0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0ab59645f4
Code: 64 c7 00 09 00 00 00 83 c8 ff c3 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 00 00 00 00 41 89 ca b8 06 01 00 00 0f 05 <45> 31 c0 3d 00 f0 ff ff 76 10 48 8b 15 03 a8 0d 00 f7 d8 41 83 c8
RSP: 002b:00007ffe0f4985f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 000056417b1d76e0 RCX: 00007f0ab59645f4
RDX: 00007ffe0f498608 RSI: 000056417b1c7897 RDI: 00000000ffffff9c
RBP: 000056417c935fb8 R08: 0005f9c4183b50c0 R09: 00007ffe0f54e0b0
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 0005f9c4183b50c0 R15: 000056417b1cbdca
rcu: rcu_preempt kthread starved for 10506 jiffies! g158849 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:25672 pid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x196c/0x4af0 kernel/sched/core.c:6695
schedule+0xc3/0x180 kernel/sched/core.c:6771
schedule_timeout+0x1bd/0x300 kernel/time/timer.c:2167
rcu_gp_fqs_loop+0x2c6/0x1010 kernel/rcu/tree.c:1613
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:1812
kthread+0x2d3/0x370 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 2086 Comm: syz-executor.0 Not tainted 6.6.0-rc3-syzkaller-00044-g633b47cb009d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:csd_lock_wait kernel/smp.c:300 [inline]
RIP: 0010:smp_call_function_many_cond+0x1805/0x2890 kernel/smp.c:844
Code: 45 8b 65 00 44 89 e6 83 e6 01 31 ff e8 34 59 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 6f 55 0b 00 eb 38 f3 90 <42> 0f b6 04 23 84 c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 53 55
RSP: 0018:ffffc9001ee577a0 EFLAGS: 00000246
RAX: ffffffff8182b51d RBX: 1ffff110173087b9 RCX: 0000000000040000
RDX: ffffc90003ae1000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc9001ee57990 R08: ffffffff8182b4ec R09: 1ffffffff1d34f1d
R10: dffffc0000000000 R11: fffffbfff1d34f1e R12: dffffc0000000000
R13: ffff8880b9843dc8 R14: ffff8880b993d440 R15: 0000000000000000
FS: 00007f0bbdaa66c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0bbdaa5c98 CR3: 000000002a439000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
clock_was_set+0x779/0x830 kernel/time/hrtimer.c:976
timekeeping_inject_offset+0x663/0x710 kernel/time/timekeeping.c:1395
do_adjtimex+0x515/0xab0 kernel/time/timekeeping.c:2444
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+0x1e0/0x290 kernel/time/posix-timers.c:1162
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0bbcc7cae9
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:00007f0bbdaa60c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000131
RAX: ffffffffffffffda RBX: 00007f0bbcd9bf80 RCX: 00007f0bbcc7cae9
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007f0bbccc847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f0bbcd9bf80 R15: 00007fffe26ab2a8