rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (0 ticks this GP) idle=e0f/1/0x4000000000000000 softirq=38067/38067 fqs=0
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P6049/1:b..l
(detected by 1, t=10502 jiffies, g=58353, q=62)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 90 Comm: kworker/u4:3 Not tainted 5.18.0-rc1-syzkaller-00350-g1862a69c9174 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet
RIP: 0010:__lock_is_held kernel/locking/lockdep.c:5380 [inline]
RIP: 0010:lock_is_held_type+0x9a/0x140 kernel/locking/lockdep.c:5684
Code: 0a 00 00 65 ff 05 9e b4 a2 76 85 c0 7f 12 e9 8a 00 00 00 83 c3 01 41 3b 9c 24 58 0a 00 00 7d 7d 48 63 c3 48 89 ee 48 8d 04 80 <4d> 8d 7c c5 00 4c 89 ff e8 99 fe ff ff 85 c0 74 d8 41 83 fe ff 41
RSP: 0018:ffffc90000007bd0 EFLAGS: 00000093
RAX: 0000000000000005 RBX: 0000000000000001 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8bd81e20 RDI: ffff8880190cc460
RBP: ffffffff8bd81e20 R08: 0000000000000000 R09: ffffffff8db6f657
R10: fffffbfff1b6deca R11: 0000000000000000 R12: ffff8880190cba00
R13: ffff8880190cc460 R14: 00000000ffffffff R15: ffff8880190cc460
FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc181fbc74 CR3: 00000000790bc000 CR4: 0000000000350ef0
Call Trace:
lock_is_held include/linux/lockdep.h:283 [inline]
rcu_read_lock_sched_held+0x3a/0x70 kernel/rcu/update.c:125
trace_lock_acquire include/trace/events/lock.h:13 [inline]
lock_acquire+0x442/0x510 kernel/locking/lockdep.c:5612
__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_activate+0x12e/0x3e0 lib/debugobjects.c:661
debug_hrtimer_activate kernel/time/hrtimer.c:420 [inline]
debug_activate kernel/time/hrtimer.c:475 [inline]
enqueue_hrtimer+0x27/0x3e0 kernel/time/hrtimer.c:1084
__run_hrtimer kernel/time/hrtimer.c:1702 [inline]
__hrtimer_run_queues+0xb02/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:85 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [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+0xde/0x180 mm/kasan/generic.c:189
Code: 74 f2 48 89 c2 b8 01 00 00 00 48 85 d2 75 56 5b 5d 41 5c c3 48 85 d2 74 5e 48 01 ea eb 09 48 83 c0 01 48 39 d0 74 50 80 38 00 <74> f2 eb d4 41 bc 08 00 00 00 48 89 ea 45 29 dc 4d 8d 1c 2c eb 0c
RSP: 0018:ffffc90001c3fb70 EFLAGS: 00000246
RAX: ffffed100f9f1104 RBX: ffffed100f9f1105 RCX: ffffffff88f6068b
RDX: ffffed100f9f1105 RSI: 0000000000000004 RDI: ffff88807cf88820
RBP: ffffed100f9f1104 R08: 0000000000000001 R09: ffff88807cf88823
R10: ffffed100f9f1104 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000018 R14: ffff88807cf88800 R15: ffff8880742f8d18
instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:176 [inline]
__refcount_sub_and_test include/linux/refcount.h:272 [inline]
__refcount_dec_and_test include/linux/refcount.h:315 [inline]
refcount_dec_and_test include/linux/refcount.h:333 [inline]
kref_put include/linux/kref.h:64 [inline]
batadv_hardif_put net/batman-adv/hard-interface.h:95 [inline]
batadv_iv_ogm_schedule_buff+0x9bb/0x1430 net/batman-adv/bat_iv_ogm.c:859
batadv_iv_ogm_schedule net/batman-adv/bat_iv_ogm.c:869 [inline]
batadv_iv_ogm_schedule net/batman-adv/bat_iv_ogm.c:862 [inline]
batadv_iv_send_outstanding_bat_ogm_packet+0x740/0x910 net/batman-adv/bat_iv_ogm.c:1713
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
task:udevd state:R running task stack:27856 pid: 6049 ppid: 2962 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6382
preempt_schedule_notrace+0x5b/0xd0 kernel/sched/core.c:6640
preempt_schedule_notrace_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:36
rcu_is_watching+0x7f/0xb0 kernel/rcu/tree.c:1139
rcu_read_lock include/linux/rcupdate.h:695 [inline]
get_obj_cgroup_from_current+0xe1/0x4d0 mm/memcontrol.c:2888
memcg_slab_pre_alloc_hook mm/slab.h:488 [inline]
slab_pre_alloc_hook mm/slab.h:727 [inline]
slab_alloc_node mm/slub.c:3131 [inline]
slab_alloc mm/slub.c:3225 [inline]
__kmem_cache_alloc_lru mm/slub.c:3232 [inline]
kmem_cache_alloc+0x78/0x3b0 mm/slub.c:3242
inotify_new_watch fs/notify/inotify/inotify_user.c:589 [inline]
inotify_update_watch+0x2ad/0x810 fs/notify/inotify/inotify_user.c:636
__do_sys_inotify_add_watch fs/notify/inotify/inotify_user.c:774 [inline]
__se_sys_inotify_add_watch fs/notify/inotify/inotify_user.c:717 [inline]
__x64_sys_inotify_add_watch+0x2bb/0x350 fs/notify/inotify/inotify_user.c:717
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: 0033:0x7f3cf7d347f7
