rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
(detected by 0, t=10506 jiffies, g=167169, q=133 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10506 (4295099225-4295088719), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10506 jiffies! g167169 f0x2 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:28312 pid: 17 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0xa00/0x4b30 kernel/sched/core.c:6428
schedule+0xd2/0x1f0 kernel/sched/core.c:6500
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1935
rcu_gp_fqs_loop+0x186/0x810 kernel/rcu/tree.c:1999
rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2187
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3646 Comm: syz-executor.1 Not tainted 5.19.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:rcu_read_lock_sched_held+0x11/0x70 kernel/rcu/update.c:126
Code: 41 5c c3 45 31 e4 44 89 e0 41 5c c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 41 54 41 bc 01 00 00 00 e8 63 20 13 08 85 c0 75 06 <44> 89 e0 41 5c c3 e8 24 9c 00 00 84 c0 74 41 e8 8b b8 00 00 84 c0
RSP: 0018:ffffc900003f8c38 EFLAGS: 00000002
RAX: 0000000080010004 RBX: 0000000000000001 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000010004 RDI: 0000000000000000
RBP: 1ffff9200007f18b R08: 0000000000000000 R09: ffffffff8dbaced7
R10: fffffbfff1b759da R11: 0000000000000001 R12: 0000000000000001
R13: dffffc0000000000 R14: 1ffff9200007f1a7 R15: ffffffff89cec440
FS: 0000555555623400(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f28172d53a5 CR3: 0000000072ab6000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
trace_lock_release include/trace/events/lock.h:69 [inline]
lock_release+0x560/0x780 kernel/locking/lockdep.c:5676
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline]
_raw_spin_unlock_irqrestore+0x16/0x70 kernel/locking/spinlock.c:194
debug_object_activate+0x287/0x3e0 lib/debugobjects.c:686
debug_hrtimer_activate kernel/time/hrtimer.c:420 [inline]
debug_activate kernel/time/hrtimer.c:475 [inline]
enqueue_hrtimer+0x27/0x3e0 kernel/time/hrtimer.c:1084
__run_hrtimer kernel/time/hrtimer.c:1702 [inline]
__hrtimer_run_queues+0xb02/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:unwind_next_frame+0xd54/0x1cc0 arch/x86/kernel/unwind_orc.c:593
Code: c1 ea 03 48 c1 ee 03 0f b6 14 02 0f b6 04 06 4c 89 fe 83 e6 07 40 38 f2 40 0f 9e c6 84 d2 0f 95 c2 40 84 d6 0f 85 0d 0c 00 00 <83> e1 07 38 c8 0f 9e c2 84 c0 0f 95 c0 84 c2 0f 85 f8 0b 00 00 41
RSP: 0018:ffffc9000319f5c0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff8e37f2c1
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffc9000319f6d8
RBP: ffffc9000319f6c8 R08: ffffffff8e37f2bc R09: ffffc9000319f6b4
R10: fffff52000633edb R11: ffffc9000319f678 R12: ffffc9000319f6b5
R13: ffffc9000319f680 R14: ffffc9000319f680 R15: ffffffff8e37f2c0
__unwind_start+0x51b/0x800 arch/x86/kernel/unwind_orc.c:712
unwind_start arch/x86/include/asm/unwind.h:64 [inline]
arch_stack_walk+0x5c/0xe0 arch/x86/kernel/stacktrace.c:24
stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
kasan_set_track mm/kasan/common.c:45 [inline]
set_alloc_info mm/kasan/common.c:436 [inline]
____kasan_kmalloc mm/kasan/common.c:515 [inline]
____kasan_kmalloc mm/kasan/common.c:474 [inline]
__kasan_kmalloc+0xa6/0xd0 mm/kasan/common.c:524
kmalloc_node include/linux/slab.h:623 [inline]
