rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P23006/1:b..l
rcu: (detected by 1, t=10503 jiffies, g=200265, q=379 ncpus=2)
task:syz-executor.0 state:R running task stack:26064 pid:23006 tgid:23005 ppid:21404 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6745
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7067
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:lock_is_held_type+0x107/0x150 kernel/locking/lockdep.c:5830
Code: 00 00 b8 ff ff ff ff 65 0f c1 05 8c a0 1a 75 83 f8 01 75 2d 9c 58 f6 c4 02 75 43 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 <44> 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 45 31 ed eb
RSP: 0018:ffffc900037875b8 EFLAGS: 00000286
RAX: 0000000000000046 RBX: ffff888020e02908 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8b2cb260 RDI: ffffffff8b9001c0
RBP: ffffffff8dc023d8 R08: 0000000000000000 R09: fffffbfff284d858
R10: ffffffff9426c2c7 R11: 0000000000000001 R12: ffff888020e01e00
R13: 0000000000000000 R14: 00000000ffffffff R15: 0000000000000002
lock_is_held include/linux/lockdep.h:231 [inline]
task_css include/linux/cgroup.h:434 [inline]
mem_cgroup_from_task mm/memcontrol.c:1214 [inline]
get_mem_cgroup_from_mm+0x1d1/0x4c0 mm/memcontrol.c:1267
__mem_cgroup_charge+0x1a/0x280 mm/memcontrol.c:7511
mem_cgroup_charge include/linux/memcontrol.h:691 [inline]
shmem_alloc_and_add_folio+0x1dd/0x790 mm/shmem.c:1677
shmem_get_folio_gfp+0x687/0x13d0 mm/shmem.c:2055
shmem_fault+0x205/0xaf0 mm/shmem.c:2255
__do_fault+0x10a/0x490 mm/memory.c:4562
do_read_fault mm/memory.c:4926 [inline]
do_fault mm/memory.c:5056 [inline]
do_pte_missing mm/memory.c:3903 [inline]
handle_pte_fault mm/memory.c:5380 [inline]
__handle_mm_fault+0x39e2/0x53f0 mm/memory.c:5523
handle_mm_fault+0x476/0xa00 mm/memory.c:5688
faultin_page mm/gup.c:1290 [inline]
__get_user_pages+0x473/0x1490 mm/gup.c:1589
populate_vma_page_range+0x27f/0x3a0 mm/gup.c:2029
__mm_populate+0x1d6/0x380 mm/gup.c:2132
mm_populate include/linux/mm.h:3464 [inline]
vm_mmap_pgoff+0x293/0x360 mm/util.c:578
ksys_mmap_pgoff+0x7d/0x5d0 mm/mmap.c:1443
__do_sys_mmap arch/x86/kernel/sys_x86_64.c:86 [inline]
__se_sys_mmap arch/x86/kernel/sys_x86_64.c:79 [inline]
__x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:79
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: 0033:0x7f1fc2e7cf69
RSP: 002b:00007f1fc3c1b0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f1fc2fb3f80 RCX: 00007f1fc2e7cf69
RDX: b635773f06ebbeee RSI: 0000000000b36000 RDI: 0000000020000000
RBP: 00007f1fc2eda6fe R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f1fc2fb3f80 R15: 00007ffefb18b9f8
rcu: rcu_preempt kthread starved for 10535 jiffies! g200265 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:27680 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6837
schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2581
rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2000
rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2202
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:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 23007 Comm: syz-executor.3 Not tainted 6.10.0-rc2-syzkaller-00269-g96e09b8f8166 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:__lock_acquire+0xc55/0x3b30 kernel/locking/lockdep.c:5134
Code: 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 31 2c 00 00 8b 1d d1 04 79 0e 85 db 75 40 44 8b 5c 24 10 45 85 db 0f 85 11 07 00 00 <4c> 89 f7 e8 23 4e ff ff 48 ba 00 00 00 00 00 fc ff df 48 8d 78 40
RSP: 0018:ffffc90000007bd8 EFLAGS: 00000046
RAX: 0000000000000007 RBX: 0000000000000000 RCX: ffffffff816b993a
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 00000000ffffffff
RBP: 0000000000000040 R08: 0000000000000000 R09: fffffbfff284d85a
