rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (1 GPs behind) idle=35ec/1/0x4000000000000000 softirq=46985/46986 fqs=0
rcu: (detected by 1, t=10505 jiffies, g=54993, q=364 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 29 Comm: kauditd Not tainted 6.13.0-syzkaller-07644-gc2da8b3f914f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:hlock_class kernel/locking/lockdep.c:230 [inline]
RIP: 0010:__lock_acquire+0xf34/0x2100 kernel/locking/lockdep.c:5224
Code: 24 20 00 4c 8b 74 24 18 0f 84 6b 03 00 00 48 8b 44 24 38 48 8d 58 f8 48 89 d8 48 c1 e8 03 0f b6 04 38 84 c0 0f 85 35 0f 00 00 <8b> 1b 81 e3 ff 1f 00 00 48 89 d8 48 c1 e8 06 48 8d 3c c5 40 38 2c
RSP: 0018:ffffc90000007a50 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffff88801d6c2928 RCX: 00000000001c2cbd
RDX: 000000002d2c0ffc RSI: 0000000048091cc7 RDI: dffffc0000000000
RBP: 35a08aec8a9222e9 R08: ffffffff942c384f R09: 1ffffffff2858709
R10: dffffc0000000000 R11: fffffbfff285870a R12: ffff88801d6c1e00
R13: ffff88801d6c1e00 R14: 1ffff11003ad852a R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2fbe7ff8 CR3: 000000000e738000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
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:1742 [inline]
__hrtimer_run_queues+0x670/0xd30 kernel/time/hrtimer.c:1802
hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1864
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 82 20 00 4c 8b 7c 24 10 4d 85 f6 75 07 e8 37 82 20 00 eb 06 e8 30 82 20 00 fb 48 8b 5c 24 18 <48> 8b 44 24 30 42 80 3c 28 00 74 08 48 89 df e8 d6 9e 84 00 4c 8b
RSP: 0018:ffffc90000a57780 EFLAGS: 00000293
RAX: ffffffff819ee5b0 RBX: ffffffff8f1752b8 RCX: ffff88801d6c1e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000a57930 R08: ffffffff819ee587 R09: 1ffffffff2858708
R10: dffffc0000000000 R11: fffffbfff2858709 R12: ffffffff8f175260
R13: dffffc0000000000 R14: 0000000000000200 R15: ffffc90000a57980
__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
kauditd_printk_skb kernel/audit.c:546 [inline]
kauditd_hold_skb+0x1be/0x210 kernel/audit.c:581
kauditd_send_queue+0x2b1/0x310 kernel/audit.c:766
kauditd_thread+0x74a/0x9b0 kernel/audit.c:890
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: rcu_preempt kthread starved for 10505 jiffies! g54993 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:25200 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5377 [inline]
__schedule+0x181a/0x4b90 kernel/sched/core.c:6764
__schedule_loop kernel/sched/core.c:6841 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6856
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: 12382 Comm: syz.0.1789 Not tainted 6.13.0-syzkaller-07644-gc2da8b3f914f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
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 90 e8 0b 00 41 83 e4 01 4c 8b 64 24 68 75 07 e8 40 e4 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:ffffc900102a7a40 EFLAGS: 00000246
RAX: ffffffff81b383c5 RBX: 1ffff110170c8c65 RCX: 0000000000080000
RDX: ffffc90004cf2000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc900102a7c30 R08: ffffffff81b38390 R09: 1ffffffff2034c2e
R10: dffffc0000000000 R11: ffffffff816941e0 R12: ffff8880b873f948
R13: ffff8880b8646328 R14: ffff8880b873f940 R15: 0000000000000000
FS: 00007f69d9bac6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f51455cd000 CR3: 000000007ecb4000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
clock_was_set+0x75c/0x810 kernel/time/hrtimer.c:963
do_settimeofday64+0x343/0x5e0 kernel/time/timekeeping.c:1381
__do_sys_clock_settime kernel/time/posix-timers.c:1135 [inline]
__se_sys_clock_settime kernel/time/posix-timers.c:1119 [inline]
__x64_sys_clock_settime+0x23a/0x280 kernel/time/posix-timers.c:1119
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: 0033:0x7f69d8d8cd29
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:00007f69d9bac038 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3
RAX: ffffffffffffffda RBX: 00007f69d8fa5fa0 RCX: 00007f69d8d8cd29
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000000
RBP: 00007f69d8e0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f69d8fa5fa0 R15: 00007fff90ee9708
watchdog: BUG: soft lockup - CPU#1 stuck for 245s! [syz.0.1789:12382]
Modules linked in:
irq event stamp: 835300
hardirqs last enabled at (835299): [] irqentry_exit+0x63/0x90 kernel/entry/common.c:357
hardirqs last disabled at (835300): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049