__vmalloc_area_node mm/vmalloc.c:2981 [inline]
__vmalloc_node_range+0xa40/0x13e0 mm/vmalloc.c:3165
alloc_thread_stack_node kernel/fork.c:312 [inline]
dup_task_struct kernel/fork.c:977 [inline]
copy_process+0x156e/0x7020 kernel/fork.c:2071
kernel_clone+0xe7/0xab0 kernel/fork.c:2655
__do_sys_clone+0xba/0x100 kernel/fork.c:2789
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f28162876fb
Code: ed 0f 85 60 01 00 00 64 4c 8b 0c 25 10 00 00 00 45 31 c0 4d 8d 91 d0 02 00 00 31 d2 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 89 00 00 00 41 89 c5 85 c0 0f 85 90 00 00
RSP: 002b:00007ffeeebe7ad0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f28162876fb
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000555555623400
R10: 00005555556236d0 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffeeebe7bb0
watchdog: BUG: soft lockup - CPU#0 stuck for 246s! [kworker/u4:5:1087]
Modules linked in:
irq event stamp: 30193154
hardirqs last enabled at (30193153): [] asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:649
hardirqs last disabled at (30193154): [] sysvec_apic_timer_interrupt+0xb/0xc0 arch/x86/kernel/apic/apic.c:1106
softirqs last enabled at (30143982): [] invoke_softirq kernel/softirq.c:445 [inline]
softirqs last enabled at (30143982): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
softirqs last disabled at (30143883): [] invoke_softirq kernel/softirq.c:445 [inline]
softirqs last disabled at (30143883): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
CPU: 0 PID: 1087 Comm: kworker/u4:5 Not tainted 5.19.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:csd_lock_wait kernel/smp.c:414 [inline]
RIP: 0010:smp_call_function_many_cond+0x499/0x1110 kernel/smp.c:988
Code: 01 89 ee e8 99 97 0a 00 85 ed 74 47 48 8b 04 24 49 89 c4 83 e0 07 49 c1 ec 03 48 89 c5 4d 01 fc 83 c5 03 e8 39 9b 0a 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 21 0a 00 00 8b 43 08 31
RSP: 0018:ffffc9000494f950 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffff8880b9b3f760 RCX: 0000000000000000
RDX: ffff88802064c240 RSI: ffffffff816f07a7 RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffffed1017367eed
R13: 0000000000000001 R14: 0000000000000001 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555555c15708 CR3: 000000000ba8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
on_each_cpu_cond_mask+0x56/0xa0 kernel/smp.c:1154
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:1231 [inline]
text_poke_bp_batch+0x233/0x6c0 arch/x86/kernel/alternative.c:1419
text_poke_flush arch/x86/kernel/alternative.c:1589 [inline]
text_poke_flush arch/x86/kernel/alternative.c:1586 [inline]
text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1596
arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
jump_label_update+0x32f/0x410 kernel/jump_label.c:830
static_key_enable_cpuslocked+0x1b1/0x260 kernel/jump_label.c:177
static_key_enable+0x16/0x20 kernel/jump_label.c:190
toggle_allocation_gate mm/kfence/core.c:808 [inline]
toggle_allocation_gate+0x100/0x390 mm/kfence/core.c:800
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3646 Comm: syz-executor.1 Not tainted 5.19.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:debug_spin_unlock kernel/locking/spinlock_debug.c:102 [inline]
RIP: 0010:do_raw_spin_unlock+0xcc/0x230 kernel/locking/spinlock_debug.c:140
Code: 00 00 65 48 8b 04 25 80 6f 02 00 48 39 45 10 0f 85 d5 00 00 00 4c 8d 65 08 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e fb 00 00 00 65 8b 05 2d 1a a4
