rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...!: (1 GPs behind) idle=d9dc/1/0x4000000000000000 softirq=63625/63626 fqs=1
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P17842/1:b..l
rcu: (detected by 0, t=10502 jiffies, g=67513, q=291 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 29 Comm: kauditd Not tainted 6.13.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:debug_object_activate+0x9f/0x580 lib/debugobjects.c:806
Code: 09 f3 f3 f3 f3 66 43 c7 44 35 0d f3 f3 43 c6 44 35 0f f3 48 8d 5c 24 70 ba 10 00 00 00 4c 89 e7 31 f6 e8 14 b8 39 fd 48 89 d8 <48> c1 e8 03 48 89 44 24 38 42 0f b6 04 30 84 c0 0f 85 12 04 00 00
RSP: 0018:ffffc90000a18be0 EFLAGS: 00000002
RAX: ffffc90000a18c50 RBX: ffffc90000a18c50 RCX: 0000000000000000
RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffffc90000a18c50
RBP: ffffc90000a18cf8 R08: ffffc90000a18c4f R09: ffffc90000a18c40
R10: dffffc0000000000 R11: fffff5200014318a R12: ffffc90000a18c40
R13: 1ffff92000143184 R14: dffffc0000000000 R15: ffff888059818340
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020003c80 CR3: 0000000058406000 CR4: 0000000000350ef0
Call Trace:
debug_hrtimer_activate kernel/time/hrtimer.c:428 [inline]
debug_activate kernel/time/hrtimer.c:469 [inline]
enqueue_hrtimer+0x30/0x3c0 kernel/time/hrtimer.c:1076
__run_hrtimer kernel/time/hrtimer.c:1756 [inline]
__hrtimer_run_queues+0x6cb/0xd30 kernel/time/hrtimer.c:1803
hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1865
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
__sysvec_apic_timer_interrupt+0x112/0x420 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 16 af 20 00 4c 8b 7c 24 10 4d 85 f6 75 07 e8 07 af 20 00 eb 06 e8 00 af 20 00 fb 48 8b 5c 24 18 <48> 8b 44 24 30 42 80 3c 28 00 74 08 48 89 df e8 b6 96 8b 00 4c 8b
RSP: 0018:ffffc90000a57820 EFLAGS: 00000293
RAX: ffffffff817ec320 RBX: ffffffff8f172418 RCX: ffff88801d690000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000a579d0 R08: ffffffff817ec2f7 R09: 1ffffffff2857110
R10: dffffc0000000000 R11: fffffbfff2857111 R12: ffffffff8f1723c0
R13: dffffc0000000000 R14: 0000000000000200 R15: ffffc90000a57a20
__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+0x2b3/0x310 kernel/audit.c:766
kauditd_thread+0x74a/0x9b0 kernel/audit.c:890
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
task:syz.1.4027 state:R running task stack:23840 pid:17842 tgid:17841 ppid:5838 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7078
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:rcu_read_lock_held_common kernel/rcu/update.c:109 [inline]
RIP: 0010:rcu_read_lock_held+0x15/0x50 kernel/rcu/update.c:349
Code: 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 53 e8 46 87 4c 0a 85 c0 74 26 31 db e8 bb 3e 01 00 <84> c0 74 20 e8 52 9b 01 00 84 c0 74 17 48 c7 c7 a0 7a 93 8e be ff
RSP: 0018:ffffc90003c8f298 EFLAGS: 00000212
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffff88801cb90000
RDX: ffffc9000cdda000 RSI: ffffffff8c5f62c0 RDI: ffffffff8c5f6280
RBP: 0000000000000140 R08: ffffffff8216e82e R09: 1ffffffff2857110
R10: dffffc0000000000 R11: fffffbfff2857111 R12: 00000000000529ae
R13: 0000000000000001 R14: ffffffff8216e760 R15: ffff88801bf00000
lookup_page_ext mm/page_ext.c:254 [inline]
page_ext_get+0x192/0x2a0 mm/page_ext.c:526
__page_table_check_zero+0xb1/0x350 mm/page_table_check.c:148
page_table_check_alloc include/linux/page_table_check.h:33 [inline]
post_alloc_hook+0x206/0x230 mm/page_alloc.c:1557
prep_new_page mm/page_alloc.c:1564 [inline]
get_page_from_freelist+0x365c/0x37a0 mm/page_alloc.c:3474
__alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265
folio_alloc_mpol_noprof+0x36/0x50 mm/mempolicy.c:2283
shmem_alloc_folio mm/shmem.c:1794 [inline]
shmem_alloc_and_add_folio+0x49b/0x13d0 mm/shmem.c:1833
shmem_get_folio_gfp+0x5a9/0x20a0 mm/shmem.c:2355
shmem_get_folio mm/shmem.c:2461 [inline]
shmem_write_begin+0x17e/0x460 mm/shmem.c:3117
generic_perform_write+0x346/0x6d0 mm/filemap.c:4055
shmem_file_write_iter+0xf9/0x120 mm/shmem.c:3293
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xaed/0xd30 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
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: 0033:0x7fcee157f2ff
RSP: 002b:00007fcedf3f5e10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000200000 RCX: 00007fcee157f2ff
RDX: 0000000000200000 RSI: 00007fced6e00000 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000da0
R10: 00000000000007d0 R11: 0000000000000293 R12: 0000000000000003
R13: 00007fcedf3f5f10 R14: 00007fcedf3f5ed0 R15: 00007fced6e00000
rcu: rcu_preempt kthread starved for 10500 jiffies! g67513 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:26264 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247
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: 53 Comm: kworker/u8:3 Not tainted 6.13.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:get_current arch/x86/include/asm/current.h:49 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x70 kernel/kcov.c:216
Code: 8b 3d 84 90 8e 0c 48 89 de 5b e9 d3 cd 5e 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0c 25 00 d6 03 00 65 8b 15 d0 63 64 7e 81 e2 00 01 ff 00
RSP: 0018:ffffc90000bd76d8 EFLAGS: 00000202
RAX: ffffffff81938d2b RBX: 1ffff110170e88e9 RCX: ffff888020685a00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90000bd78e0 R08: ffffffff81938cfa R09: 1ffffffff2857110
R10: dffffc0000000000 R11: fffffbfff2857111 R12: dffffc0000000000
R13: ffff8880b8744748 R14: ffff8880b863fac0 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc714b5f2c CR3: 000000000e736000 CR4: 0000000000350ef0
Call Trace:
csd_lock_wait kernel/smp.c:340 [inline]
smp_call_function_many_cond+0x1a0b/0x2c60 kernel/smp.c:884
on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1051
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:2114 [inline]
text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2324
text_poke_flush arch/x86/kernel/alternative.c:2515 [inline]
text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2522
arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
static_key_enable_cpuslocked+0x136/0x260 kernel/jump_label.c:210
static_key_enable+0x1a/0x20 kernel/jump_label.c:223
toggle_allocation_gate+0xbc/0x260 mm/kfence/core.c:849
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa68/0x1840 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
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
watchdog: BUG: soft lockup - CPU#0 stuck for 263s! [kworker/u8:3:53]
Modules linked in:
irq event stamp: 16824810
hardirqs last enabled at (16824809): [] irqentry_exit+0x63/0x90 kernel/entry/common.c:357
hardirqs last disabled at (16824810): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049
softirqs last enabled at (16824804): [] __do_softirq kernel/softirq.c:588 [inline]
softirqs last enabled at (16824804): [] invoke_softirq kernel/softirq.c:428 [inline]
softirqs last enabled at (16824804): [] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:655
softirqs last disabled at (16824773): [] __do_softirq kernel/softirq.c:588 [inline]
softirqs last disabled at (16824773): [] invoke_softirq kernel/softirq.c:428 [inline]
