rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...!: (1 GPs behind) idle=37dc/1/0x4000000000000000 softirq=37817/37818 fqs=0
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P10089/1:b..l
rcu: (detected by 0, t=10505 jiffies, g=40225, q=258 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 10104 Comm: syz.3.1077 Not tainted 6.13.0-rc5-syzkaller-00004-gccb98ccef0e5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:23 [inline]
RIP: 0010:raw_atomic_read include/linux/atomic/atomic-arch-fallback.h:457 [inline]
RIP: 0010:rcu_is_watching_curr_cpu include/linux/context_tracking.h:128 [inline]
RIP: 0010:rcu_is_watching+0x5c/0xc0 kernel/rcu/tree.c:737
Code: 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 5c 48 03 1c ed e0 7c a7 8d 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <0f> b6 14 02 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 24 8b
RSP: 0018:ffffc90000a18c80 EFLAGS: 00000806
RAX: dffffc0000000000 RBX: ffff8880b8737f68 RCX: ffffffff8175dd0c
RDX: 1ffff110170e6fed RSI: ffffffff8bd1ed60 RDI: ffffffff8da77ce8
RBP: 0000000000000001 R08: 0000000000000000 R09: fffffbfff20be6da
R10: ffffffff905f36d7 R11: 0000000000000001 R12: 0000000000000000
R13: 000000000003d90c R14: 0000000000000001 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000295b2000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
trace_lock_acquire+0x14e/0x1f0 include/trace/events/lock.h:24
lock_acquire+0x2f/0xb0 kernel/locking/lockdep.c:5820
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162
debug_object_deactivate+0x13b/0x370 lib/debugobjects.c:873
debug_hrtimer_deactivate kernel/time/hrtimer.c:433 [inline]
debug_deactivate kernel/time/hrtimer.c:475 [inline]
__run_hrtimer kernel/time/hrtimer.c:1707 [inline]
__hrtimer_run_queues+0x47c/0xae0 kernel/time/hrtimer.c:1803
hrtimer_interrupt+0x392/0x8e0 kernel/time/hrtimer.c:1865
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
__sysvec_apic_timer_interrupt+0x10f/0x400 arch/x86/kernel/apic/apic.c:1055
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0x9f/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:stack_not_used kernel/exit.c:790 [inline]
RIP: 0010:check_stack_usage kernel/exit.c:842 [inline]
RIP: 0010:do_exit+0x1cdd/0x2d70 kernel/exit.c:981
Code: ff df 4c 8b 65 20 4c 89 e5 e8 5f 42 3e 00 48 83 c5 08 48 89 e8 48 c1 e8 03 42 80 3c 28 00 0f 85 8f 0a 00 00 4c 8b 75 00 31 ff <4c> 89 f6 e8 ab 44 3e 00 4d 85 f6 74 d2 e8 31 42 3e 00 4c 89 e0 49
RSP: 0018:ffffc9000df6fbe8 EFLAGS: 00000246
RAX: 1ffff92001bedb9c RBX: ffff88807ee24880 RCX: ffffffff815bd3e5
RDX: ffff88807ee24880 RSI: ffffffff815bd3c1 RDI: 0000000000000000
RBP: ffffc9000df6dce0 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffc9000df68000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffffc9000df6f628
do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
get_signal+0x24ed/0x26c0 kernel/signal.c:3017
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f56c2f85d29
Code: Unable to access opcode bytes at 0x7f56c2f85cff.
