rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (1 ticks this GP) idle=eb34/1/0x4000000000000000 softirq=116923/116923 fqs=0
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P19479/1:b..l
(detected by 1, t=10502 jiffies, g=183377, q=83 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 6940 Comm: syz-executor.2 Not tainted 6.1.77-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
RIP: 0010:check_preemption_disabled+0x2/0x110 lib/smp_processor_id.c:13
Code: 1c 8d 48 89 de e8 de 79 d8 f9 e9 6d ff ff ff cc cc cc cc cc cc cc cc cc 48 c7 c7 60 0d 3d 8b 48 c7 c6 a0 0d 3d 8b eb 00 41 57 <41> 56 41 54 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24
RSP: 0018:ffffc90000007c68 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffff888020655940
RDX: ffff888020655940 RSI: ffffffff8aebfe40 RDI: ffffffff8b3d0dc0
RBP: 0000000000000001 R08: ffffffff88b4d847 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: 0000000000000046
R13: ffff888020655940 R14: 00000000ffffffff R15: ffff888072cd3300
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00bdf4060 CR3: 00000000a01f4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lockdep_recursion_finish kernel/locking/lockdep.c:467 [inline]
lock_is_held_type+0xfd/0x180 kernel/locking/lockdep.c:5706
lock_is_held include/linux/lockdep.h:283 [inline]
advance_sched+0x69/0x970 net/sched/sch_taprio.c:701
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x5e5/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:lock_acquire+0x6/0x5a0 kernel/locking/lockdep.c:5630
Code: c7 68 78 73 8e e8 2a 9d 77 00 e9 a2 fd ff ff 0f 1f 44 00 00 65 8b 05 11 24 98 7e a9 00 ff ff 00 0f 95 c0 c3 55 48 89 e5 41 57 <41> 56 41 55 41 54 53 48 83 e4 e0 48 81 ec 20 01 00 00 4c 89 4c 24
RSP: 0018:ffffc9000aee7888 EFLAGS: 00000246
RAX: 0000000000000002 RBX: ffff88802170a010 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8d12a740
RBP: ffffc9000aee7890 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807a136390
R13: dffffc0000000000 R14: ffffffff81e995f4 R15: ffff88802170a000
rcu_lock_acquire include/linux/rcupdate.h:318 [inline]
rcu_read_lock include/linux/rcupdate.h:759 [inline]
percpu_ref_tryget_many include/linux/percpu-refcount.h:241 [inline]
percpu_ref_tryget+0x31/0x170 include/linux/percpu-refcount.h:266
css_tryget include/linux/cgroup.h:357 [inline]
get_mem_cgroup_from_objcg+0xc8/0x150 include/linux/memcontrol.h:523
obj_cgroup_uncharge_pages mm/memcontrol.c:3072 [inline]
__memcg_kmem_uncharge_page+0xcc/0x270 mm/memcontrol.c:3148
memcg_kmem_uncharge_page include/linux/memcontrol.h:1769 [inline]
exit_task_stack_account+0x19c/0x310 kernel/fork.c:516
do_exit+0x1c0b/0x26a0 kernel/exit.c:911
do_group_exit+0x202/0x2b0 kernel/exit.c:1019
get_signal+0x16f7/0x17d0 kernel/signal.c:2862
arch_do_signal_or_restart+0xb0/0x1a10 arch/x86/kernel/signal.c:871
exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:297
do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:87
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fdcc667dda9
Code: Unable to access opcode bytes at 0x7fdcc667dd7f.
