rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...!: (0 ticks this GP) idle=2824/1/0x4000000000000000 softirq=42545/42545 fqs=0
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P14465/1:b..l P1064/1:b..l
(detected by 0, t=10503 jiffies, g=63925, q=53 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 14466 Comm: syz-executor.2 Not tainted 6.2.0-rc8-syzkaller-00098-gec35307e18ba #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
RIP: 0010:rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:121 [inline]
RIP: 0010:rcu_is_watching+0x3a/0xb0 kernel/rcu/tree.c:713
Code: e8 eb fd 31 09 89 c3 83 f8 08 73 76 49 bf 00 00 00 00 00 fc ff df 4c 8d 34 dd 20 58 a1 8c 4c 89 f0 48 c1 e8 03 42 80 3c 38 00 <74> 08 4c 89 f7 e8 2c 90 6c 00 48 c7 c3 38 5e 03 00 49 03 1e 48 89
RSP: 0018:ffffc900001e0ca0 EFLAGS: 00000046
RAX: 1ffffffff1942b05 RBX: 0000000000000001 RCX: ffff88803b863a80
RDX: ffff88803b863a80 RSI: ffffffff8b3823a0 RDI: ffffffff8b382360
RBP: ffffc900001e0d50 R08: ffffffff817aff68 R09: fffffbfff1ca4efe
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff88d1a960
R13: ffffffff88d1a960 R14: ffffffff8ca15828 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff57e8a0000 CR3: 0000000035f81000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_read_lock_held_common kernel/rcu/update.c:108 [inline]
rcu_read_lock_sched_held+0x6f/0x130 kernel/rcu/update.c:123
trace_hrtimer_expire_entry include/trace/events/timer.h:235 [inline]
__run_hrtimer kernel/time/hrtimer.c:1682 [inline]
__hrtimer_run_queues+0x578/0x1000 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x396/0x980 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline]
__sysvec_apic_timer_interrupt+0x193/0x680 arch/x86/kernel/apic/apic.c:1113
sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1107
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:finish_lock_switch+0x95/0x110 kernel/sched/core.c:5053
Code: 45 31 c9 68 67 43 61 81 e8 78 c3 09 00 48 83 c4 08 4c 89 ff e8 0c bb fe ff 66 90 4c 89 ff e8 82 ed 4e 09 e8 9d 42 31 00 fb 5b <41> 5c 41 5d 41 5e 41 5f c3 44 89 f1 80 e1 07 80 c1 03 38 c1 7c 83
RSP: 0018:ffffc90016a76f58 EFLAGS: 00000282
RAX: 3ab1da247e0b8e00 RBX: ffff88807922d7f4 RCX: ffffffff816b748a
RDX: dffffc0000000000 RSI: ffffffff8aea6f40 RDI: ffffffff8b3823c0
RBP: ffffc90016a76fd0 R08: dffffc0000000000 R09: fffffbfff2038637
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff110173277e3 R14: ffff8880b993bf18 R15: ffff8880b993b1c0
finish_task_switch+0x134/0x650 kernel/sched/core.c:5170
context_switch kernel/sched/core.c:5296 [inline]
__schedule+0x1411/0x43f0 kernel/sched/core.c:6606
preempt_schedule_common+0x83/0xd0 kernel/sched/core.c:6775
preempt_schedule+0xdd/0xf0 kernel/sched/core.c:6799
preempt_schedule_thunk+0x1a/0x20 arch/x86/entry/thunk_64.S:34
unwind_next_frame+0x1afa/0x22b0 arch/x86/kernel/unwind_orc.c:648
arch_stack_walk+0x111/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x117/0x1c0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:45 [inline]
kasan_set_track+0x4f/0x80 mm/kasan/common.c:52
kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:523
____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236
kasan_slab_free include/linux/kasan.h:177 [inline]
slab_free_hook mm/slub.c:1781 [inline]
slab_free_freelist_hook mm/slub.c:1807 [inline]
slab_free mm/slub.c:3787 [inline]
kmem_cache_free+0x2b5/0x580 mm/slub.c:3809
remove_vma mm/mmap.c:144 [inline]
exit_mmap+0x43b/0x970 mm/mmap.c:3110
__mmput+0x115/0x3c0 kernel/fork.c:1207
exit_mm+0x227/0x310 kernel/exit.c:563
do_exit+0x588/0x2210 kernel/exit.c:854
do_group_exit+0x206/0x2c0 kernel/exit.c:1012
get_signal+0x1701/0x17e0 kernel/signal.c:2859
arch_do_signal_or_restart+0x91/0x670 arch/x86/kernel/signal.c:306
exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:203
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x64/0x2e0 kernel/entry/common.c:296
do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f6f5768c0f9
Code: Unable to access opcode bytes at 0x7f6f5768c0cf.
