Total swap = 0kB
2097051 pages RAM
0 pages HighMem/MovableOnly
384517 pages reserved
0 pages cma reserved
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-....: (1133 ticks this GP) idle=5ad/1/0x4000000000000000 softirq=14510/14510 fqs=8
(t=10500 jiffies g=15153 q=98777)
rcu: rcu_preempt kthread timer wakeup didn't happen for 1173 jiffies! g15153 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=1 timer-softirq=5897
rcu: rcu_preempt kthread starved for 1174 jiffies! g15153 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:28688 pid: 14 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
context_switch kernel/sched/core.c:4972 [inline] kernel/sched/core.c:6253
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326 kernel/sched/core.c:6326
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881 kernel/time/timer.c:1881
rcu_gp_fqs_loop+0x186/0x810 kernel/rcu/tree.c:1955 kernel/rcu/tree.c:1955
rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2128 kernel/rcu/tree.c:2128
kthread+0x405/0x4f0 kernel/kthread.c:327 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 arch/x86/entry/entry_64.S:295
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: 6337 Comm: udevd Not tainted 5.16.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__lock_release kernel/locking/lockdep.c:5325 [inline]
RIP: 0010:__lock_release kernel/locking/lockdep.c:5325 [inline] kernel/locking/lockdep.c:5657
RIP: 0010:lock_release+0x265/0x720 kernel/locking/lockdep.c:5657 kernel/locking/lockdep.c:5657
Code: 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 47 04 00 00 <66> f7 43 22 f0 ff 74 36 48 8d 7b 20 48 b8 00 00 00 00 00 fc ff df
RSP: 0018:ffffc90001abf750 EFLAGS: 00000046
RAX: 0000000000000003 RBX: ffff88807c250ab0 RCX: ffffc90001abf7a0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88807c250ad2
RBP: 1ffff92000357eec R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 000000000000001f R12: ffff8880b9d35620
R13: 0000000000000003 R14: ffff88807c250a58 R15: ffff88807c250000
FS: 00007f376ef9c840(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe32dd0a18 CR3: 0000000061b86000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
local_lock_release include/linux/local_lock_internal.h:38 [inline]
local_lock_release include/linux/local_lock_internal.h:38 [inline] mm/page_alloc.c:3409
free_unref_page+0x30a/0x690 mm/page_alloc.c:3409 mm/page_alloc.c:3409
__unfreeze_partials+0x343/0x360 mm/slub.c:2527 mm/slub.c:2527
qlink_free mm/kasan/quarantine.c:146 [inline]
qlink_free mm/kasan/quarantine.c:146 [inline] mm/kasan/quarantine.c:165
qlist_free_all+0x5a/0xc0 mm/kasan/quarantine.c:165 mm/kasan/quarantine.c:165
kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:272 mm/kasan/quarantine.c:272
__kasan_slab_alloc+0xa2/0xc0 mm/kasan/common.c:444 mm/kasan/common.c:444
kasan_slab_alloc include/linux/kasan.h:259 [inline]
slab_post_alloc_hook mm/slab.h:519 [inline]
slab_alloc_node mm/slub.c:3234 [inline]
slab_alloc mm/slub.c:3242 [inline]
kasan_slab_alloc include/linux/kasan.h:259 [inline] mm/slub.c:3259
slab_post_alloc_hook mm/slab.h:519 [inline] mm/slub.c:3259
slab_alloc_node mm/slub.c:3234 [inline] mm/slub.c:3259
slab_alloc mm/slub.c:3242 [inline] mm/slub.c:3259
kmem_cache_alloc_trace+0x1e9/0x2c0 mm/slub.c:3259 mm/slub.c:3259
kmalloc include/linux/slab.h:590 [inline]
kzalloc include/linux/slab.h:724 [inline]
kmalloc include/linux/slab.h:590 [inline] fs/kernfs/file.c:628
kzalloc include/linux/slab.h:724 [inline] fs/kernfs/file.c:628
kernfs_fop_open+0x2b9/0xd30 fs/kernfs/file.c:628 fs/kernfs/file.c:628
do_dentry_open+0x4c8/0x1250 fs/open.c:822 fs/open.c:822
do_open fs/namei.c:3426 [inline]
do_open fs/namei.c:3426 [inline] fs/namei.c:3559
path_openat+0x1cad/0x2750 fs/namei.c:3559 fs/namei.c:3559
do_filp_open+0x1aa/0x400 fs/namei.c:3586 fs/namei.c:3586