RSP: 002b:00007fdcc74b0178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007fdcc67abf88 RCX: 00007fdcc667dda9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fdcc67abf8c
RBP: 00007fdcc67abf80 R08: 0000000000000010 R09: 00007fdcc74b06c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fdcc67abf8c
R13: 000000000000000b R14: 00007fff2e7945f0 R15: 00007fff2e7946d8
task:kworker/u4:19 state:R running task stack:22208 pid:19479 ppid:2 flags:0x00004000
Workqueue: bat_events batadv_nc_worker
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870
irqentry_exit+0x53/0x80 kernel/entry/common.c:433
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:lock_acquire+0x26f/0x5a0 kernel/locking/lockdep.c:5666
Code: 2b 00 74 08 4c 89 f7 e8 cf 9a 77 00 f6 44 24 61 02 0f 85 84 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:ffffc9000b89fa80 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92001713f5c RCX: 1ffff92001713efc
RDX: dffffc0000000000 RSI: ffffffff8aebfe40 RDI: ffffffff8b3d0dc0
RBP: ffffc9000b89fbe0 R08: dffffc0000000000 R09: fffffbfff2092245
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92001713f58
R13: dffffc0000000000 R14: ffffc9000b89fae0 R15: 0000000000000246
rcu_lock_acquire include/linux/rcupdate.h:318 [inline]
rcu_read_lock include/linux/rcupdate.h:759 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0xe8/0x610 net/batman-adv/network-coding.c:719
process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g183377 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=0 timer-softirq=143003
rcu: rcu_preempt kthread starved for 10502 jiffies! g183377 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:25208 pid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1935
rcu_gp_fqs_loop+0x2d2/0x1120 kernel/rcu/tree.c:1706
rcu_gp_kthread+0xa3/0x3a0 kernel/rcu/tree.c:1905
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
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: 6940 Comm: syz-executor.2 Not tainted 6.1.77-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x60 kernel/kcov.c:206
Code: 00 0f 0b 0f 1f 00 53 48 89 fb e8 17 00 00 00 48 8b 3d c8 ca e8 0c 48 89 de 5b e9 57 96 56 00 cc cc cc cc cc cc cc 48 8b 04 24 <65> 48 8b 0d 14 f4 77 7e 65 8b 15 15 f4 77 7e f7 c2 00 01 ff 00 74
RSP: 0018:ffffc90000007d58 EFLAGS: 00000002
RAX: ffffffff8179abbd RBX: 0000000000000000 RCX: ffff888020655940
RDX: ffff888020655940 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffc90000007eb0 R08: ffffffff8179abaf R09: fffffbfff1ce6876
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880b982a4c0
R13: 0000000000000001 R14: ffff8880b982a4c0 R15: 0000000000000002
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00bdf4060 CR3: 00000000a01f4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
cpu_max_bits_warn include/linux/cpumask.h:110 [inline]
cpumask_check include/linux/cpumask.h:117 [inline]
cpumask_test_cpu include/linux/cpumask.h:444 [inline]
cpu_online include/linux/cpumask.h:1030 [inline]
trace_hrtimer_expire_exit include/trace/events/timer.h:286 [inline]
__run_hrtimer kernel/time/hrtimer.c:1688 [inline]
__hrtimer_run_queues+0x64d/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:lock_acquire+0x6/0x5a0 kernel/locking/lockdep.c:5630
Code: c7 68 78 73 8e e8 2a 9d 77 00 e9 a2 fd ff ff 0f 1f 44 00 00 65 8b 05 11 24 98 7e a9 00 ff ff 00 0f 95 c0 c3 55 48 89 e5 41 57 <41> 56 41 55 41 54 53 48 83 e4 e0 48 81 ec 20 01 00 00 4c 89 4c 24
RSP: 0018:ffffc9000aee7888 EFLAGS: 00000246
RAX: 0000000000000002 RBX: ffff88802170a010 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8d12a740
RBP: ffffc9000aee7890 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807a136390
R13: dffffc0000000000 R14: ffffffff81e995f4 R15: ffff88802170a000
rcu_lock_acquire include/linux/rcupdate.h:318 [inline]
rcu_read_lock include/linux/rcupdate.h:759 [inline]
percpu_ref_tryget_many include/linux/percpu-refcount.h:241 [inline]
percpu_ref_tryget+0x31/0x170 include/linux/percpu-refcount.h:266
css_tryget include/linux/cgroup.h:357 [inline]
get_mem_cgroup_from_objcg+0xc8/0x150 include/linux/memcontrol.h:523
obj_cgroup_uncharge_pages mm/memcontrol.c:3072 [inline]
__memcg_kmem_uncharge_page+0xcc/0x270 mm/memcontrol.c:3148
memcg_kmem_uncharge_page include/linux/memcontrol.h:1769 [inline]
exit_task_stack_account+0x19c/0x310 kernel/fork.c:516
do_exit+0x1c0b/0x26a0 kernel/exit.c:911
do_group_exit+0x202/0x2b0 kernel/exit.c:1019
get_signal+0x16f7/0x17d0 kernel/signal.c:2862
arch_do_signal_or_restart+0xb0/0x1a10 arch/x86/kernel/signal.c:871
exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:297
do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:87
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fdcc667dda9
Code: Unable to access opcode bytes at 0x7fdcc667dd7f.
RSP: 002b:00007fdcc74b0178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007fdcc67abf88 RCX: 00007fdcc667dda9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fdcc67abf8c
RBP: 00007fdcc67abf80 R08: 0000000000000010 R09: 00007fdcc74b06c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fdcc67abf8c
R13: 000000000000000b R14: 00007fff2e7945f0 R15: 00007fff2e7946d8