rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P8690/1:b..l
rcu: (detected by 0, t=10502 jiffies, g=19929, q=15 ncpus=2)
task:syz.3.654 state:R running task stack:22840 pid:8690 tgid:8689 ppid:5833 flags:0x00000002
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:native_save_fl arch/x86/include/asm/irqflags.h:32 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:87 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:123 [inline]
RIP: 0010:lock_acquire+0x187/0x550 kernel/locking/lockdep.c:5845
Code: 4c 89 fb 48 c1 eb 03 42 80 3c 2b 00 74 08 4c 89 ff e8 3d 26 8b 00 48 c7 84 24 80 00 00 00 00 00 00 00 9c 8f 84 24 80 00 00 00 <42> 80 3c 2b 00 74 08 4c 89 ff e8 2a 25 8b 00 48 8d 5c 24 60 4c 8b
RSP: 0018:ffffc900039375e0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 1ffff92000726ecc RCX: ffffffff817abff4
RDX: 0000000000000000 RSI: ffffffff8c5fb080 RDI: ffffffff8c5fb040
RBP: ffffc90003937730 R08: ffffffff901982f7 R09: 1ffffffff203305e
R10: dffffc0000000000 R11: fffffbfff203305f R12: 1ffff92000726ec4
R13: dffffc0000000000 R14: 0000000000000000 R15: ffffc90003937660
rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
rcu_read_lock include/linux/rcupdate.h:849 [inline]
percpu_ref_get_many+0x36/0x140 include/linux/percpu-refcount.h:202
percpu_ref_get include/linux/percpu-refcount.h:222 [inline]
css_get include/linux/cgroup_refcnt.h:11 [inline]
mem_cgroup_commit_charge mm/memcontrol.c:2409 [inline]
charge_memcg+0xcb/0x170 mm/memcontrol.c:4501
__mem_cgroup_charge+0x27/0x80 mm/memcontrol.c:4512
mem_cgroup_charge include/linux/memcontrol.h:646 [inline]
shmem_alloc_and_add_folio+0x89e/0x1080 mm/shmem.c:1848
shmem_get_folio_gfp+0x621/0x1840 mm/shmem.c:2358
shmem_get_folio mm/shmem.c:2464 [inline]
shmem_write_begin+0x165/0x350 mm/shmem.c:3120
generic_perform_write+0x348/0x990 mm/filemap.c:4046
shmem_file_write_iter+0xf9/0x120 mm/shmem.c:3296
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: 0033:0x7f025ad847df
RSP: 002b:00007f025bc45df0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000200000 RCX: 00007f025ad847df
RDX: 0000000000200000 RSI: 00007f0250600000 RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000001f298
R10: 0000000000003ffc R11: 0000000000000293 R12: 0000000000000004
R13: 00007f025bc45ef0 R14: 00007f025bc45eb0 R15: 00007f0250600000
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g19929 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=1 timer-softirq=31398
rcu: rcu_preempt kthread starved for 10502 jiffies! g19929 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: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:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 8717 Comm: syz.2.661 Not tainted 6.13.0-rc6-syzkaller-00262-gb62cef9a5c67 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:32 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:87 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:123 [inline]
RIP: 0010:lock_acquire+0x187/0x550 kernel/locking/lockdep.c:5845
Code: 4c 89 fb 48 c1 eb 03 42 80 3c 2b 00 74 08 4c 89 ff e8 3d 26 8b 00 48 c7 84 24 80 00 00 00 00 00 00 00 9c 8f 84 24 80 00 00 00 <42> 80 3c 2b 00 74 08 4c 89 ff e8 2a 25 8b 00 48 8d 5c 24 60 4c 8b
RSP: 0018:ffffc90000a18a20 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 1ffff92000143154 RCX: ffffffff817abff4
RDX: 0000000000000000 RSI: ffffffff8c5fb080 RDI: ffffffff8c5fb040
RBP: ffffc90000a18b68 R08: ffffffff901982f7 R09: 1ffffffff203305e
R10: dffffc0000000000 R11: fffffbfff203305f R12: 1ffff9200014314c
R13: dffffc0000000000 R14: 0000000000000000 R15: ffffc90000a18aa0
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f025079a000 CR3: 0000000060dc6000 CR4: 0000000000350ef0
Call Trace:
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
debug_object_deactivate+0x158/0x390 lib/debugobjects.c:873
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:trace_lock_acquire include/trace/events/lock.h:24 [inline]
RIP: 0010:lock_acquire+0xe5/0x550 kernel/locking/lockdep.c:5820
Code: 48 89 d8 48 c1 e8 06 48 8d 3c c5 f0 82 19 90 be 08 00 00 00 e8 5c 28 8b 00 48 0f a3 1d f4 c2 9e 0e 73 16 e8 dd 5f 0a 00 84 c0 <75> 0d 80 3d c4 f0 88 0e 00 0f 84 f9 02 00 00 48 c7 c0 90 b5 19 90
RSP: 0018:ffffc90003b8f380 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff817abff4
RDX: 0000000000000000 RSI: ffffffff8c5fb080 RDI: ffffffff8c5fb040
RBP: ffffc90003b8f4d8 R08: ffffffff901982f7 R09: 1ffffffff203305e
R10: dffffc0000000000 R11: fffffbfff203305f R12: 1ffff92000771e78
R13: dffffc0000000000 R14: 0000000000000000 R15: ffffea0001bb9e40
rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
rcu_read_lock include/linux/rcupdate.h:849 [inline]
page_ext_get+0x3d/0x2a0 mm/page_ext.c:525
page_table_check_clear+0x4b/0x550 mm/page_table_check.c:74
get_and_clear_full_ptes include/linux/pgtable.h:705 [inline]
zap_present_folio_ptes mm/memory.c:1502 [inline]
zap_present_ptes mm/memory.c:1585 [inline]
zap_pte_range mm/memory.c:1627 [inline]
zap_pmd_range mm/memory.c:1753 [inline]
zap_pud_range mm/memory.c:1782 [inline]
zap_p4d_range mm/memory.c:1803 [inline]
unmap_page_range+0x2c2e/0x4040 mm/memory.c:1824
unmap_vmas+0x3cc/0x5f0 mm/memory.c:1914
exit_mmap+0x275/0xc20 mm/mmap.c:1672
__mmput+0x115/0x3c0 kernel/fork.c:1348
exit_mm+0x220/0x310 kernel/exit.c:570
do_exit+0x9ad/0x28e0 kernel/exit.c:925
do_group_exit+0x207/0x2c0 kernel/exit.c:1087
__do_sys_exit_group kernel/exit.c:1098 [inline]
__se_sys_exit_group kernel/exit.c:1096 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1096
x64_sys_call+0x26a8/0x26b0 arch/x86/include/generated/asm/syscalls_64.h:232
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: 0033:0x7f1100985d29
Code: Unable to access opcode bytes at 0x7f1100985cff.
RSP: 002b:00007ffe0dc0bed8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1100985d29
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffe0dc0bf2c R08: 00007ffe0dc0bfbf R09: 0000000000065db9
R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000032
R13: 0000000000065db9 R14: 00007ffe0dc0bf80 R15: 00007ffe0dc0bf80