softirqs last disabled at (16824773): [] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:655
CPU: 0 UID: 0 PID: 53 Comm: kworker/u8:3 Not tainted 6.13.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline]
RIP: 0010:smp_call_function_many_cond+0x19f3/0x2c60 kernel/smp.c:884
Code: 45 8b 65 00 44 89 e6 83 e6 01 31 ff e8 66 e9 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 11 e5 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 f5 e4
RSP: 0018:ffffc90000bd76e0 EFLAGS: 00000293
RAX: ffffffff81938d2b RBX: 1ffff110170e88e9 RCX: ffff888020685a00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90000bd78e0 R08: ffffffff81938cfa R09: 1ffffffff2857110
R10: dffffc0000000000 R11: fffffbfff2857111 R12: dffffc0000000000
R13: ffff8880b8744748 R14: ffff8880b863fac0 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc714b5f2c CR3: 000000000e736000 CR4: 0000000000350ef0
Call Trace:
on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1051
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:2114 [inline]
text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2324
text_poke_flush arch/x86/kernel/alternative.c:2515 [inline]
text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2522
arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
static_key_enable_cpuslocked+0x136/0x260 kernel/jump_label.c:210
static_key_enable+0x1a/0x20 kernel/jump_label.c:223
toggle_allocation_gate+0xbc/0x260 mm/kfence/core.c:849
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa68/0x1840 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
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
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 29 Comm: kauditd Not tainted 6.13.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:debug_object_deactivate+0x146/0x390 lib/debugobjects.c:873
Code: 0f 85 52 01 00 00 4c 89 e8 48 c1 e8 0c 48 b9 eb 83 b5 80 46 86 c8 61 48 0f af c8 48 c1 e9 2f 83 e1 f8 48 8d 9c c9 c0 8a 58 9a <48> 8d bc c9 c8 8a 58 9a 48 89 7c 24 10 e8 68 5b 02 07 48 89 44 24
RSP: 0018:ffffc90000a18c20 EFLAGS: 00000006
RAX: 000ffff888059818 RBX: ffffffff9a620dd0 RCX: 0000000000010e90
RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffffc90000a18c80
RBP: ffffc90000a18d10 R08: ffffc90000a18c6f R09: ffffc90000a18c60
R10: dffffc0000000000 R11: fffff5200014318e R12: ffffc90000a18c60
R13: ffff888059818340 R14: dffffc0000000000 R15: 1ffff92000143188
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020003c80 CR3: 0000000058406000 CR4: 0000000000350ef0
Call Trace:
debug_hrtimer_deactivate kernel/time/hrtimer.c:433 [inline]
debug_deactivate+0x1b/0x220 kernel/time/hrtimer.c:475
__run_hrtimer kernel/time/hrtimer.c:1707 [inline]
__hrtimer_run_queues+0x305/0xd30 kernel/time/hrtimer.c:1803
hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1865
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
__sysvec_apic_timer_interrupt+0x112/0x420 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 16 af 20 00 4c 8b 7c 24 10 4d 85 f6 75 07 e8 07 af 20 00 eb 06 e8 00 af 20 00 fb 48 8b 5c 24 18 <48> 8b 44 24 30 42 80 3c 28 00 74 08 48 89 df e8 b6 96 8b 00 4c 8b
RSP: 0018:ffffc90000a57820 EFLAGS: 00000293
RAX: ffffffff817ec320 RBX: ffffffff8f172418 RCX: ffff88801d690000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000a579d0 R08: ffffffff817ec2f7 R09: 1ffffffff2857110
R10: dffffc0000000000 R11: fffffbfff2857111 R12: ffffffff8f1723c0
R13: dffffc0000000000 R14: 0000000000000200 R15: ffffc90000a57a20
__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+0x2b3/0x310 kernel/audit.c:766
kauditd_thread+0x74a/0x9b0 kernel/audit.c:890
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