softirqs last enabled at (835298): [] __do_softirq kernel/softirq.c:595 [inline]
softirqs last enabled at (835298): [] invoke_softirq kernel/softirq.c:435 [inline]
softirqs last enabled at (835298): [] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662
softirqs last disabled at (835223): [] __do_softirq kernel/softirq.c:595 [inline]
softirqs last disabled at (835223): [] invoke_softirq kernel/softirq.c:435 [inline]
softirqs last disabled at (835223): [] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662
CPU: 1 UID: 0 PID: 12382 Comm: syz.0.1789 Not tainted 6.13.0-syzkaller-07644-gc2da8b3f914f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
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 90 e8 0b 00 41 83 e4 01 4c 8b 64 24 68 75 07 e8 40 e4 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:ffffc900102a7a40 EFLAGS: 00000246
RAX: ffffffff81b383c5 RBX: 1ffff110170c8c65 RCX: 0000000000080000
RDX: ffffc90004cf2000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc900102a7c30 R08: ffffffff81b38390 R09: 1ffffffff2034c2e
R10: dffffc0000000000 R11: ffffffff816941e0 R12: ffff8880b873f948
R13: ffff8880b8646328 R14: ffff8880b873f940 R15: 0000000000000000
FS: 00007f69d9bac6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f51455cd000 CR3: 000000007ecb4000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
clock_was_set+0x75c/0x810 kernel/time/hrtimer.c:963
do_settimeofday64+0x343/0x5e0 kernel/time/timekeeping.c:1381
__do_sys_clock_settime kernel/time/posix-timers.c:1135 [inline]
__se_sys_clock_settime kernel/time/posix-timers.c:1119 [inline]
__x64_sys_clock_settime+0x23a/0x280 kernel/time/posix-timers.c:1119
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: 0033:0x7f69d8d8cd29
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:00007f69d9bac038 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3
RAX: ffffffffffffffda RBX: 00007f69d8fa5fa0 RCX: 00007f69d8d8cd29
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000000
RBP: 00007f69d8e0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f69d8fa5fa0 R15: 00007fff90ee9708
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 29 Comm: kauditd Not tainted 6.13.0-syzkaller-07644-gc2da8b3f914f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:variable_test_bit arch/x86/include/asm/bitops.h:227 [inline]
RIP: 0010:arch_test_bit arch/x86/include/asm/bitops.h:239 [inline]
RIP: 0010:_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:142 [inline]
RIP: 0010:cpumask_test_cpu include/linux/cpumask.h:570 [inline]
RIP: 0010:cpu_online include/linux/cpumask.h:1117 [inline]
RIP: 0010:trace_hrtimer_start include/trace/events/timer.h:222 [inline]
RIP: 0010:debug_activate kernel/time/hrtimer.c:470 [inline]
RIP: 0010:enqueue_hrtimer+0x80/0x3c0 kernel/time/hrtimer.c:1075
Code: e8 e5 6e 12 00 89 eb 48 89 d8 48 c1 e8 06 48 8d 3c c5 70 61 1a 90 be 08 00 00 00 e8 fa 8d 76 00 31 ed 48 0f a3 1d 50 68 6d 0e <0f> 92 c3 40 0f 92 c5 bf 02 00 00 00 89 ee e8 ad 71 12 00 31 ff 89
RSP: 0018:ffffc90000007d08 EFLAGS: 00000047
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff81acf916
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff901a6170
RBP: 0000000000000000 R08: ffffffff901a6177 R09: 1ffffffff2034c2e
R10: dffffc0000000000 R11: fffffbfff2034c2f R12: dffffc0000000000
R13: ffff8880b862c600 R14: ffff88805c95e340 R15: ffff8880b862c500
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2fbe7ff8 CR3: 000000000e738000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__run_hrtimer kernel/time/hrtimer.c:1755 [inline]
__hrtimer_run_queues+0x6cb/0xd30 kernel/time/hrtimer.c:1802
hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1864
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 82 20 00 4c 8b 7c 24 10 4d 85 f6 75 07 e8 37 82 20 00 eb 06 e8 30 82 20 00 fb 48 8b 5c 24 18 <48> 8b 44 24 30 42 80 3c 28 00 74 08 48 89 df e8 d6 9e 84 00 4c 8b
RSP: 0018:ffffc90000a57780 EFLAGS: 00000293
RAX: ffffffff819ee5b0 RBX: ffffffff8f1752b8 RCX: ffff88801d6c1e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000a57930 R08: ffffffff819ee587 R09: 1ffffffff2858708
R10: dffffc0000000000 R11: fffffbfff2858709 R12: ffffffff8f175260
R13: dffffc0000000000 R14: 0000000000000200 R15: ffffc90000a57980
__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
kauditd_printk_skb kernel/audit.c:546 [inline]
kauditd_hold_skb+0x1be/0x210 kernel/audit.c:581
kauditd_send_queue+0x2b1/0x310 kernel/audit.c:766
kauditd_thread+0x74a/0x9b0 kernel/audit.c:890
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