rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P6204/1:b..l
rcu: (detected by 1, t=10503 jiffies, g=20157, q=846 ncpus=2)
task:syz-executor.2 state:R running task stack:22608 pid:6204 tgid:6203 ppid:5593 flags:0x00004006
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x1796/0x49d0 kernel/sched/core.c:6745
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7067
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:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5758
Code: 2b 00 74 08 4c 89 f7 e8 ba 3a 86 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:ffffc90004197a60 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92000832f58 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8bcacce0 RDI: ffffffff8c1f1e80
RBP: ffffc90004197bb0 R08: ffffffff92f74587 R09: 1ffffffff25ee8b0
R10: dffffc0000000000 R11: fffffbfff25ee8b1 R12: 1ffff92000832f54
R13: dffffc0000000000 R14: ffffc90004197ac0 R15: 0000000000000246
rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
rcu_read_lock include/linux/rcupdate.h:781 [inline]
get_mem_cgroup_from_mm+0x55/0x2a0 mm/memcontrol.c:1265
__mem_cgroup_charge+0x16/0x80 mm/memcontrol.c:7509
mem_cgroup_charge include/linux/memcontrol.h:691 [inline]
filemap_add_folio+0xb3/0x650 mm/filemap.c:965
__filemap_get_folio+0x4af/0xbb0 mm/filemap.c:1958
aio_setup_ring+0x3a1/0xcf0 fs/aio.c:533
ioctx_alloc+0x343/0x7b0 fs/aio.c:801
__do_sys_io_setup fs/aio.c:1408 [inline]
__se_sys_io_setup+0x7b/0x1a0 fs/aio.c:1391
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: 0033:0x7fbb4547cf69
RSP: 002b:00007fbb461360c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ce
RAX: ffffffffffffffda RBX: 00007fbb455b3f80 RCX: 00007fbb4547cf69
RDX: 0000000000000000 RSI: 0000000020000780 RDI: 000000000000ffff
RBP: 00007fbb454da6fe R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fbb455b3f80 R15: 00007ffc2188e528
</TASK>
rcu: rcu_preempt kthread starved for 10531 jiffies! g20157 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:25656 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x1796/0x49d0 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2000
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2202
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 1024 Comm: kworker/1:1H Not tainted 6.10.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Workqueue: 0x0 (kblockd)
RIP: 0010:finish_task_switch+0x1ea/0x870 kernel/sched/core.c:5282
Code: c9 50 e8 99 c9 0b 00 48 83 c4 08 4c 89 f7 e8 cd 38 00 00 0f 1f 44 00 00 4c 89 f7 e8 30 13 22 0a e8 6b f8 36 00 fb 48 8b 5d c0 <48> 8d bb f8 15 00 00 48 89 f8 48 c1 e8 03 49 be 00 00 00 00 00 fc
RSP: 0018:ffffc90003c979c8 EFLAGS: 00000282
RAX: 36e86876a13fc600 RBX: ffff888021cf8000 RCX: ffffffff9476c603
RDX: dffffc0000000000 RSI: ffffffff8bcabb60 RDI: ffffffff8c1f1e80
RBP: ffffc90003c97a10 R08: ffffffff8fac1eaf R09: 1ffffffff1f583d5
R10: dffffc0000000000 R11: fffffbfff1f583d6 R12: 1ffff110172a7e9f
R13: dffffc0000000000 R14: ffff8880b953e780 R15: ffff8880b953f4f8
FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4911330440 CR3: 000000001c742000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
</IRQ>
<TASK>
context_switch kernel/sched/core.c:5411 [inline]
__schedule+0x179e/0x49d0 kernel/sched/core.c:6745
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7067
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:constant_test_bit arch/x86/include/asm/bitops.h:206 [inline]
RIP: 0010:arch_test_bit arch/x86/include/asm/bitops.h:238 [inline]
RIP: 0010:tif_need_resched include/linux/thread_info.h:184 [inline]
RIP: 0010:need_resched include/linux/sched.h:2110 [inline]
RIP: 0010:__schedule_loop kernel/sched/core.c:6824 [inline]
RIP: 0010:schedule+0x15a/0x320 kernel/sched/core.c:6837
Code: 48 f7 45 00 08 00 00 00 74 2c bf 01 00 00 00 e8 0c 83 de f5 31 ff e8 d5 b4 ff ff bf 01 00 00 00 e8 9b 84 de f5 42 80 3c 23 00 <74> d4 48 89 ef e8 3c 8b 71 f6 eb ca 4c 8d 75 2c 4d 89 f5 49 c1 ed
RSP: 0018:ffffc90003c97d98 EFLAGS: 00000246
RAX: 0000000000000001 RBX: 1ffff1100439f000 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8bcabb60 RDI: 0000000000000001
RBP: ffff888021cf8000 R08: ffffffff8fac1eaf R09: 1ffffffff1f583d5
R10: dffffc0000000000 R11: fffffbfff1f583d6 R12: dffffc0000000000
R13: ffff8880b953e320 R14: ffffffff8b871500 R15: ffff888021cf9278
worker_thread+0xa2c/0xd70 kernel/workqueue.c:3408
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>