do_sys_openat2+0x16d/0x4d0 fs/open.c:1212 fs/open.c:1212
do_sys_open fs/open.c:1228 [inline]
__do_sys_openat fs/open.c:1244 [inline]
__se_sys_openat fs/open.c:1239 [inline]
do_sys_open fs/open.c:1228 [inline] fs/open.c:1239
__do_sys_openat fs/open.c:1244 [inline] fs/open.c:1239
__se_sys_openat fs/open.c:1239 [inline] fs/open.c:1239
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1239 fs/open.c:1239
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_x64 arch/x86/entry/common.c:50 [inline] arch/x86/entry/common.c:80
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f376f0f3697
Code: 25 00 00 41 00 3d 00 00 41 00 74 37 64 8b 04 25 18 00 00 00 85 c0 75 5b 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 85 00 00 00 48 83 c4 68 5d 41 5c c3 0f 1f
RSP: 002b:00007ffe32dd02b0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000563fcce10a80 RCX: 00007f376f0f3697
RDX: 0000000000080000 RSI: 00007ffe32dd03c8 RDI: 00000000ffffff9c
RBP: 00007ffe32dd03c8 R08: 0000563fcbdb415e R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000080000
R13: 0000563fcce10b70 R14: 00007ffe32dd03c8 R15: 0000563fcbdb3a7c
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.440 msecs
NMI backtrace for cpu 0
CPU: 0 PID: 13 Comm: ksoftirqd/0 Not tainted 5.16.0-rc5-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 lib/dump_stack.c:88 [inline] lib/dump_stack.c:106
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline] kernel/rcu/tree_stall.h:343
rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:343 kernel/rcu/tree_stall.h:343
print_cpu_stall kernel/rcu/tree_stall.h:627 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:711 [inline]
rcu_pending kernel/rcu/tree.c:3878 [inline]
print_cpu_stall kernel/rcu/tree_stall.h:627 [inline] kernel/rcu/tree.c:2597
check_cpu_stall kernel/rcu/tree_stall.h:711 [inline] kernel/rcu/tree.c:2597
rcu_pending kernel/rcu/tree.c:3878 [inline] kernel/rcu/tree.c:2597
rcu_sched_clock_irq.cold+0x9d/0x746 kernel/rcu/tree.c:2597 kernel/rcu/tree.c:2597
update_process_times+0x16d/0x200 kernel/time/timer.c:1785 kernel/time/timer.c:1785
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226 kernel/time/tick-sched.c:226
tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1428 kernel/time/tick-sched.c:1428
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__run_hrtimer kernel/time/hrtimer.c:1685 [inline] kernel/time/hrtimer.c:1749
__hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline] arch/x86/kernel/apic/apic.c:1103
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 arch/x86/include/asm/idtentry.h:638
RIP: 0010:stack_trace_consume_entry+0x7a/0x160 kernel/stacktrace.c:89 kernel/stacktrace.c:89
Code: 0f 8e a5 00 00 00 31 c0 3b 6b 08 0f 83 81 00 00 00 48 8d 7b 0c 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 14 02 <48> 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 90 00 00 00 8b
RSP: 0018:ffffc90000d272d8 EFLAGS: 00000a07
RAX: dffffc0000000000 RBX: ffffc90000d273b0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff880ec656 RDI: ffffc90000d273bc
RBP: 000000000000000c R08: ffffffff8e8fe264 R09: 0000000000000001
R10: fffff520001a4e6a R11: 000000000008808a R12: ffffc90000d273b0
R13: 0000000000000000 R14: ffff888010e80000 R15: ffff88816774f400
arch_stack_walk+0x6d/0xe0 arch/x86/kernel/stacktrace.c:27 arch/x86/kernel/stacktrace.c:27
stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:122 kernel/stacktrace.c:122
kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38 mm/kasan/common.c:38
kasan_set_track+0x21/0x30 mm/kasan/common.c:46 mm/kasan/common.c:46
kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370 mm/kasan/generic.c:370