RSP: 002b:00007ffc181fd178 EFLAGS: 00000206 ORIG_RAX: 00000000000000fe
RAX: ffffffffffffffda RBX: 0000561e77e76220 RCX: 00007f3cf7d347f7
RDX: 0000000000000008 RSI: 0000561e77e673c0 RDI: 0000000000000007
RBP: 0000561e77e76220 R08: 0000000000000001 R09: 0000561e77e710c0
R10: 00000000000001b6 R11: 0000000000000206 R12: 0000561e77e88920
R13: 0000561e77e60550 R14: 0000000000000008 R15: 0000561e77e4b910
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g58353 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=0 timer-softirq=41459
rcu: rcu_preempt kthread starved for 10502 jiffies! g58353 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:28360 pid: 16 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6382
schedule+0xd2/0x1f0 kernel/sched/core.c:6454
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881
rcu_gp_fqs_loop+0x186/0x810 kernel/rcu/tree.c:1971
rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2144
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: 90 Comm: kworker/u4:3 Not tainted 5.18.0-rc1-syzkaller-00350-g1862a69c9174 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet
RIP: 0010:hlock_class kernel/locking/lockdep.c:197 [inline]
RIP: 0010:mark_lock.part.0+0xf6/0x1910 kernel/locking/lockdep.c:4585
Code: 66 81 e2 ff 1f 44 0f b7 f2 be 08 00 00 00 4c 89 f0 48 c1 f8 06 48 8d 3c c5 00 19 03 90 e8 f2 b2 67 00 4c 0f a3 35 9a f1 a5 0e <0f> 83 cd 00 00 00 4b 8d 04 76 48 c1 e0 06 48 05 20 1d 03 90 48 8d
RSP: 0018:ffffc90000007a00 EFLAGS: 00000047
RAX: 0000000000000001 RBX: 1ffff92000000f47 RCX: ffffffff815d275e
RDX: fffffbfff2006349 RSI: 0000000000000008 RDI: ffffffff90031a40
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff90031a47
R10: fffffbfff2006348 R11: 0000000000000001 R12: ffff8880190cc4d8
R13: 0000000000000000 R14: 0000000000000a07 R15: ffff8880190cc4f8
FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc181fbc74 CR3: 00000000790bc000 CR4: 0000000000350ef0
Call Trace:
mark_lock kernel/locking/lockdep.c:4571 [inline]
mark_usage kernel/locking/lockdep.c:4499 [inline]
__lock_acquire+0x14ad/0x56c0 kernel/locking/lockdep.c:4983
lock_acquire kernel/locking/lockdep.c:5641 [inline]
lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5606
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:349 [inline]
advance_sched+0x53/0x9a0 net/sched/sch_taprio.c:714
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:85 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [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+0xde/0x180 mm/kasan/generic.c:189
Code: 74 f2 48 89 c2 b8 01 00 00 00 48 85 d2 75 56 5b 5d 41 5c c3 48 85 d2 74 5e 48 01 ea eb 09 48 83 c0 01 48 39 d0 74 50 80 38 00 <74> f2 eb d4 41 bc 08 00 00 00 48 89 ea 45 29 dc 4d 8d 1c 2c eb 0c
RSP: 0018:ffffc90001c3fb70 EFLAGS: 00000246
RAX: ffffed100f9f1104 RBX: ffffed100f9f1105 RCX: ffffffff88f6068b
RDX: ffffed100f9f1105 RSI: 0000000000000004 RDI: ffff88807cf88820
RBP: ffffed100f9f1104 R08: 0000000000000001 R09: ffff88807cf88823
R10: ffffed100f9f1104 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000018 R14: ffff88807cf88800 R15: ffff8880742f8d18
instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:176 [inline]
__refcount_sub_and_test include/linux/refcount.h:272 [inline]
__refcount_dec_and_test include/linux/refcount.h:315 [inline]
refcount_dec_and_test include/linux/refcount.h:333 [inline]
kref_put include/linux/kref.h:64 [inline]
batadv_hardif_put net/batman-adv/hard-interface.h:95 [inline]
batadv_iv_ogm_schedule_buff+0x9bb/0x1430 net/batman-adv/bat_iv_ogm.c:859
batadv_iv_ogm_schedule net/batman-adv/bat_iv_ogm.c:869 [inline]
batadv_iv_ogm_schedule net/batman-adv/bat_iv_ogm.c:862 [inline]
batadv_iv_send_outstanding_bat_ogm_packet+0x740/0x910 net/batman-adv/bat_iv_ogm.c:1713
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
----------------
Code disassembly (best guess):
0: 0a 00 or (%rax),%al
2: 00 65 ff add %ah,-0x1(%rbp)
5: 05 9e b4 a2 76 add $0x76a2b49e,%eax
a: 85 c0 test %eax,%eax
c: 7f 12 jg 0x20
e: e9 8a 00 00 00 jmpq 0x9d
13: 83 c3 01 add $0x1,%ebx
16: 41 3b 9c 24 58 0a 00 cmp 0xa58(%r12),%ebx
1d: 00
1e: 7d 7d jge 0x9d
20: 48 63 c3 movslq %ebx,%rax
23: 48 89 ee mov %rbp,%rsi
26: 48 8d 04 80 lea (%rax,%rax,4),%rax
* 2a: 4d 8d 7c c5 00 lea 0x0(%r13,%rax,8),%r15 <-- trapping instruction
2f: 4c 89 ff mov %r15,%rdi
32: e8 99 fe ff ff callq 0xfffffed0
37: 85 c0 test %eax,%eax
39: 74 d8 je 0x13
3b: 41 83 fe ff cmp $0xffffffff,%r14d
3f: 41 rex.B