rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (1 GPs behind) idle=e014/1/0x4000000000000000 softirq=71517/71523 fqs=11
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P16557/1:b..l
rcu: (detected by 1, t=10502 jiffies, g=63769, q=194 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 16540 Comm: syz.4.2594 Not tainted 6.13.0-rc7-syzkaller-00043-g619f0b6fad52 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
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_irqs_disabled arch/x86/include/asm/irqflags.h:147 [inline]
RIP: 0010:lock_release+0x62c/0xa30 kernel/locking/lockdep.c:5873
Code: 4c 89 f3 48 c1 eb 03 42 80 3c 3b 00 74 08 4c 89 f7 e8 68 00 8b 00 48 c7 84 24 90 00 00 00 00 00 00 00 9c 8f 84 24 90 00 00 00 <42> 80 3c 3b 00 74 08 4c 89 f7 e8 55 ff 8a 00 f6 84 24 91 00 00 00
RSP: 0018:ffffc90000007a00 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 1ffff92000000f52 RCX: ffffc90000007a03
RDX: 0000000000000002 RSI: ffffffff8c0aaae0 RDI: ffffffff8c5fb220
RBP: ffffc90000007b30 R08: ffffffff901983b7 R09: 1ffffffff2033076
R10: dffffc0000000000 R11: fffffbfff2033077 R12: 1ffff92000000f4c
R13: 0000000000000046 R14: ffffc90000007a90 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000005f6c4000 CR4: 0000000000350ef0
Call Trace:
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline]
_raw_spin_unlock_irqrestore+0x79/0x140 kernel/locking/spinlock.c:194
debug_object_activate+0x3f7/0x580 lib/debugobjects.c:836
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:folios_put_refs+0x498/0x860
Code: e8 8d c5 c2 ff 4c 89 ef e8 d5 b2 37 00 eb 0c e8 7e c5 c2 ff eb 05 e8 77 c5 c2 ff 48 bb 00 00 00 00 00 fc ff df 4c 8b 74 24 18 <4c> 8b 6c 24 10 48 8b 44 24 40 0f b6 04 18 84 c0 0f 85 e4 00 00 00
RSP: 0018:ffffc9000562f360 EFLAGS: 00000293
RAX: ffffffff81dcbcf2 RBX: dffffc0000000000 RCX: ffff88801ebd5a00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000562f470 R08: ffffffff81dcbb97 R09: 1ffffd400029ebce
R10: dffffc0000000000 R11: fffff9400029ebcf R12: ffffc9000562f558
R13: ffffea00014f5e40 R14: ffffc9000562f4e0 R15: 000000000000000e
free_pages_and_swap_cache+0x2ea/0x690 mm/swap_state.c:332
__tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]
tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:366 [inline]
tlb_flush_mmu+0x3a3/0x680 mm/mmu_gather.c:373
tlb_finish_mmu+0xd4/0x200 mm/mmu_gather.c:465
exit_mmap+0x496/0xc20 mm/mmap.c:1685
__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
get_signal+0x16b2/0x1750 kernel/signal.c:3017
arch_do_signal_or_restart+0x96/0x860 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+0xce/0x340 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc323d85d29
Code: Unable to access opcode bytes at 0x7fc323d85cff.