RSP: 002b:00007f56c0df60e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f56c3175fa8 RCX: 00007f56c2f85d29
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f56c3175fa8
RBP: 00007f56c3175fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f56c3175fac
R13: 0000000000000000 R14: 00007ffd27735c60 R15: 00007ffd27735d48
task:syz.0.1072 state:R running task stack:25968 pid:10089 tgid:10088 ppid:5824 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0xe58/0x5ad0 kernel/sched/core.c:6756
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7078
irqentry_exit+0x36/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__update_page_owner_free_handle mm/page_owner.c:273 [inline]
RIP: 0010:__reset_page_owner+0x100/0x400 mm/page_owner.c:298
Code: 31 ff 44 89 e6 e8 40 d1 93 ff 49 01 ef 45 85 e4 74 4a e8 f3 ce 93 ff be 08 00 00 00 48 89 ef e8 96 82 f6 ff 48 0f ba 75 00 01 <49> 8d 7f 0c 48 b8 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 0f
RSP: 0018:ffffc9000cfef328 EFLAGS: 00000247
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff8206473a
RDX: ffffed1003bb8217 RSI: 0000000000000008 RDI: ffff88801ddc10b0
RBP: ffff88801ddc10b0 R08: 0000000000000001 R09: ffffed1003bb8216
R10: ffff88801ddc10b7 R11: 00000000000a29bd R12: 0000000006c6041e
R13: 0000000000000001 R14: 0000000000000000 R15: ffff88801ddc10b8
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_unref_folios+0xa7b/0x14f0 mm/page_alloc.c:2706
folios_put_refs+0x587/0x7b0 mm/swap.c:962
folio_batch_release include/linux/pagevec.h:101 [inline]
shmem_undo_range+0x586/0x1170 mm/shmem.c:1044
shmem_truncate_range mm/shmem.c:1156 [inline]
shmem_evict_inode+0x3a3/0xba0 mm/shmem.c:1284
evict+0x409/0x960 fs/inode.c:796
iput_final fs/inode.c:1946 [inline]
iput fs/inode.c:1972 [inline]
iput+0x52a/0x890 fs/inode.c:1958
dentry_unlink_inode+0x29c/0x480 fs/dcache.c:422
__dentry_kill+0x1d0/0x600 fs/dcache.c:625
dput.part.0+0x4b1/0x9b0 fs/dcache.c:867
dput+0x1f/0x30 fs/dcache.c:857
__fput+0x515/0xb60 fs/file_table.c:458
task_work_run+0x14e/0x250 kernel/task_work.c:239
get_signal+0x1d3/0x26c0 kernel/signal.c:2790
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fece3b85d29
RSP: 002b:00007fece491b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: 0000000020000000 RBX: 00007fece3d75fa0 RCX: 00007fece3b85d29
RDX: b635773f06ebbeea RSI: 0000000000b36000 RDI: 0000000020000000
RBP: 00007fece3c01b08 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fece3d75fa0 R15: 00007ffd270d1798
rcu: rcu_preempt kthread starved for 10505 jiffies! g40225 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:27744 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0xe58/0x5ad0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6848
schedule_timeout+0x124/0x280 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2045
rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2247
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 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: 10105 Comm: syz.3.1077 Not tainted 6.13.0-rc5-syzkaller-00004-gccb98ccef0e5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x8/0x20 kernel/kcov.c:314
Code: bf 03 00 00 00 e9 58 fe ff ff 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 0c 24 <89> f2 89 fe bf 05 00 00 00 e9 2a fe ff ff 66 2e 0f 1f 84 00 00 00
RSP: 0018:ffffc9000477fb10 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffff8880b8744a40 RCX: ffffffff818e078c
RDX: ffff8880309a4880 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000004 R12: ffffed10170e8949
R13: 0000000000000001 R14: ffff8880b8744a48 R15: ffff8880b863fe40
FS: 00007f56c0dd56c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000295b2000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
csd_lock_wait kernel/smp.c:340 [inline]
smp_call_function_many_cond+0x47c/0x1300 kernel/smp.c:884
on_each_cpu_cond_mask+0x40/0x90 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+0x659/0x760 arch/x86/kernel/alternative.c:2324
text_poke_flush arch/x86/kernel/alternative.c:2515 [inline]
text_poke_flush arch/x86/kernel/alternative.c:2512 [inline]
text_poke_finish+0x30/0x40 arch/x86/kernel/alternative.c:2522
arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
jump_label_update+0x1d7/0x400 kernel/jump_label.c:920
static_key_slow_inc_cpuslocked kernel/jump_label.c:168 [inline]
static_key_slow_inc_cpuslocked+0x82/0x120 kernel/jump_label.c:151
static_key_slow_inc+0x1a/0x30 kernel/jump_label.c:191
io_uring_create io_uring/io_uring.c:3646 [inline]
io_uring_setup+0x2054/0x3230 io_uring/io_uring.c:3811
__do_sys_io_uring_setup io_uring/io_uring.c:3838 [inline]
__se_sys_io_uring_setup io_uring/io_uring.c:3832 [inline]
__x64_sys_io_uring_setup+0x98/0x140 io_uring/io_uring.c:3832
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f56c2f85d29
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:00007f56c0dd4fc8 EFLAGS: 00000202 ORIG_RAX: 00000000000001a9
RAX: ffffffffffffffda RBX: 00007f56c3176080 RCX: 00007f56c2f85d29
RDX: 0000000000000000 RSI: 0000000020000400 RDI: 0000000000002c0c
RBP: 0000000020000400 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000002c0c R15: 0000000000000000