____kasan_slab_free mm/kasan/common.c:366 [inline]
____kasan_slab_free mm/kasan/common.c:328 [inline]
____kasan_slab_free mm/kasan/common.c:366 [inline] mm/kasan/common.c:374
____kasan_slab_free mm/kasan/common.c:328 [inline] mm/kasan/common.c:374
__kasan_slab_free+0xff/0x130 mm/kasan/common.c:374 mm/kasan/common.c:374
kasan_slab_free include/linux/kasan.h:235 [inline]
slab_free_hook mm/slub.c:1723 [inline]
kasan_slab_free include/linux/kasan.h:235 [inline] mm/slub.c:1749
slab_free_hook mm/slub.c:1723 [inline] mm/slub.c:1749
slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1749 mm/slub.c:1749
slab_free mm/slub.c:3513 [inline]
slab_free mm/slub.c:3513 [inline] mm/slub.c:4561
kfree+0xf6/0x560 mm/slub.c:4561 mm/slub.c:4561
skb_free_head net/core/skbuff.c:655 [inline]
skb_free_head net/core/skbuff.c:655 [inline] net/core/skbuff.c:677
skb_release_data+0x65a/0x790 net/core/skbuff.c:677 net/core/skbuff.c:677
skb_release_all net/core/skbuff.c:742 [inline]
__kfree_skb net/core/skbuff.c:756 [inline]
kfree_skb net/core/skbuff.c:774 [inline]
skb_release_all net/core/skbuff.c:742 [inline] net/core/skbuff.c:768
__kfree_skb net/core/skbuff.c:756 [inline] net/core/skbuff.c:768
kfree_skb net/core/skbuff.c:774 [inline] net/core/skbuff.c:768
kfree_skb+0x133/0x3f0 net/core/skbuff.c:768 net/core/skbuff.c:768
enqueue_to_backlog+0x210/0x10c0 net/core/dev.c:4676 net/core/dev.c:4676
netif_rx_internal+0x120/0x640 net/core/dev.c:4930 net/core/dev.c:4930
netif_rx+0x7f/0x510 net/core/dev.c:4957 net/core/dev.c:4957
__br_multicast_send_query+0x31df/0x3aa0 net/bridge/br_multicast.c:1658 net/bridge/br_multicast.c:1658
br_multicast_send_query+0x266/0x4b0 net/bridge/br_multicast.c:1725 net/bridge/br_multicast.c:1725
br_multicast_query_expired.constprop.0+0x168/0x1b0 net/bridge/br_multicast.c:3811 net/bridge/br_multicast.c:3811
call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421 kernel/time/timer.c:1421
expire_timers kernel/time/timer.c:1466 [inline]
expire_timers kernel/time/timer.c:1466 [inline] kernel/time/timer.c:1734
__run_timers.part.0+0x675/0xa20 kernel/time/timer.c:1734 kernel/time/timer.c:1734
__run_timers kernel/time/timer.c:1715 [inline]
__run_timers kernel/time/timer.c:1715 [inline] kernel/time/timer.c:1747
run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747 kernel/time/timer.c:1747
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558 kernel/softirq.c:558
run_ksoftirqd kernel/softirq.c:921 [inline]
run_ksoftirqd kernel/softirq.c:921 [inline] kernel/softirq.c:913
run_ksoftirqd+0x2d/0x60 kernel/softirq.c:913 kernel/softirq.c:913
smpboot_thread_fn+0x645/0x9c0 kernel/smpboot.c:164 kernel/smpboot.c:164
kthread+0x405/0x4f0 kernel/kthread.c:327 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 arch/x86/entry/entry_64.S:295
----------------
Code disassembly (best guess):
0: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
7: fc ff df
a: 48 89 fa mov %rdi,%rdx
d: 48 c1 ea 03 shr $0x3,%rdx
11: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx
15: 48 89 f8 mov %rdi,%rax
18: 83 e0 07 and $0x7,%eax
1b: 83 c0 01 add $0x1,%eax
1e: 38 d0 cmp %dl,%al
20: 7c 08 jl 0x2a
22: 84 d2 test %dl,%dl
24: 0f 85 47 04 00 00 jne 0x471
* 2a: 66 f7 43 22 f0 ff testw $0xfff0,0x22(%rbx) <-- trapping instruction
30: 74 36 je 0x68
32: 48 8d 7b 20 lea 0x20(%rbx),%rdi
36: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
3d: fc ff df
----------------
Code disassembly (best guess):
0: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
7: fc ff df
a: 48 89 fa mov %rdi,%rdx
d: 48 c1 ea 03 shr $0x3,%rdx
11: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx
15: 48 89 f8 mov %rdi,%rax
18: 83 e0 07 and $0x7,%eax
1b: 83 c0 01 add $0x1,%eax
1e: 38 d0 cmp %dl,%al
20: 7c 08 jl 0x2a
22: 84 d2 test %dl,%dl
24: 0f 85 47 04 00 00 jne 0x471
* 2a: 66 f7 43 22 f0 ff testw $0xfff0,0x22(%rbx) <-- trapping instruction
30: 74 36 je 0x68
32: 48 8d 7b 20 lea 0x20(%rbx),%rdi
36: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
3d: fc ff df