rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P9659/1:b..l
rcu: (detected by 0, t=10503 jiffies, g=38341, q=373 ncpus=2)
task:syz-executor.4 state:R running task stack:25424 pid:9659 tgid:9658 ppid:7866 flags:0x00004006
Call Trace:
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 4a 36 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:ffffc90004386de0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92000870dc8 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8bcacbe0 RDI: ffffffff8c1f1e40
RBP: ffffc90004386f28 R08: ffffffff92f72587 R09: 1ffffffff25ee4b0
R10: dffffc0000000000 R11: fffffbfff25ee4b1 R12: 1ffff92000870dc4
R13: dffffc0000000000 R14: ffffc90004386e40 R15: 0000000000000246
rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
rcu_read_lock include/linux/rcupdate.h:781 [inline]
is_bpf_text_address+0x46/0x2a0 kernel/bpf/core.c:768
kernel_text_address+0xa7/0xe0 kernel/extable.c:125
__kernel_text_address+0xd/0x40 kernel/extable.c:79
unwind_get_return_address+0x5d/0xc0 arch/x86/kernel/unwind_orc.c:369
arch_stack_walk+0x125/0x1b0 arch/x86/kernel/stacktrace.c:26
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
save_stack+0xfb/0x1f0 mm/page_owner.c:156
__set_page_owner+0x92/0x800 mm/page_owner.c:320
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1468
prep_new_page mm/page_alloc.c:1476 [inline]
get_page_from_freelist+0x2e2d/0x2ee0 mm/page_alloc.c:3402
__alloc_pages_noprof+0x256/0x6c0 mm/page_alloc.c:4660
alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265
shmem_alloc_folio mm/shmem.c:1628 [inline]
shmem_alloc_and_add_folio+0x24d/0xdb0 mm/shmem.c:1668
shmem_get_folio_gfp+0x82d/0x1f50 mm/shmem.c:2055
shmem_get_folio mm/shmem.c:2160 [inline]
shmem_write_begin+0x170/0x4d0 mm/shmem.c:2743
generic_perform_write+0x322/0x640 mm/filemap.c:4015
shmem_file_write_iter+0xfc/0x120 mm/shmem.c:2919
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xa72/0xc90 fs/read_write.c:590
ksys_write+0x1a0/0x2c0 fs/read_write.c:643
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: 0033:0x7fc67927bc2f
RSP: 002b:00007fc679ff2e80 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000001000000 RCX: 00007fc67927bc2f
RDX: 0000000001000000 RSI: 00007fc66f000000 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000000060b3
R10: 0000000020013cc2 R11: 0000000000000293 R12: 0000000000000003
R13: 00007fc679ff2f80 R14: 00007fc679ff2f40 R15: 00007fc66f000000
rcu: rcu_preempt kthread starved for 10553 jiffies! g38341 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:26576 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
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
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 9681 Comm: syz-executor.3 Not tainted 6.10.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:__lock_acquire+0x35d/0x1fd0 kernel/locking/lockdep.c:5072
Code: 2f 86 00 4c 8b 44 24 08 48 be 00 00 00 00 00 fc ff df 48 89 2b 48 8b 6c 24 28 49 8d 5c e8 10 48 89 d8 48 c1 e8 03 80 3c 30 00 <74> 17 48 89 df e8 69 2f 86 00 4c 8b 44 24 08 48 be 00 00 00 00 00
RSP: 0018:ffffc900044177f0 EFLAGS: 00000046
RAX: 1ffff110057a151e RBX: ffff88802bd0a8f0 RCX: ffffffff9476a603
RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 00000000000001ac
RBP: 0000000000000000 R08: ffff88802bd0a8e0 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1f5833e R12: ffff888079ac1e18
R13: 00000000000001ac R14: 0000000000000000 R15: 0000000000000000
FS: 00007f37c43df6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020404030 CR3: 000000002caae000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
__might_fault+0xc6/0x120 mm/memory.c:6233
__copy_from_user include/linux/uaccess.h:97 [inline]
check_xstate_in_sigframe arch/x86/kernel/fpu/signal.c:35 [inline]
__fpu_restore_sig arch/x86/kernel/fpu/signal.c:348 [inline]
fpu__restore_sig+0x1a1/0x11b0 arch/x86/kernel/fpu/signal.c:493
restore_sigcontext+0x675/0x7d0 arch/x86/kernel/signal_64.c:95
__do_sys_rt_sigreturn+0x17f/0x270 arch/x86/kernel/signal_64.c:263
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: 0033:0x7f37c367cee7
Code: 14 25 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
RSP: 002b:00007f37c43df178 EFLAGS: 00000246
RAX: 00000000000000ca RBX: 00007f37c37b3fa8 RCX: 00007f37c367cee9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f37c37b3fa8
RBP: 00007f37c37b3fa0 R08: 00007f37c43df6c0 R09: 00007f37c43df6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f37c37b3fac
R13: 000000000000000b R14: 00007ffea7220600 R15: 00007ffea72206e8
sched: RT throttling activated