R10: ffffffff9426c2d7 R11: 0000000000000000 R12: 0000000000000002
R13: 00000000000000b2 R14: ffff888020e046e0 R15: 0000000000000002
FS: 0000555566725480(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2cf42000 CR3: 0000000064b52000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
reacquire_held_locks+0x20b/0x4c0 kernel/locking/lockdep.c:5279
__lock_release kernel/locking/lockdep.c:5468 [inline]
lock_release+0x33e/0x6c0 kernel/locking/lockdep.c:5774
rcu_lock_release include/linux/rcupdate.h:339 [inline]
rcu_read_unlock include/linux/rcupdate.h:812 [inline]
__lock_task_sighand+0x141/0x340 kernel/signal.c:1417
lock_task_sighand include/linux/sched/signal.h:746 [inline]
do_send_sig_info kernel/signal.c:1300 [inline]
group_send_sig_info+0x290/0x300 kernel/signal.c:1451
do_bpf_send_signal+0x9a/0x1d0 kernel/trace/bpf_trace.c:838
irq_work_single+0x1bc/0x260 kernel/irq_work.c:221
irq_work_run_list+0x92/0xc0 kernel/irq_work.c:252
irq_work_run+0x58/0xd0 kernel/irq_work.c:261
__sysvec_irq_work+0x8c/0x410 arch/x86/kernel/irq_work.c:22
instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
sysvec_irq_work+0x90/0xb0 arch/x86/kernel/irq_work.c:17
asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738
RIP: 0010:finish_task_switch.isra.0+0x220/0xcc0 kernel/sched/core.c:5282
Code: a9 0a 00 00 44 8b 0d 57 4c 86 0e 45 85 c9 0f 85 c0 01 00 00 48 89 df e8 ae f8 ff ff e8 d9 e6 36 00 fb 65 48 8b 1d e0 89 a5 7e <48> 8d bb f8 15 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1
RSP: 0018:ffffc90003677820 EFLAGS: 00000202
RAX: 00000000007f8925 RBX: ffff888020e03c00 RCX: 1ffffffff1fc84c9
RDX: 0000000000000000 RSI: ffffffff8b2caf60 RDI: ffffffff8b9001c0
RBP: ffffc90003677868 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8fe468d7 R11: 0000000000000000 R12: ffff8880b923f978
R13: ffff888020e00000 R14: 0000000000000000 R15: ffff8880b923ec00
context_switch kernel/sched/core.c:5411 [inline]
__schedule+0xf1d/0x5d00 kernel/sched/core.c:6745
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7067
irqentry_exit+0x36/0x90 kernel/entry/common.c:354
asm_sysvec_call_function_single+0x1a/0x20 arch/x86/include/asm/idtentry.h:709
RIP: 0010:preempt_count_add+0x0/0x150 kernel/sched/core.c:5860
Code: 5d c3 cc cc cc cc e8 ff 07 8a 09 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 c7 c0 e0 ab b4 94 55 48 ba 00 00 00 00 00 fc ff df
RSP: 0018:ffffc90003677ae0 EFLAGS: 00000202
RAX: 000000000000400e RBX: ffff888020e03c00 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff8b2caf60 RDI: 0000000000000001
RBP: ffffed10041c0780 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff8fe468d7 R11: 0000000000000000 R12: ffff888020e03c2c
R13: ffff888020e03c00 R14: ffffffff81815371 R15: dffffc0000000000
__schedule_loop kernel/sched/core.c:6821 [inline]
schedule+0xe0/0x350 kernel/sched/core.c:6837
futex_wait_queue+0xfc/0x1f0 kernel/futex/waitwake.c:370
__futex_wait+0x291/0x3c0 kernel/futex/waitwake.c:669
futex_wait+0xe9/0x380 kernel/futex/waitwake.c:697
do_futex+0x22b/0x350 kernel/futex/syscalls.c:102
__do_sys_futex kernel/futex/syscalls.c:179 [inline]
__se_sys_futex kernel/futex/syscalls.c:160 [inline]
__x64_sys_futex+0x1e1/0x4c0 kernel/futex/syscalls.c:160
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: 0033:0x7f26d527cf69
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:00007ffe254e6618 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00000000001ffbfd RCX: 00007f26d527cf69
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f26d53b405c
RBP: 00000000001ffc2f R08: 00007f26d5fe2080 R09: 0000000c00000000
R10: 00007ffe254e6700 R11: 0000000000000246 R12: 00007ffe254e6700
R13: 00007f26d53b405c R14: 0000000000000032 R15: 00007ffe254e6720