RSP: 002b:00007f6f58473218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f6f577ac058 RCX: 00007f6f5768c0f9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f6f577ac058
RBP: 00007f6f577ac050 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6f577ac05c
R13: 00007ffd6343371f R14: 00007f6f58473300 R15: 0000000000022000
task:kworker/u4:5 state:R running task stack:20856 pid:1064 ppid:2 flags:0x00004000
Workqueue: bat_events batadv_nc_worker
Call Trace:
context_switch kernel/sched/core.c:5293 [inline]
__schedule+0x1409/0x43f0 kernel/sched/core.c:6606
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6918
irqentry_exit+0x57/0x80 kernel/entry/common.c:432
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:lock_acquire+0x2ac/0x630 kernel/locking/lockdep.c:5672
Code: 2b 00 74 08 4c 89 f7 e8 12 02 76 00 f6 44 24 61 02 0f 85 d1 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc90005787a80 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92000af0f5c RCX: 1ffff92000af0efc
RDX: dffffc0000000000 RSI: ffffffff8aea80c0 RDI: ffffffff8b3823c0
RBP: ffffc90005787bd8 R08: dffffc0000000000 R09: fffffbfff2038631
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000af0f58
R13: dffffc0000000000 R14: ffffc90005787ae0 R15: 0000000000000246
rcu_lock_acquire+0x2e/0x40 include/linux/rcupdate.h:325
rcu_read_lock include/linux/rcupdate.h:764 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0xca/0x580 net/batman-adv/network-coding.c:719
process_one_work+0x8fa/0x1370 kernel/workqueue.c:2289
worker_thread+0xa63/0x1210 kernel/workqueue.c:2436
kthread+0x270/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
task:syz-executor.3 state:R running task stack:27784 pid:14465 ppid:5111 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5293 [inline]
__schedule+0x1409/0x43f0 kernel/sched/core.c:6606
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6918
irqentry_exit+0x57/0x80 kernel/entry/common.c:432
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:lock_is_held_type+0x13b/0x190
Code: 75 40 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 75 46 41 f7 c4 00 02 00 00 74 01 fb 65 48 8b 04 25 28 00 00 00 <48> 3b 44 24 08 75 3c 89 e8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f
RSP: 0000:ffffc9001681fab8 EFLAGS: 00000206
RAX: cd7c999d89114e00 RBX: 0000000000000002 RCX: 0000000080000000
RDX: ffffc900044c3000 RSI: ffffffff8aea80c0 RDI: ffffffff8b3823c0
RBP: 0000000000000000 R08: ffffffff81cc7212 R09: fffffbfff2038631
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000246
R13: ffff88803b401d40 R14: 00000000ffffffff R15: ffffffff8cf4d8b8
lock_is_held include/linux/lockdep.h:283 [inline]
task_css include/linux/cgroup.h:437 [inline]
mem_cgroup_from_task+0x6e/0x110 mm/memcontrol.c:987
count_memcg_event_mm+0x13c/0x390 include/linux/memcontrol.h:1095
handle_mm_fault+0x16d/0x51e0 mm/memory.c:5199
do_user_addr_fault arch/x86/mm/fault.c:1428 [inline]
handle_page_fault arch/x86/mm/fault.c:1519 [inline]
exc_page_fault+0x673/0x880 arch/x86/mm/fault.c:1575
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x7ff587e291c7
RSP: 002b:00007ff588c87600 EFLAGS: 00010206
RAX: 00000000002a1001 RBX: 00007ff588c87660 RCX: 0000000000000001
RDX: 00000000000000e0 RSI: 00007ff57e5ff000 RDI: 00007ff588c87700
RBP: 0000000000000102 R08: 0000000000000000 R09: 00000000002a1000
R10: 0000000000000000 R11: 00007ff588c87670 R12: 00007ff588c87670
R13: 00007ff588c87700 R14: 0000000000000001 R15: 0000000000000000
rcu: rcu_preempt kthread timer wakeup didn't happen for 10502 jiffies! g63925 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=1 timer-softirq=45010
rcu: rcu_preempt kthread starved for 10503 jiffies! g63925 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:26648 pid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5293 [inline]
__schedule+0x1409/0x43f0 kernel/sched/core.c:6606
schedule+0xc3/0x190 kernel/sched/core.c:6682
schedule_timeout+0x1bd/0x310 kernel/time/timer.c:2167
rcu_gp_fqs_loop+0x2c6/0x1010 kernel/rcu/tree.c:1656
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:1855
