rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-...!: (1 GPs behind) idle=c53/1/0x4000000000000000 softirq=8975/8976 fqs=1
(t=10501 jiffies g=9133 q=48 ncpus=2)
rcu: rcu_preempt kthread timer wakeup didn't happen for 10499 jiffies! g9133 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=1 timer-softirq=7034
rcu: rcu_preempt kthread starved for 10502 jiffies! g9133 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:29264 pid: 16 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5106 [inline]
__schedule+0xa9a/0x4cc0 kernel/sched/core.c:6421
schedule+0xd2/0x1f0 kernel/sched/core.c:6493
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1907
rcu_gp_fqs_loop+0x1c0/0x840 kernel/rcu/tree.c:2078
rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2267
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
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: 45 Comm: kworker/u4:2 Not tainted 5.18.0-rc3-next-20220422-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: tipc_send tipc_conn_send_work
RIP: 0010:lock_acquire+0x227/0x570 kernel/locking/lockdep.c:5669
Code: 00 00 00 00 48 8b 84 24 a8 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 e1 02 00 00 48 81 c4 b0 00 00 00 5b 5d 41 5c 41 5d 41 5e <41> 5f c3 65 8b 05 a7 4c a4 7e 85 c0 75 b0 65 8b 05 94 42 a4 7e a9
RSP: 0018:ffffc9000115f940 EFLAGS: 00000086
RAX: 0000000000000000 RBX: 0000000000001638 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8db95910
RBP: ffffffff90751c40 R08: 0000000000000000 R09: ffffffff8db95917
R10: fffffbfff1b72b22 R11: 0000000000000000 R12: 0000000000000202
R13: ffffffff89cebd40 R14: ffff888023b3fc58 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000207bd000 CR3: 000000004e7cc000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:162
debug_object_assert_init lib/debugobjects.c:877 [inline]
debug_object_assert_init+0x101/0x2e0 lib/debugobjects.c:866
debug_timer_assert_init kernel/time/timer.c:762 [inline]
debug_assert_init kernel/time/timer.c:807 [inline]
try_to_del_timer_sync+0x6d/0x110 kernel/time/timer.c:1252
del_timer_sync+0x138/0x1b0 kernel/time/timer.c:1405
tipc_sub_unsubscribe+0x68/0x270 net/tipc/subscr.c:180
tipc_conn_delete_sub+0x249/0x460 net/tipc/topsrv.c:237
tipc_conn_send_to_sock+0x386/0x570 net/tipc/topsrv.c:265
tipc_conn_send_work+0xd1/0x120 net/tipc/topsrv.c:303
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
NMI backtrace for cpu 0
CPU: 0 PID: 4651 Comm: syz-executor.5 Not tainted 5.18.0-rc3-next-20220422-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_dump_cpu_stacks+0x262/0x3f0 kernel/rcu/tree_stall.h:369
print_cpu_stall kernel/rcu/tree_stall.h:665 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:749 [inline]
rcu_pending kernel/rcu/tree.c:4068 [inline]
rcu_sched_clock_irq.cold+0x144/0x8fc kernel/rcu/tree.c:2755
update_process_times+0x16d/0x200 kernel/time/timer.c:1811
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:243
tick_sched_timer+0xee/0x120 kernel/time/tick-sched.c:1473
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x40/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:kvm_wait+0x98/0x100 arch/x86/kernel/kvm.c:1058
Code: fa 83 e2 07 38 d0 7f 04 84 c0 75 63 0f b6 07 40 38 c6 74 35 48 83 c4 10 c3 c3 e8 23 91 4b 00 eb 07 0f 00 2d da b1 94 08 fb f4 <48> 83 c4 10 c3 89 74 24 0c 48 89 3c 24 e8 56 8f 4b 00 8b 74 24 0c
RSP: 0018:ffffc90000007618 EFLAGS: 00000246
RAX: 0000000000000007 RBX: 0000000000000000 RCX: 1ffffffff1b73199
RDX: 0000000000000000 RSI: ffffffff81807171 RDI: ffffffff8134dffd
RBP: ffff88804c03a6c8 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff81807158 R11: 0000000000000001 R12: 0000000000000000
R13: ffffed10098074d9 R14: 0000000000000001 R15: ffff8880b9c3ae40
pv_wait arch/x86/include/asm/paravirt.h:603 [inline]
pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline]
__pv_queued_spin_lock_slowpath+0x8c7/0xb50 kernel/locking/qspinlock.c:511
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline]
queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
queued_spin_lock include/asm-generic/qspinlock.h:85 [inline]
do_raw_spin_lock+0x200/0x2a0 kernel/locking/spinlock_debug.c:115
spin_lock include/linux/spinlock.h:354 [inline]
task_lock include/linux/sched/task.h:170 [inline]
__get_task_comm+0x23/0x50 fs/exec.c:1219
__set_page_owner_handle mm/page_owner.c:174 [inline]
__set_page_owner+0x253/0x380 mm/page_owner.c:192
prep_new_page mm/page_alloc.c:2394 [inline]
