GRED: Unable to relocate VQ 0x0 after dequeue, screwing up backlog
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...!: (1 GPs behind) idle=4094/1/0x4000000000000000 softirq=78248/78249 fqs=5
rcu: (detected by 0, t=10502 jiffies, g=125365, q=374 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 20962 Comm: syz-executor.4 Not tainted 6.9.0-rc2-next-20240405-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:lock_is_held_type+0x5/0x190 kernel/locking/lockdep.c:5810
Code: 90 90 eb b5 e8 2c fc ff ff 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 <41> 57 41 56 41 55 41 54 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00
RSP: 0018:ffffc90000a08c80 EFLAGS: 00000002
RAX: 0000000080010001 RBX: 0000000000000001 RCX: ffff88802f539e00
RDX: ffff88802f539e00 RSI: 00000000ffffffff RDI: ffff888064cfb300
RBP: dffffc0000000000 R08: ffffffff898daeab R09: fffff52000141180
R10: dffffc0000000000 R11: fffff52000141180 R12: 0000000000000002
R13: ffffffff898dadf0 R14: ffff888064cfb340 R15: ffff88802f53a8c8
FS: 00007fc4d9aa06c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200000c0 CR3: 000000004f66a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_is_held include/linux/lockdep.h:231 [inline]
advance_sched+0xcd/0xca0 net/sched/sch_taprio.c:925
__run_hrtimer kernel/time/hrtimer.c:1692 [inline]
__hrtimer_run_queues+0x5a5/0xd50 kernel/time/hrtimer.c:1756
hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1818
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
__sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:exit_to_user_mode_loop kernel/entry/common.c:101 [inline]
RIP: 0010:exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
RIP: 0010:__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
RIP: 0010:syscall_exit_to_user_mode+0xa7/0x360 kernel/entry/common.c:218
Code: 37 c0 7e 74 85 c0 0f 85 2b 02 00 00 e8 b2 14 00 00 49 8b 1c 24 f7 c3 0e 30 02 00 0f 84 e5 00 00 00 e8 ed 01 19 f6 fb f6 c3 08 <0f> 85 8c 00 00 00 f7 c3 00 10 00 00 0f 85 91 00 00 00 f7 c3 04 00
RSP: 0018:ffffc9000dbcfed8 EFLAGS: 00000246
RAX: 93de06079eef8700 RBX: 0000000000004002 RCX: ffffffff9476b603
RDX: dffffc0000000000 RSI: ffffffff8bcad640 RDI: ffffffff8c1f9f60
RBP: ffffc9000dbcff48 R08: ffffffff8fac016f R09: 1ffffffff1f5802d
R10: dffffc0000000000 R11: fffffbfff1f5802e R12: ffff88802f539e00
R13: 0000000000000000 R14: ffffc9000dbcff58 R15: 00000000000000ca
do_syscall_64+0x10a/0x240 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x72/0x7a
RIP: 0033:0x7fc4d8c7de69
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:00007fc4d9aa0178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007fc4d8dabf88 RCX: 00007fc4d8c7de69
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc4d8dabf8c
RBP: 00007fc4d8dabf80 R08: 00007fc4d9aa10b0 R09: 00007fc4d9aa06c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc4d8dabf8c
R13: 000000000000000b R14: 00007ffef477a1f0 R15: 00007ffef477a2d8
rcu: rcu_preempt kthread starved for 10475 jiffies! g125365 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:26320 pid:16 tgid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x17e8/0x4a50 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6838
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2582
rcu_gp_fqs_loop+0x2df/0x1370 kernel/rcu/tree.c:1683
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:1882
kthread+0x2f0/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 PID: 13961 Comm: syz-executor.0 Not tainted 6.9.0-rc2-next-20240405-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:csd_lock_wait kernel/smp.c:311 [inline]
RIP: 0010:smp_call_function_many_cond+0x1894/0x2a00 kernel/smp.c:855
Code: 45 8b 65 00 44 89 e6 83 e6 01 31 ff e8 e5 d9 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 90 d5 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 74 d5
RSP: 0018:ffffc90002edf800 EFLAGS: 00000293
RAX: ffffffff8189b83c RBX: 1ffff110172a8861 RCX: ffff88801fa8bc00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90002edf9f0 R08: ffffffff8189b80b R09: 1ffffffff25ee6a4
R10: dffffc0000000000 R11: fffffbfff25ee6a5 R12: dffffc0000000000
R13: ffff8880b9544308 R14: ffff8880b943f740 R15: 0000000000000001
FS: 0000555570eb6480(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff8ffe71000 CR3: 000000007d2ae000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1023
on_each_cpu include/linux/smp.h:71 [inline]
kasan_quarantine_remove_cache+0x58/0x190 mm/kasan/quarantine.c:356
shutdown_cache mm/slab_common.c:454 [inline]
kmem_cache_destroy+0x6a/0x1b0 mm/slab_common.c:496
f2fs_put_super+0xb64/0x1130 fs/f2fs/super.c:1673
generic_shutdown_super+0x136/0x2d0 fs/super.c:641
kill_block_super+0x44/0x90 fs/super.c:1675
kill_f2fs_super+0x344/0x690 fs/f2fs/super.c:4857
deactivate_locked_super+0xc4/0x130 fs/super.c:472
cleanup_mnt+0x426/0x4c0 fs/namespace.c:1267
task_work_run+0x24f/0x310 kernel/task_work.c:180
resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x168/0x360 kernel/entry/common.c:218
do_syscall_64+0x10a/0x240 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x72/0x7a
RIP: 0033:0x7f838587f197
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffc64588cb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f838587f197
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffc64588d70
RBP: 00007ffc64588d70 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc64589e30
R13: 00007f83858c93b9 R14: 00000000000d5500 R15: 0000000000000006