rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (0 ticks this GP) idle=70cc/1/0x4000000000000000 softirq=197623/197623 fqs=0
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P27202/1:b..l P27201/1:b..l
rcu: (detected by 1, t=10502 jiffies, g=273865, q=494 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 27190 Comm: syz.1.4275 Not tainted 6.10.0-syzkaller-12881-g6342649c33d2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:87 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:104 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:129 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x86/0x290 mm/kasan/generic.c:189
Code: 00 fc ff df 4f 8d 3c 31 4c 89 fd 4c 29 dd 48 83 fd 10 7f 29 48 85 ed 0f 84 3e 01 00 00 4c 89 cd 48 f7 d5 48 01 dd 41 80 3b 00 <0f> 85 c9 01 00 00 49 ff c3 48 ff c5 75 ee e9 1e 01 00 00 45 89 dc
RSP: 0018:ffffc900048a75a0 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 1ffffffff26e4d2b RCX: ffffffff816fb980
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff93726958
RBP: ffffffffffffffff R08: ffffffff9372695f R09: 1ffffffff26e4d2b
R10: dffffc0000000000 R11: fffffbfff26e4d2b R12: 0000000000000000
R13: ffff8880230f4700 R14: dffffc0000000001 R15: fffffbfff26e4d2c
FS: 0000000000000000(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f59ead3f068 CR3: 000000002dec4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:68 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
hlock_class kernel/locking/lockdep.c:227 [inline]
check_wait_context kernel/locking/lockdep.c:4797 [inline]
__lock_acquire+0x890/0x2040 kernel/locking/lockdep.c:5092
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
vga_put drivers/pci/vgaarb.c:547 [inline]
vga_arb_release+0x233/0xaf0 drivers/pci/vgaarb.c:1455
__fput+0x24a/0x8a0 fs/file_table.c:422
task_work_run+0x24f/0x310 kernel/task_work.c:222
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xa2f/0x27f0 kernel/exit.c:882
do_group_exit+0x207/0x2c0 kernel/exit.c:1031
get_signal+0x16a1/0x1740 kernel/signal.c:2917
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
exit_to_user_mode_loop kernel/entry/common.c:111 [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+0xc9/0x370 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7effbbd77299
Code: Unable to access opcode bytes at 0x7effbbd7726f.
RSP: 002b:00007effbcb3e048 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffa3 RBX: 00007effbbf05f80 RCX: 00007effbbd77299
RDX: 0000000000000009 RSI: 0800000000000002 RDI: 000000000000000a
RBP: 00007effbbde48e6 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007effbbf05f80 R15: 00007effbc02fa38
task:modprobe state:R running task stack:23680 pid:27201 tgid:27201 ppid:26103 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6529
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6851
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: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_local_irq_save arch/x86/include/asm/irqflags.h:123 [inline]
RIP: 0010:lock_is_held_type+0x6a/0x190 kernel/locking/lockdep.c:5827
Code: 00 65 4c 8b 2c 25 40 d7 03 00 41 83 bd dc 0a 00 00 00 0f 85 da 00 00 00 41 89 f6 49 89 ff 48 c7 04 24 00 00 00 00 9c 8f 04 24 <4c> 8b 24 24 fa 48 c7 c7 00 e2 0a 8c e8 55 1b 00 00 65 ff 05 ce 61
RSP: 0018:ffffc9000493f3a8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00000000ffffffff RCX: ffff888011aa8000
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffff88807d443118
RBP: 0000000000000300 R08: ffffffff8bace385 R09: ffffffff8bace2bb
R10: 0000000000000004 R11: ffff888011aa8000 R12: ffff88807d442fc0
R13: ffff888011aa8000 R14: 00000000ffffffff R15: ffff88807d443118
lock_is_held include/linux/lockdep.h:249 [inline]
mt_locked lib/maple_tree.c:781 [inline]
mt_slot lib/maple_tree.c:788 [inline]
mas_slot lib/maple_tree.c:821 [inline]
mas_get_slot+0x15e/0x250 lib/maple_tree.c:7054
mt_validate+0x27d2/0x4aa0 lib/maple_tree.c:7593
validate_mm+0xe7/0x530 mm/mmap.c:329
do_vmi_align_munmap+0x15dd/0x18c0 mm/mmap.c:2759
do_vmi_munmap+0x261/0x2f0 mm/mmap.c:2830
mmap_region+0x72f/0x2090 mm/mmap.c:2881
do_mmap+0x8f9/0x1010 mm/mmap.c:1468
vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:588
ksys_mmap_pgoff+0x4f1/0x720 mm/mmap.c:1514
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: 0033:0x7fbbc5426b74
RSP: 002b:00007ffe06e6ce98 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007ffe06e6cf48 RCX: 00007fbbc5426b74
RDX: 0000000000000003 RSI: 0000000000002000 RDI: 00007fbbc517a000
RBP: 00007ffe06e6d270 R08: 0000000000000000 R09: 0000000000022000
R10: 0000000000000812 R11: 0000000000000246 R12: 00007fbbc5402fc0
R13: 00007ffe06e6d2f8 R14: 0000000000021bd8 R15: 0000000000000000
task:modprobe state:R running task stack:23680 pid:27202 tgid:27202 ppid:3008 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6529
preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6708
preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6732
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
__raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
finish_fault+0xb7f/0x1480 mm/memory.c:4931
do_cow_fault mm/memory.c:5100 [inline]
do_fault mm/memory.c:5193 [inline]
do_pte_missing mm/memory.c:3947 [inline]
handle_pte_fault+0xeb7/0x6eb0 mm/memory.c:5522
__handle_mm_fault mm/memory.c:5665 [inline]
handle_mm_fault+0x1029/0x1980 mm/memory.c:5833
do_user_addr_fault arch/x86/mm/fault.c:1338 [inline]
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x459/0x8c0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f59eafd6105
RSP: 002b:00007ffe81091c10 EFLAGS: 00010202
RAX: 0000000000000000 RBX: 00007ffe81091cb8 RCX: 0000000000000f98
RDX: 0000000000000003 RSI: 0000000000001000 RDI: 00007f59ead3f068
RBP: 00007ffe81091fe0 R08: 00007f59ead3f068 R09: 0000000000022000
R10: 00007f59ead40000 R11: 0000000000000003 R12: 00007f59eafc6fc0
R13: 00007ffe81092068 R14: 00007f59ead41610 R15: 00007f59ead40000
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g273865 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=0 timer-softirq=106187
rcu: rcu_preempt kthread starved for 10502 jiffies! g273865 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:24912 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2034
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2236
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