RSP: 0018:ffffc900003f8e08 EFLAGS: 00000802
RAX: dffffc0000000000 RBX: 0000000000000046 RCX: ffffffff815dff10
RDX: 1ffff110173654a1 RSI: 0000000000000004 RDI: ffff8880b9b2a500
RBP: ffff8880b9b2a500 R08: 0000000000000000 R09: ffff8880b9b2a503
R10: ffffed10173654a0 R11: 0000000000000001 R12: ffff8880b9b2a508
R13: ffff8880b9b2a510 R14: ffff8880b9b2a500 R15: ffffffff87889050
FS: 0000555555623400(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f28172d53a5 CR3: 0000000072ab6000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:150 [inline]
_raw_spin_unlock_irqrestore+0x1e/0x70 kernel/locking/spinlock.c:194
__run_hrtimer kernel/time/hrtimer.c:1681 [inline]
__hrtimer_run_queues+0x51a/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:unwind_next_frame+0xd54/0x1cc0 arch/x86/kernel/unwind_orc.c:593
Code: c1 ea 03 48 c1 ee 03 0f b6 14 02 0f b6 04 06 4c 89 fe 83 e6 07 40 38 f2 40 0f 9e c6 84 d2 0f 95 c2 40 84 d6 0f 85 0d 0c 00 00 <83> e1 07 38 c8 0f 9e c2 84 c0 0f 95 c0 84 c2 0f 85 f8 0b 00 00 41
RSP: 0018:ffffc9000319f5c0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff8e37f2c1
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffc9000319f6d8
RBP: ffffc9000319f6c8 R08: ffffffff8e37f2bc R09: ffffc9000319f6b4
R10: fffff52000633edb R11: ffffc9000319f678 R12: ffffc9000319f6b5
R13: ffffc9000319f680 R14: ffffc9000319f680 R15: ffffffff8e37f2c0
__unwind_start+0x51b/0x800 arch/x86/kernel/unwind_orc.c:712
unwind_start arch/x86/include/asm/unwind.h:64 [inline]
arch_stack_walk+0x5c/0xe0 arch/x86/kernel/stacktrace.c:24
stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
kasan_set_track mm/kasan/common.c:45 [inline]
set_alloc_info mm/kasan/common.c:436 [inline]
____kasan_kmalloc mm/kasan/common.c:515 [inline]
____kasan_kmalloc mm/kasan/common.c:474 [inline]
__kasan_kmalloc+0xa6/0xd0 mm/kasan/common.c:524
kmalloc_node include/linux/slab.h:623 [inline]
__vmalloc_area_node mm/vmalloc.c:2981 [inline]
__vmalloc_node_range+0xa40/0x13e0 mm/vmalloc.c:3165
alloc_thread_stack_node kernel/fork.c:312 [inline]
dup_task_struct kernel/fork.c:977 [inline]
copy_process+0x156e/0x7020 kernel/fork.c:2071
kernel_clone+0xe7/0xab0 kernel/fork.c:2655
__do_sys_clone+0xba/0x100 kernel/fork.c:2789
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f28162876fb
Code: ed 0f 85 60 01 00 00 64 4c 8b 0c 25 10 00 00 00 45 31 c0 4d 8d 91 d0 02 00 00 31 d2 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 89 00 00 00 41 89 c5 85 c0 0f 85 90 00 00
RSP: 002b:00007ffeeebe7ad0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f28162876fb
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000555555623400
R10: 00005555556236d0 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffeeebe7bb0
----------------
Code disassembly (best guess):
0: 41 5c pop %r12
2: c3 retq
3: 45 31 e4 xor %r12d,%r12d
6: 44 89 e0 mov %r12d,%eax
9: 41 5c pop %r12
b: c3 retq
c: 66 66 2e 0f 1f 84 00 data16 nopw %cs:0x0(%rax,%rax,1)
13: 00 00 00 00
17: 66 90 xchg %ax,%ax
19: 41 54 push %r12
1b: 41 bc 01 00 00 00 mov $0x1,%r12d
21: e8 63 20 13 08 callq 0x8132089
26: 85 c0 test %eax,%eax
28: 75 06 jne 0x30
* 2a: 44 89 e0 mov %r12d,%eax <-- trapping instruction
2d: 41 5c pop %r12
2f: c3 retq
30: e8 24 9c 00 00 callq 0x9c59
35: 84 c0 test %al,%al
37: 74 41 je 0x7a
39: e8 8b b8 00 00 callq 0xb8c9
3e: 84 c0 test %al,%al