rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P12/1:b..l P31689/1:b..l P5107/1:b..l
rcu: (detected by 1, t=10502 jiffies, g=137825, q=1 ncpus=2)
task:syz-executor.4 state:R running task stack:19728 pid:5107 tgid:5107 ppid:5090 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1961/0x4ab0 kernel/sched/core.c:6688
preempt_schedule_irq+0xfb/0x1b0 kernel/sched/core.c:7008
irqentry_exit+0x5a/0x80 kernel/entry/common.c:432
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:650
RIP: 0010:lock_is_held_type+0x13a/0x190
Code: 75 40 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 75 48 41 f7 c4 00 02 00 00 74 01 fb 65 48 8b 04 25 28 00 00 00 <48> 3b 44 24 08 75 3e 89 d8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f
RSP: 0018:ffffc90003ddf600 EFLAGS: 00000206
RAX: a155a5b3b9f23600 RBX: 0000000000000001 RCX: 0000000080000000
RDX: ffff888016f58000 RSI: ffffffff8b6abf40 RDI: ffffffff8bbdf120
RBP: 0000000000000000 R08: ffffffff8b12e25f R09: ffffffff8b12ddc0
R10: 0000000000000002 R11: ffff888016f58000 R12: 0000000000000246
R13: ffff888016f58000 R14: 00000000ffffffff R15: ffffffff8d92cf60
xa_entry include/linux/xarray.h:1216 [inline]
xas_find+0x5b6/0xaa0 lib/xarray.c:1267
find_get_entry mm/filemap.c:1958 [inline]
find_lock_entries+0x28b/0x1110 mm/filemap.c:2059
shmem_undo_range+0x2ba/0x19d0 mm/shmem.c:986
shmem_truncate_range mm/shmem.c:1096 [inline]
shmem_evict_inode+0x29b/0xa60 mm/shmem.c:1224
evict+0x2a4/0x630 fs/inode.c:666
__dentry_kill+0x436/0x660 fs/dcache.c:607
dentry_kill+0xbb/0x290
dput+0x21e/0x470 fs/dcache.c:913
__fput+0x60b/0xa10 fs/file_table.c:402
task_work_run+0x24a/0x300 kernel/task_work.c:180
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xb1/0x150 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x69/0x2a0 kernel/entry/common.c:296
do_syscall_64+0x52/0x110 arch/x86/entry/common.c:88
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7ff412e7de17
RSP: 002b:00007ffc88092a28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007ff412e7de17
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffc88092ae0
RBP: 00007ffc88092ae0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc88093ba0
R13: 00007ff412ec73b9 R14: 0000000000164046 R15: 0000000000000008
task:syz-executor.3 state:R running task stack:26960 pid:31689 tgid:31688 ppid:5106 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1961/0x4ab0 kernel/sched/core.c:6688
preempt_schedule_irq+0xfb/0x1b0 kernel/sched/core.c:7008
irqentry_exit+0x5a/0x80 kernel/entry/common.c:432
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:650
RIP: 0010:lock_acquire+0x25a/0x530 kernel/locking/lockdep.c:5758
Code: 2b 00 74 08 4c 89 f7 e8 14 5b 7d 00 f6 44 24 61 02 0f 85 8a 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: 0000:ffffc900032efc80 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff9200065df9c RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8b6abf40 RDI: ffffffff8bbdf120
RBP: ffffc900032efdc8 R08: ffffffff90dd7367 R09: 1ffffffff21bae6c
R10: dffffc0000000000 R11: fffffbfff21bae6d R12: 1ffff9200065df98
R13: dffffc0000000000 R14: ffffc900032efce0 R15: 0000000000000246
rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
rcu_read_lock include/linux/rcupdate.h:747 [inline]
lock_vma_under_rcu+0x1a8/0x6f0 mm/memory.c:5494
do_user_addr_fault arch/x86/mm/fault.c:1356 [inline]
handle_page_fault arch/x86/mm/fault.c:1505 [inline]
exc_page_fault+0x185/0x870 arch/x86/mm/fault.c:1561
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x7f4e066286e6
RSP: 002b:00007f4e073c8520 EFLAGS: 00010206
RAX: 0000000000518001 RBX: 00007f4e073c85c0 RCX: 00000000000000fe
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00007f4e073c8660
RBP: 0000000000000102 R08: 00007f4dfcdff000 R09: 0000000000518000
R10: 0000000000000000 R11: 00007f4e073c85d0 R12: 0000000000000001
R13: 00007f4e066ea5a0 R14: 0000000000000000 R15: 00007f4e073c8660
task:kworker/u4:1 state:R running task stack:19928 pid:12 tgid:12 ppid:2 flags:0x00004000
Workqueue: bat_events batadv_nc_worker
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1961/0x4ab0 kernel/sched/core.c:6688
preempt_schedule_irq+0xfb/0x1b0 kernel/sched/core.c:7008
irqentry_exit+0x5a/0x80 kernel/entry/common.c:432
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:650
RIP: 0010:lock_acquire+0x29a/0x530 kernel/locking/lockdep.c:5758
Code: 11 00 00 00 00 66 43 c7 44 25 15 00 00 43 c6 44 25 17 00 65 48 8b 04 25 28 00 00 00 48 3b 84 24 00 01 00 00 0f 85 7c 02 00 00 <48> 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 65 8b 05 c0 61 95 7e
