rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (1 ticks this GP) idle=7c7/1/0x4000000000000000 softirq=96690/96690 fqs=0
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P29690/1:b..l
(detected by 1, t=10502 jiffies, g=142737, q=30)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 29688 Comm: syz-executor.0 Not tainted 5.15.130-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:__lock_acquire+0xd3d/0x1ff0 kernel/locking/lockdep.c:4984
Code: 0a 00 00 49 89 ee 49 c1 ee 03 41 80 3c 3e 00 74 12 48 89 ef e8 54 2e 67 00 48 bf 00 00 00 00 00 fc ff df 31 c0 48 89 6c 24 58 <4c> 8b 7d 00 4d 85 e4 75 2f 48 c7 c0 00 00 3d 91 48 c1 e8 03 0f b6
RSP: 0018:ffffc90000007a60 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffff88807bdbe430 RCX: ffffffff81628f3f
RDX: 0000000000000000 RSI: 0000000000000008 RDI: dffffc0000000000
RBP: ffff88807bdbe420 R08: dffffc0000000000 R09: fffffbfff1f7b021
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff88807bdbe428 R14: 1ffff1100f7b7c84 R15: ffff88807bdbe450
FS: 00007f4cb2f1e6c0(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2d853bbaf0 CR3: 00000000703b8000 CR4: 00000000003506f0
Call Trace:
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5622
rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:269
rcu_read_lock include/linux/rcupdate.h:696 [inline]
advance_sched+0x6ce/0x940 net/sched/sch_taprio.c:769
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x598/0xcf0 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline]
__sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1096
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:84 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x71/0x290 mm/kasan/generic.c:189
Code: 54 37 ff 49 c1 ea 03 49 bb 01 00 00 00 00 fc ff df 4f 8d 34 1a 4c 89 f5 4c 29 cd 48 83 fd 10 7f 26 48 85 ed 0f 84 3a 01 00 00 <49> f7 d2 49 01 da 41 80 39 00 0f 85 c4 01 00 00 49 ff c1 49 ff c2
RSP: 0018:ffffc90004e178a8 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 1ffff920001be941 RCX: ffffffff8163f5f4
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffc90000df4a08
RBP: 0000000000000001 R08: dffffc0000000000 R09: fffff520001be941
R10: 1ffff920001be941 R11: dffffc0000000001 R12: 1ffff920009c2f5d
R13: ffff88807bdbd940 R14: fffff520001be942 R15: ffffc90000df4a08
instrument_atomic_read include/linux/instrumented.h:71 [inline]
atomic_read include/linux/atomic/atomic-instrumented.h:27 [inline]
queued_spin_is_locked include/asm-generic/qspinlock.h:28 [inline]
debug_spin_unlock kernel/locking/spinlock_debug.c:100 [inline]
do_raw_spin_unlock+0x54/0x8b0 kernel/locking/spinlock_debug.c:140
__raw_spin_unlock include/linux/spinlock_api_smp.h:151 [inline]
_raw_spin_unlock+0x1a/0x40 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:403 [inline]
queue_me kernel/futex/core.c:2510 [inline]
futex_wait_queue_me+0x190/0x480 kernel/futex/core.c:2836
futex_wait+0x2f8/0x740 kernel/futex/core.c:2954
do_futex+0x1414/0x1810 kernel/futex/core.c:3972
__do_sys_futex kernel/futex/core.c:4049 [inline]
__se_sys_futex+0x407/0x490 kernel/futex/core.c:4030
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f4cb499cae9
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:00007f4cb2f1e178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f4cb4abbf88 RCX: 00007f4cb499cae9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4cb4abbf88
RBP: 00007f4cb4abbf80 R08: 00007f4cb2f1e6c0 R09: 00007f4cb2f1e6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4cb4abbf8c
R13: 000000000000000b R14: 00007ffd665ce3a0 R15: 00007ffd665ce488
task:syz-executor.1 state:R running task stack:28096 pid:29690 ppid: 3537 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5026 [inline]
__schedule+0x12c4/0x4590 kernel/sched/core.c:6372
preempt_schedule_common+0x83/0xd0 kernel/sched/core.c:6548
preempt_schedule+0xd9/0xe0 kernel/sched/core.c:6573
preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34
__raw_spin_unlock include/linux/spinlock_api_smp.h:152 [inline]
_raw_spin_unlock+0x36/0x40 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:403 [inline]
filemap_map_pages+0x11d1/0x1560 mm/filemap.c:3344
do_fault_around mm/memory.c:4213 [inline]
do_read_fault mm/memory.c:4228 [inline]