RSP: 002b:00007fc323bf90e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fc323f75fa8 RCX: 00007fc323d85d29
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fc323f75fa8
RBP: 00007fc323f75fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc323f75fac
R13: 0000000000000000 R14: 00007ffdd703d560 R15: 00007ffdd703d648
task:syz-executor state:R running task stack:26752 pid:16557 tgid:16557 ppid:8276 flags:0x00000000
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_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707
RIP: 0010:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5853
Code: 2b 00 74 08 4c 89 f7 e8 0a 2b 8b 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc9000c1275a0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92001824ec0 RCX: ffff88802d4ee4d8
RDX: dffffc0000000000 RSI: ffffffff8c0aaae0 RDI: ffffffff8c5fb220
RBP: ffffc9000c1276f0 R08: ffffffff942a5887 R09: 1ffffffff2854b10
R10: dffffc0000000000 R11: fffffbfff2854b11 R12: 1ffff92001824ebc
R13: dffffc0000000000 R14: ffffc9000c127600 R15: 0000000000000246
rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
rcu_read_lock include/linux/rcupdate.h:849 [inline]
is_bpf_text_address+0x46/0x2a0 kernel/bpf/core.c:772
kernel_text_address+0xa7/0xe0 kernel/extable.c:125
__kernel_text_address+0xd/0x40 kernel/extable.c:79
unwind_get_return_address+0x4d/0x90 arch/x86/kernel/unwind_orc.c:369
arch_stack_walk+0xfd/0x150 arch/x86/kernel/stacktrace.c:26
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
__kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:394
kasan_kmalloc include/linux/kasan.h:260 [inline]
__do_kmalloc_node mm/slub.c:4298 [inline]
__kmalloc_noprof+0x285/0x4c0 mm/slub.c:4310
kmalloc_noprof include/linux/slab.h:905 [inline]
kmalloc_array_noprof include/linux/slab.h:946 [inline]
security_inode_init_security+0x126/0x480 security/security.c:1824
shmem_symlink+0x163/0x630 mm/shmem.c:3930
vfs_symlink+0x139/0x2e0 fs/namei.c:4669
do_symlinkat+0x222/0x3a0 fs/namei.c:4695
__do_sys_symlinkat fs/namei.c:4711 [inline]
__se_sys_symlinkat fs/namei.c:4708 [inline]
__x64_sys_symlinkat+0x95/0xb0 fs/namei.c:4708
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: 0033:0x7f57d61852a7
RSP: 002b:00007ffed8810868 EFLAGS: 00000206 ORIG_RAX: 000000000000010a
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f57d61852a7
RDX: 00007f57d620330d RSI: 00000000ffffff9c RDI: 00007f57d6201ecb
RBP: 00007ffed881089c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000032
R13: 00000000000f33a9 R14: 00007ffed88108f0 R15: 00007ffed88108f0
rcu: rcu_preempt kthread starved for 10459 jiffies! g63769 f0x0 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: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: 1 UID: 0 PID: 16565 Comm: syz.6.2588 Not tainted 6.13.0-rc7-syzkaller-00043-g619f0b6fad52 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline]
RIP: 0010:smp_call_function_many_cond+0x19f8/0x2c60 kernel/smp.c:884
Code: 89 e6 83 e6 01 31 ff e8 c6 e6 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 71 e2 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 55 e2 0b 00 eb e4 44
RSP: 0018:ffffc9000bd073e0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 1ffff110170c8c89 RCX: 0000000000080000
RDX: ffffc9001374e000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc9000bd075e0 R08: ffffffff81939fea R09: 1ffffffff2854b10
R10: dffffc0000000000 R11: fffffbfff2854b11 R12: dffffc0000000000
R13: ffff8880b8646448 R14: ffff8880b873fac0 R15: 0000000000000000
FS: 00007fcc9104f6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcc9104ef98 CR3: 0000000067ca8000 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_bp+0xb0/0x100 arch/x86/kernel/alternative.c:2551
__static_call_transform+0x51a/0x810 arch/x86/kernel/static_call.c:111
arch_static_call_transform+0x141/0x380 arch/x86/kernel/static_call.c:163
__static_call_update+0xd8/0x5e0 kernel/static_call_inline.c:147
tracepoint_update_call kernel/tracepoint.c:271 [inline]
tracepoint_add_func+0x844/0xaa0 kernel/tracepoint.c:319
tracepoint_probe_register_prio_may_exist+0x122/0x190 kernel/tracepoint.c:435
bpf_raw_tp_link_attach+0x4a3/0x700 kernel/bpf/syscall.c:3981
bpf_raw_tracepoint_open+0x177/0x1f0 kernel/bpf/syscall.c:4012
__sys_bpf+0x3c0/0x810 kernel/bpf/syscall.c:5832
__do_sys_bpf kernel/bpf/syscall.c:5897 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5895 [inline]
__x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5895
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: 0033:0x7fcc90185d29
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:00007fcc9104f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fcc90376160 RCX: 00007fcc90185d29
RDX: 0000000000000010 RSI: 0000000020000a00 RDI: 0000000000000011
RBP: 00007fcc90201b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fcc90376160 R15: 00007ffd6bc1f488