kthread+0x270/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
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: 14466 Comm: syz-executor.2 Not tainted 6.2.0-rc8-syzkaller-00098-gec35307e18ba #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
RIP: 0010:__lock_acquire+0xc95/0x1f80 kernel/locking/lockdep.c:5025
Code: f6 85 c0 0f 84 8f 08 00 00 48 c7 c0 a0 b0 9b 91 48 c1 e8 03 48 bf 00 00 00 00 00 fc ff df 0f b6 04 38 84 c0 0f 85 ea 0b 00 00 <83> 3d 94 95 30 10 00 75 39 48 63 9c 24 80 00 00 00 48 89 d8 48 c1
RSP: 0018:ffffc900001e0a80 EFLAGS: 00000097
RAX: 0000000000000004 RBX: ffff88803b86449c RCX: ffffffff919bb003
RDX: 0000000000000000 RSI: 0000000000000000 RDI: dffffc0000000000
RBP: ffff88803b8644e0 R08: dffffc0000000000 R09: fffffbfff2038632
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88803b8644b0
R13: ffff88803b863a80 R14: ffff88803b864500 R15: 1ffff1100770c8a0
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff57e8a0000 CR3: 0000000035f81000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x235/0x630 kernel/locking/lockdep.c:5668
__raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline]
_raw_spin_lock_irq+0xd3/0x120 kernel/locking/spinlock.c:170
__run_hrtimer kernel/time/hrtimer.c:1689 [inline]
__hrtimer_run_queues+0x7ad/0x1000 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x396/0x980 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline]
__sysvec_apic_timer_interrupt+0x193/0x680 arch/x86/kernel/apic/apic.c:1113
sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1107
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:finish_lock_switch+0x95/0x110 kernel/sched/core.c:5053
Code: 45 31 c9 68 67 43 61 81 e8 78 c3 09 00 48 83 c4 08 4c 89 ff e8 0c bb fe ff 66 90 4c 89 ff e8 82 ed 4e 09 e8 9d 42 31 00 fb 5b <41> 5c 41 5d 41 5e 41 5f c3 44 89 f1 80 e1 07 80 c1 03 38 c1 7c 83
RSP: 0018:ffffc90016a76f58 EFLAGS: 00000282
RAX: 3ab1da247e0b8e00 RBX: ffff88807922d7f4 RCX: ffffffff816b748a
RDX: dffffc0000000000 RSI: ffffffff8aea6f40 RDI: ffffffff8b3823c0
RBP: ffffc90016a76fd0 R08: dffffc0000000000 R09: fffffbfff2038637
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff110173277e3 R14: ffff8880b993bf18 R15: ffff8880b993b1c0
finish_task_switch+0x134/0x650 kernel/sched/core.c:5170
context_switch kernel/sched/core.c:5296 [inline]
__schedule+0x1411/0x43f0 kernel/sched/core.c:6606
preempt_schedule_common+0x83/0xd0 kernel/sched/core.c:6775
preempt_schedule+0xdd/0xf0 kernel/sched/core.c:6799
preempt_schedule_thunk+0x1a/0x20 arch/x86/entry/thunk_64.S:34
unwind_next_frame+0x1afa/0x22b0 arch/x86/kernel/unwind_orc.c:648
arch_stack_walk+0x111/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x117/0x1c0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:45 [inline]
kasan_set_track+0x4f/0x80 mm/kasan/common.c:52
kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:523
____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236
kasan_slab_free include/linux/kasan.h:177 [inline]
slab_free_hook mm/slub.c:1781 [inline]
slab_free_freelist_hook mm/slub.c:1807 [inline]
slab_free mm/slub.c:3787 [inline]
kmem_cache_free+0x2b5/0x580 mm/slub.c:3809
remove_vma mm/mmap.c:144 [inline]
exit_mmap+0x43b/0x970 mm/mmap.c:3110
__mmput+0x115/0x3c0 kernel/fork.c:1207
exit_mm+0x227/0x310 kernel/exit.c:563
do_exit+0x588/0x2210 kernel/exit.c:854
do_group_exit+0x206/0x2c0 kernel/exit.c:1012
get_signal+0x1701/0x17e0 kernel/signal.c:2859
arch_do_signal_or_restart+0x91/0x670 arch/x86/kernel/signal.c:306
exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:203
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x64/0x2e0 kernel/entry/common.c:296
do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f6f5768c0f9
Code: Unable to access opcode bytes at 0x7f6f5768c0cf.
RSP: 002b:00007f6f58473218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f6f577ac058 RCX: 00007f6f5768c0f9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f6f577ac058
RBP: 00007f6f577ac050 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6f577ac05c
R13: 00007ffd6343371f R14: 00007f6f58473300 R15: 0000000000022000