get_page_from_freelist+0xba2/0x3e00 mm/page_alloc.c:4135
__alloc_pages+0x1b2/0x500 mm/page_alloc.c:5356
alloc_pages+0x1aa/0x310 mm/mempolicy.c:2273
alloc_slab_page mm/slub.c:1797 [inline]
allocate_slab+0x26c/0x3c0 mm/slub.c:1942
new_slab mm/slub.c:2002 [inline]
___slab_alloc+0x985/0xd90 mm/slub.c:3002
__slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3089
slab_alloc_node mm/slub.c:3180 [inline]
slab_alloc mm/slub.c:3222 [inline]
kmem_cache_alloc_trace+0x310/0x3f0 mm/slub.c:3253
kmalloc include/linux/slab.h:588 [inline]
tipc_topsrv_queue_evt+0x20a/0x640 net/tipc/topsrv.c:325
tipc_sub_send_event net/tipc/subscr.c:63 [inline]
tipc_sub_timeout+0x282/0x3d0 net/tipc/subscr.c:111
call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1444
expire_timers kernel/time/timer.c:1489 [inline]
__run_timers.part.0+0x679/0xa80 kernel/time/timer.c:1760
__run_timers kernel/time/timer.c:1738 [inline]
run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1773
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:637
irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:kasan_check_range+0x12b/0x180 mm/kasan/generic.c:190
Code: 3a 00 74 ef 49 8d 04 2c 48 85 d2 75 0b 48 89 da 48 29 c2 e9 55 ff ff ff 49 39 d2 75 17 49 0f be 02 41 83 e1 07 49 39 c1 7d 0a <5b> b8 01 00 00 00 5d 41 5c c3 44 89 c2 e8 c3 ef ff ff 5b 83 f0 01
RSP: 0018:ffffc9001516f488 EFLAGS: 00000246
RAX: ffffed10098074da RBX: ffffed10098074da RCX: ffffffff815ea4d0
RDX: ffffed10098074da RSI: 0000000000000004 RDI: ffff88804c03a6c8
RBP: ffffed10098074d9 R08: 0000000000000000 R09: ffff88804c03a6cb
R10: ffffed10098074d9 R11: 0000000000000001 R12: ffff888012d77568
R13: 0000000000000010 R14: ffff888012d77548 R15: 0000000000000007
instrument_atomic_read include/linux/instrumented.h:71 [inline]
atomic_read include/linux/atomic/atomic-instrumented.h:27 [inline]
queued_spin_is_locked include/asm-generic/qspinlock.h:28 [inline]
debug_spin_unlock kernel/locking/spinlock_debug.c:100 [inline]
do_raw_spin_unlock+0x50/0x230 kernel/locking/spinlock_debug.c:140
__raw_spin_unlock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_unlock+0x1a/0x40 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:394 [inline]
task_unlock include/linux/sched/task.h:175 [inline]
__get_task_comm+0x3d/0x50 fs/exec.c:1222
__set_page_owner_handle mm/page_owner.c:174 [inline]
__set_page_owner+0x253/0x380 mm/page_owner.c:192
prep_new_page mm/page_alloc.c:2394 [inline]
get_page_from_freelist+0xba2/0x3e00 mm/page_alloc.c:4135
__alloc_pages+0x1b2/0x500 mm/page_alloc.c:5356
__alloc_pages_node include/linux/gfp.h:583 [inline]
alloc_pages_node include/linux/gfp.h:606 [inline]
kmalloc_large_node+0x62/0x130 mm/slub.c:4433
__kmalloc_node_track_caller+0x2ec/0x360 mm/slub.c:4938
kmalloc_reserve net/core/skbuff.c:354 [inline]
__alloc_skb+0xde/0x340 net/core/skbuff.c:426
alloc_skb_fclone include/linux/skbuff.h:1387 [inline]
tipc_buf_acquire+0x25/0xe0 net/tipc/msg.c:72
tipc_msg_build+0xf5/0x10b0 net/tipc/msg.c:386
__tipc_sendstream+0x6d0/0x11a0 net/tipc/socket.c:1618
tipc_sendstream+0x4c/0x70 net/tipc/socket.c:1549
sock_sendmsg_nosec net/socket.c:705 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:725
sock_write_iter+0x283/0x3c0 net/socket.c:1061
call_write_iter include/linux/fs.h:2059 [inline]
new_sync_write+0x38a/0x560 fs/read_write.c:504
vfs_write+0x7c0/0xac0 fs/read_write.c:591
ksys_write+0x1e8/0x250 fs/read_write.c:644
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f12104890e9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f12115f9168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f121059c030 RCX: 00007f12104890e9
RDX: 000000002000011a RSI: 0000000020000080 RDI: 000000000000000e
RBP: 00007f12104e308d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc0650000f R14: 00007f12115f9300 R15: 0000000000022000
sched: RT throttling activated
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 00 00 add %al,(%rax)
4: 48 8b 84 24 a8 00 00 mov 0xa8(%rsp),%rax
b: 00
c: 65 48 2b 04 25 28 00 sub %gs:0x28,%rax
13: 00 00
15: 0f 85 e1 02 00 00 jne 0x2fc
1b: 48 81 c4 b0 00 00 00 add $0xb0,%rsp
22: 5b pop %rbx
23: 5d pop %rbp
24: 41 5c pop %r12
26: 41 5d pop %r13
28: 41 5e pop %r14
* 2a: 41 5f pop %r15 <-- trapping instruction
2c: c3 retq
2d: 65 8b 05 a7 4c a4 7e mov %gs:0x7ea44ca7(%rip),%eax # 0x7ea44cdb
34: 85 c0 test %eax,%eax
36: 75 b0 jne 0xffffffe8
38: 65 8b 05 94 42 a4 7e mov %gs:0x7ea44294(%rip),%eax # 0x7ea442d3
3f: a9 .byte 0xa9