rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 1-....: (1 GPs behind) idle=1c7/1/0x4000000000000000 softirq=21001/21012 fqs=2506
(t=10500 jiffies g=26945 q=469 ncpus=2)
rcu: rcu_preempt kthread starved for 4510 jiffies! g26945 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:28680 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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3662 Comm: kworker/0:9 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: events nsim_dev_trap_report_work
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:ffffc900000074f8 EFLAGS: 00000246
RAX: 0000000000000007 RBX: 0000000000000000 RCX: 1ffffffff1b73199
RDX: 0000000000000000 RSI: ffffffff81807171 RDI: ffffffff8134dffd
RBP: ffff888015d94448 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff81807158 R11: 0000000000000001 R12: 0000000000000000
R13: ffffed1002bb2889 R14: 0000000000000001 R15: ffff8880b9c3ae40
FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007faa2060db02 CR3: 000000000ba8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
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]
kmem_cache_alloc_node+0x122/0x3f0 mm/slub.c:3264
__alloc_skb+0x215/0x340 net/core/skbuff.c:414
__netdev_alloc_skb+0x73/0x400 net/core/skbuff.c:494
netdev_alloc_skb include/linux/skbuff.h:3137 [inline]
dev_alloc_skb include/linux/skbuff.h:3150 [inline]
__ieee80211_beacon_get+0xa3c/0x1870 net/mac80211/tx.c:5167
ieee80211_beacon_get_tim+0x8f/0x930 net/mac80211/tx.c:5246
ieee80211_beacon_get include/net/mac80211.h:5063 [inline]
mac80211_hwsim_beacon_tx+0x111/0x920 drivers/net/wireless/mac80211_hwsim.c:1908
__iterate_interfaces+0x1e5/0x560 net/mac80211/util.c:793
ieee80211_iterate_active_interfaces_atomic+0x70/0x180 net/mac80211/util.c:829
mac80211_hwsim_beacon+0xcd/0x1c0 drivers/net/wireless/mac80211_hwsim.c:1961
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1749
hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1766
__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:memory_is_poisoned_n mm/kasan/generic.c:129 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x30/0x180 mm/kasan/generic.c:189
Code: 01 00 00 49 89 f9 41 54 44 0f b6 c2 49 01 f1 55 53 0f 82 18 01 00 00 48 b8 ff ff ff ff ff 7f ff ff 48 39 c7 0f 86 05 01 00 00 <49> 83 e9 01 48 89 fd 48 b8 00 00 00 00 00 fc ff df 4d 89 ca 48 c1
RSP: 0018:ffffc9000407f6a0 EFLAGS: 00000216
RAX: ffff7fffffffffff RBX: 0000000000000004 RCX: ffffffff83faa502
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888013924ef4
RBP: ffff888013924ef4 R08: 0000000000000001 R09: ffff888013924ef8
R10: ffffffff83faa4e6 R11: 0000000000000001 R12: 0000000000000004
R13: 0000000000000000 R14: ffff888013924ec8 R15: 0000000000000007
memset+0x20/0x40 mm/kasan/shadow.c:44
strscpy_pad+0x62/0x70 lib/string_helpers.c:792
__get_task_comm+0x35/0x50 fs/exec.c:1221
__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]
__kmalloc_node_track_caller+0x2cb/0x360 mm/slub.c:4952
kmalloc_reserve net/core/skbuff.c:354 [inline]
__alloc_skb+0xde/0x340 net/core/skbuff.c:426
alloc_skb include/linux/skbuff.h:1337 [inline]
nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:742 [inline]
nsim_dev_trap_report drivers/net/netdevsim/dev.c:799 [inline]
nsim_dev_trap_report_work+0x291/0xba0 drivers/net/netdevsim/dev.c:840
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 1
CPU: 1 PID: 3609 Comm: syz-executor.4 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:ffffc90000de06e8 EFLAGS: 00000246
RAX: 0000000000000007 RBX: 0000000000000000 RCX: 1ffffffff1b73199