do_fault mm/memory.c:4362 [inline]
handle_pte_fault mm/memory.c:4621 [inline]
__handle_mm_fault mm/memory.c:4756 [inline]
handle_mm_fault+0x341b/0x5950 mm/memory.c:4854
do_user_addr_fault arch/x86/mm/fault.c:1397 [inline]
handle_page_fault arch/x86/mm/fault.c:1485 [inline]
exc_page_fault+0x271/0x740 arch/x86/mm/fault.c:1541
asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:568
RIP: 0033:0x7f2d853bbaf0
RSP: 002b:00007ffd5371c9f8 EFLAGS: 00010216
RAX: 0000000000000020 RBX: 00007ffd5371cf60 RCX: 0000000000000000
RDX: 000000000000000a RSI: 00007ffd5371cf08 RDI: 0000000000000001
RBP: 0000000000000016 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000001 R12: 0000000000000075
R13: 00007ffd5371d0e0 R14: 00007ffd5371cf08 R15: 0000000000000001
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g142737 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=1 timer-softirq=111749
rcu: rcu_preempt kthread starved for 10502 jiffies! g142737 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:26712 pid: 15 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5026 [inline]
__schedule+0x12c4/0x4590 kernel/sched/core.c:6372
schedule+0x11b/0x1f0 kernel/sched/core.c:6455
schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1884
rcu_gp_fqs_loop+0x2af/0xf70 kernel/rcu/tree.c:1959
rcu_gp_kthread+0xa4/0x360 kernel/rcu/tree.c:2132
kthread+0x3f6/0x4f0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
rcu: Stack dump where RCU GP kthread last ran:
NMI backtrace for cpu 1
CPU: 1 PID: 29686 Comm: syz-executor.0 Not tainted 5.15.130-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:166 [inline]
rcu_check_gp_kthread_starvation+0x1d2/0x240 kernel/rcu/tree_stall.h:481
print_other_cpu_stall+0x137a/0x14d0 kernel/rcu/tree_stall.h:586
check_cpu_stall kernel/rcu/tree_stall.h:729 [inline]
rcu_pending kernel/rcu/tree.c:3911 [inline]
rcu_sched_clock_irq+0x94f/0x1770 kernel/rcu/tree.c:2606
update_process_times+0x196/0x200 kernel/time/timer.c:1788
tick_sched_handle kernel/time/tick-sched.c:254 [inline]
tick_sched_timer+0x386/0x550 kernel/time/tick-sched.c:1473
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x55b/0xcf0 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline]
__sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1096
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline]
RIP: 0010:arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline]
RIP: 0010:kvm_wait+0x1b4/0x200 arch/x86/kernel/kvm.c:918
Code: e0 48 c1 e8 03 42 0f b6 04 28 84 c0 75 42 45 0f b6 34 24 e8 1e b1 4e 00 44 3a 74 24 1c 75 10 66 90 0f 00 2d 5e 84 50 09 fb f4 c8 fe ff ff fb e9 c2 fe ff ff 44 89 e1 80 e1 07 38 c1 0f 8c 54
RSP: 0018:ffffc9000327f7a0 EFLAGS: 00000246
RAX: d43fc1dd2de50800 RBX: 1ffff9200064fef8 RCX: ffffffff8162e9b8
RDX: dffffc0000000000 RSI: ffffffff8a8b0ce0 RDI: ffffffff8ad878c0
RBP: ffffc9000327f870 R08: dffffc0000000000 R09: fffffbfff1f7b03a
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90000df4a08
R13: dffffc0000000000 R14: 0000000000000003 R15: ffffc9000327f7e0
pv_wait arch/x86/include/asm/paravirt.h:597 [inline]
pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline]
__pv_queued_spin_lock_slowpath+0x6bc/0xc40 kernel/locking/qspinlock.c:508
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:585 [inline]
queued_spin_lock_slowpath+0x42/0x50 arch/x86/include/asm/qspinlock.h:51
queued_spin_lock include/asm-generic/qspinlock.h:85 [inline]
do_raw_spin_lock+0x269/0x370 kernel/locking/spinlock_debug.c:115
spin_lock include/linux/spinlock.h:363 [inline]
futex_wake+0x316/0x750 kernel/futex/core.c:1672
do_futex+0x1394/0x1810 kernel/futex/core.c:3977
__do_sys_futex kernel/futex/core.c:4049 [inline]
__se_sys_futex+0x407/0x490 kernel/futex/core.c:4030
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f4cb499cae9
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:00007ffd665ce568 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4cb499cae9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f4cb4abbf88
RBP: 0000000000000048 R08: 00007f4cb4abbf8c R09: 00007f4cb4abbf8c
R10: 00007f4cb4520618 R11: 0000000000000246 R12: 00007f4cb4abbf80
R13: 0000000000000090 R14: 0000000000000000 R15: 00007f4cb4abbf80