rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...!: (0 ticks this GP) idle=bed4/1/0x4000000000000000 softirq=36464/36464 fqs=0
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P11868/2:b..l
rcu: (detected by 0, t=10502 jiffies, g=55673, q=426 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 11813 Comm: syz-executor.0 Not tainted 6.9.0-rc3-next-20240409-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:rb_add_cached include/linux/rbtree.h:172 [inline]
RIP: 0010:timerqueue_add+0x6e/0x290 lib/timerqueue.c:40
Code: 89 fe e8 15 a3 19 f6 4c 39 fb 0f 85 21 02 00 00 e8 a7 a0 19 f6 4c 89 e3 48 c1 eb 03 48 b8 00 00 00 00 00 fc ff df 80 3c 03 00 <74> 08 4c 89 e7 e8 48 79 7e f6 4d 8b 34 24 4d 85 f6 0f 84 67 01 00
RSP: 0018:ffffc90000a18cc0 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: 1ffff110172a593a RCX: ffff88807c713c00
RDX: 0000000080010003 RSI: ffff888065269340 RDI: ffff888065269340
RBP: 1ffff1100ca4d268 R08: ffffffff8b7c844b R09: 1ffffffff1f57cad
R10: dffffc0000000000 R11: fffffbfff1f57cae R12: ffff8880b952c9d0
R13: ffff8880b952c9d0 R14: ffff888065269340 R15: ffff888065269340
FS: 00007f8db6c716c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f11c56a7660 CR3: 000000004a658000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
enqueue_hrtimer+0x1b2/0x3c0 kernel/time/hrtimer.c:1098
__run_hrtimer kernel/time/hrtimer.c:1709 [inline]
__hrtimer_run_queues+0x6d5/0xd50 kernel/time/hrtimer.c:1756
hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1818
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
__sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 2e b2 6c f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 d3 76 d7 f5 65 8b 05 94 87 75 74 85 c0 74 43 48 c7 04 24 0e 36
RSP: 0018:ffffc900039bf760 EFLAGS: 00000206
RAX: dfade14f04a75b00 RBX: 1ffff92000737ef0 RCX: ffffffff8173045a
RDX: dffffc0000000000 RSI: ffffffff8bcad7c0 RDI: 0000000000000001
RBP: ffffc900039bf800 R08: ffffffff92f6c5df R09: 1ffffffff25ed8bb
R10: dffffc0000000000 R11: fffffbfff25ed8bc R12: dffffc0000000000
R13: 1ffff92000737eec R14: ffffc900039bf780 R15: 0000000000000246
spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
get_partial_node+0x248/0x280 mm/slub.c:2704
get_partial mm/slub.c:2784 [inline]
___slab_alloc+0xc17/0x14b0 mm/slub.c:3604
__slab_alloc+0x58/0xa0 mm/slub.c:3714
__slab_alloc_node mm/slub.c:3767 [inline]
slab_alloc_node mm/slub.c:3945 [inline]
__do_kmalloc_node mm/slub.c:4077 [inline]
__kmalloc_noprof+0x25e/0x400 mm/slub.c:4091
kmalloc_noprof include/linux/slab.h:664 [inline]
tomoyo_realpath_from_path+0xcf/0x5e0 security/tomoyo/realpath.c:251
tomoyo_mount_acl security/tomoyo/mount.c:105 [inline]
tomoyo_mount_permission+0x3bc/0xb80 security/tomoyo/mount.c:237
security_sb_mount+0x8f/0xd0 security/security.c:1460
path_mount+0xb9/0xfb0 fs/namespace.c:3621
do_mount fs/namespace.c:3692 [inline]
__do_sys_mount fs/namespace.c:3898 [inline]
__se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3875
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x72/0x7a
RIP: 0033:0x7f8db5e7de69
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:00007f8db6c710c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f8db5fabf80 RCX: 00007f8db5e7de69
RDX: 0000000020000000 RSI: 00000000200001c0 RDI: 0000000000000000
RBP: 00007f8db5eca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f8db5fabf80 R15: 00007ffd8dacd428
task:syz-executor.1 state:R running task stack:25336 pid:11868 tgid:11868 ppid:5087 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x17e8/0x4a50 kernel/sched/core.c:6746
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7068
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707
RIP: 0010:xas_load lib/xarray.c:245 [inline]
RIP: 0010:xas_find+0x225/0xaa0 lib/xarray.c:1250
Code: 38 ec 0f 87 10 01 00 00 48 8b 5c 24 18 48 89 df 4c 89 ee e8 5d 88 ff ff 49 89 c7 48 b9 00 00 00 00 00 fc ff df 41 0f b6 04 0e <49> 89 ce 84 c0 75 47 41 80 7d 00 00 0f 84 f2 00 00 00 e8 64 27 17
RSP: 0000:ffffc90012c17668 EFLAGS: 00000286
RAX: 0000000000000000 RBX: ffffc90012c178a0 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 0000000000000000 R08: ffffffff8b7e8741 R09: ffffffff8b7efc60
R10: 0000000000000002 R11: ffff88802d28da00 R12: 0000000000000000
R13: ffff88801d663180 R14: 1ffff11003acc630 R15: ffffea0001e50500
next_uptodate_folio+0x33/0xb10 mm/filemap.c:3464
filemap_map_pages+0x2f9/0x1bf0 mm/filemap.c:3612
do_fault_around mm/memory.c:4864 [inline]
do_read_fault mm/memory.c:4897 [inline]
do_fault mm/memory.c:5036 [inline]
do_pte_missing mm/memory.c:3887 [inline]
handle_pte_fault+0x3fa6/0x6750 mm/memory.c:5360
__handle_mm_fault mm/memory.c:5501 [inline]
handle_mm_fault+0x10e7/0x1bb0 mm/memory.c:5666
do_user_addr_fault arch/x86/mm/fault.c:1368 [inline]
handle_page_fault arch/x86/mm/fault.c:1511 [inline]
exc_page_fault+0x459/0x900 arch/x86/mm/fault.c:1569
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f11c56a7660
RSP: 002b:00007ffc23895b18 EFLAGS: 00010206
RAX: 00007f11c56a7660 RBX: 00007f11c5779030 RCX: 00000000000016f9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007f11c5600000
RBP: 00007f11c56003a0 R08: 00007f11c5623e50 R09: 00007f11c56f2c44
R10: 00007f11c56240f0 R11: 00007f11c56003a0 R12: 00007f11c57800c0
R13: 00007f11c56240f0 R14: 00007f11c5623ee0 R15: 00007f11c5600000
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g55673 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=1 timer-softirq=22276
rcu: rcu_preempt kthread starved for 10502 jiffies! g55673 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:24176 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x17e8/0x4a50 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6838
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2582
rcu_gp_fqs_loop+0x2df/0x1370 kernel/rcu/tree.c:2030
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2232
kthread+0x2f0/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243