RDX: 0000000000000000 RSI: ffffffff81807171 RDI: ffffffff8134dffd
RBP: ffff88807f33c448 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff81807158 R11: 0000000000000001 R12: 0000000000000000
R13: ffffed100fe67889 R14: 0000000000000001 R15: ffff8880b9d3ae40
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
skb_page_frag_refill net/core/sock.c:2751 [inline]
skb_page_frag_refill+0x191/0x360 net/core/sock.c:2735
add_recvbuf_mergeable drivers/net/virtio_net.c:1357 [inline]
try_fill_recv+0x747/0x1960 drivers/net/virtio_net.c:1398
virtnet_receive drivers/net/virtio_net.c:1512 [inline]
virtnet_poll+0x95a/0x11a0 drivers/net/virtio_net.c:1609
__napi_poll+0xb3/0x6e0 net/core/dev.c:6443
napi_poll net/core/dev.c:6510 [inline]
net_rx_action+0x8ec/0xc60 net/core/dev.c:6597
__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
common_interrupt+0xa9/0xc0 arch/x86/kernel/irq.c:240
asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:640
RIP: 0010:__kasan_check_read+0x0/0x10 mm/kasan/shadow.c:31
Code: 39 c7 73 0b 0f 0b 48 83 c4 60 5b 5d 41 5c c3 48 05 00 80 00 00 48 89 fb 48 39 c7 0f 82 46 e6 64 07 eb e1 cc cc cc cc cc cc cc <48> 8b 0c 24 89 f6 31 d2 e9 b3 fa ff ff 0f 1f 00 48 8b 0c 24 89 f6
RSP: 0018:ffffc90002fdf4d8 EFLAGS: 00000246
RAX: 0000000000000007 RBX: ffff88807f33bb00 RCX: ffffffff815e2411
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88807f33c448
RBP: ffff88807f33c448 R08: 0000000000000000 R09: ffffffff8db95917
R10: 0000000000000000 R11: 0000000000000001 R12: ffff888012e43a28
R13: 0000000000000010 R14: ffff888012e43a08 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+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]
__kmalloc+0x318/0x350 mm/slub.c:4415
kmalloc include/linux/slab.h:593 [inline]
tomoyo_realpath_from_path+0xc3/0x620 security/tomoyo/realpath.c:254
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_path_perm+0x21b/0x400 security/tomoyo/file.c:822
security_inode_getattr+0xcf/0x140 security/security.c:1349
vfs_getattr fs/stat.c:157 [inline]
vfs_statx+0x16a/0x390 fs/stat.c:232
vfs_fstatat+0x8c/0xb0 fs/stat.c:255
vfs_lstat include/linux/fs.h:3145 [inline]
__do_sys_newlstat+0x8b/0x110 fs/stat.c:411
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: 0033:0x7f563a088186
Code: ff ff ff 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 41 89 f8 48 89 f7 48 89 d6 41 83 f8 01 77 29 b8 06 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 02 c3 90 48 c7 c2 b8 ff ff ff f7 d8 64 89 02
RSP: 002b:00007ffffee396f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000006
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f563a088186
RDX: 00007ffffee39730 RSI: 00007ffffee39730 RDI: 00007ffffee397c0
RBP: 00007ffffee397c0 R08: 0000000000000001 R09: 00007ffffee39590
R10: 0000555555a63893 R11: 0000000000000246 R12: 00007f563a0e21f8
R13: 00007ffffee3a880 R14: 0000555555a63810 R15: 00007ffffee3a8c0
----------------
Code disassembly (best guess):
0: fa cli
1: 83 e2 07 and $0x7,%edx
4: 38 d0 cmp %dl,%al
6: 7f 04 jg 0xc
8: 84 c0 test %al,%al
a: 75 63 jne 0x6f
c: 0f b6 07 movzbl (%rdi),%eax
f: 40 38 c6 cmp %al,%sil
12: 74 35 je 0x49
14: 48 83 c4 10 add $0x10,%rsp
18: c3 retq
19: c3 retq
1a: e8 23 91 4b 00 callq 0x4b9142
1f: eb 07 jmp 0x28
21: 0f 00 2d da b1 94 08 verw 0x894b1da(%rip) # 0x894b202
28: fb sti
29: f4 hlt
* 2a: 48 83 c4 10 add $0x10,%rsp <-- trapping instruction
2e: c3 retq
2f: 89 74 24 0c mov %esi,0xc(%rsp)
33: 48 89 3c 24 mov %rdi,(%rsp)
37: e8 56 8f 4b 00 callq 0x4b8f92
3c: 8b 74 24 0c mov 0xc(%rsp),%esi