RSP: 0018:ffffc90000117a20 EFLAGS: 00000246
RAX: 176e4edb1f11d500 RBX: 1ffff92000022f50 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8b6abf40 RDI: ffffffff8bbdf120
RBP: ffffc90000117b80 R08: ffffffff90dd7367 R09: 1ffffffff21bae6c
R10: dffffc0000000000 R11: fffffbfff21bae6d R12: 1ffff92000022f4c
R13: dffffc0000000000 R14: ffffc90000117a80 R15: 0000000000000246
rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
rcu_read_lock include/linux/rcupdate.h:747 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0xec/0x610 net/batman-adv/network-coding.c:719
process_one_work kernel/workqueue.c:2630 [inline]
process_scheduled_works+0x90f/0x1420 kernel/workqueue.c:2703
worker_thread+0xa5f/0x1000 kernel/workqueue.c:2784
kthread+0x2d3/0x370 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
rcu: rcu_preempt kthread starved for 10588 jiffies! g137825 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:25400 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1961/0x4ab0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6778
schedule_timeout+0x1bd/0x300 kernel/time/timer.c:2167
rcu_gp_fqs_loop+0x30a/0x1500 kernel/rcu/tree.c:1631
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:1830
kthread+0x2d3/0x370 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
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: 31692 Comm: syz-executor.5 Not tainted 6.7.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:mark_lock+0x12c/0x350 kernel/locking/lockdep.c:4656
Code: c7 c7 60 ac 6a 8b 48 c7 c6 00 af 6a 8b e8 7c c2 e6 ff 90 0f 0b 90 90 90 31 db 48 83 c3 60 48 89 d8 48 c1 e8 03 42 80 3c 28 00 <74> 08 48 89 df e8 7a ec 7c 00 41 bc 01 00 00 00 44 85 33 74 12 44
RSP: 0018:ffffc90000007a28 EFLAGS: 00000046
RAX: 1ffffffff215651c RBX: ffffffff90ab28e0 RCX: ffffffff816d950a
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff90dd7368
RBP: 0000000000000008 R08: ffffffff90dd736f R09: 1ffffffff21bae6d
R10: dffffc0000000000 R11: fffffbfff21bae6e R12: 0000000000000001
R13: dffffc0000000000 R14: 0000000000000100 R15: ffff888026822880
FS: 00007fe52b6846c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0ca3556d58 CR3: 0000000021876000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
mark_usage kernel/locking/lockdep.c:4599 [inline]
__lock_acquire+0xc09/0x1fd0 kernel/locking/lockdep.c:5091
lock_acquire+0x1e3/0x530 kernel/locking/lockdep.c:5754
__raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline]
_raw_spin_lock_irq+0xd3/0x120 kernel/locking/spinlock.c:170
__run_hrtimer kernel/time/hrtimer.c:1692 [inline]
__hrtimer_run_queues+0x66c/0xd20 kernel/time/hrtimer.c:1752
hrtimer_interrupt+0x396/0x980 kernel/time/hrtimer.c:1814
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1065 [inline]
__sysvec_apic_timer_interrupt+0x104/0x3a0 arch/x86/kernel/apic/apic.c:1082
sysvec_apic_timer_interrupt+0x92/0xb0 arch/x86/kernel/apic/apic.c:1076
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 kernel/locking/spinlock.c:202
Code: 00 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 5a 84 4b f6 48 89 df e8 52 bf 4c f6 e8 0d 94 73 f6 fb bf 01 00 00 00 72 e4 3e f6 65 8b 05 33 f2 e1 74 85 c0 74 02 5b c3 e8 00 c0 de
RSP: 0018:ffffc900032cfc50 EFLAGS: 00000282
RAX: 87bec790b5459b00 RBX: ffff88803b213780 RCX: ffffffff925cf303
RDX: dffffc0000000000 RSI: ffffffff8b6aadc0 RDI: 0000000000000001
RBP: ffffc900032cfd90 R08: ffffffff8f00b8ef R09: 1ffffffff1e0171d
R10: dffffc0000000000 R11: fffffbfff1e0171e R12: 1ffff11007642783
R13: 000000001c000004 R14: 0000000000000021 R15: ffff88803b213c18
spin_unlock_irq include/linux/spinlock.h:401 [inline]
get_signal+0x1569/0x1840 kernel/signal.c:2907
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:309
exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168
exit_to_user_mode_prepare+0xb1/0x150 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x69/0x2a0 kernel/entry/common.c:296
do_syscall_64+0x52/0x110 arch/x86/entry/common.c:88
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fe52a87cae7
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:00007fe52b684178 EFLAGS: 00000246
RAX: 00000000000000ca RBX: 00007fe52a99bf88 RCX: 00007fe52a87cae9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fe52a99bf88
RBP: 00007fe52a99bf80 R08: 00007fe52b6846c0 R09: 00007fe52b6846c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe52a99bf8c
R13: 000000000000000b R14: 00007fffa63e0a50 R15: 00007fffa63e0b38