rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (0 ticks this GP) idle=c7cc/1/0x4000000000000000 softirq=142700/142700 fqs=0
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P13700/1:b..l
rcu: (detected by 1, t=10506 jiffies, g=150965, q=239 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30336 Comm: syz.3.7810 Not tainted 6.14.0-rc1-syzkaller-00028-g5c8c229261f1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:kasan_check_range+0x1b8/0x290 mm/kasan/generic.c:189
Code: 4d 01 fb 48 8d 5d 07 48 85 ed 48 0f 49 dd 48 83 e3 f8 48 29 dd 74 12 41 80 3b 00 0f 85 a6 00 00 00 49 ff c3 48 ff cd 75 ee 5b <41> 5c 41 5e 41 5f 5d c3 cc cc cc cc 40 84 ed 75 5f f7 c5 00 ff 00
RSP: 0018:ffffc900000079e8 EFLAGS: 00000056
RAX: 0000000000000001 RBX: 0000000000000892 RCX: ffffffff819ac457
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff942c3950
RBP: 0000000000000000 R08: ffffffff942c3957 R09: 1ffffffff285872a
R10: dffffc0000000000 R11: fffffbfff285872b R12: ffff888040ac28d4
R13: 0000000000000005 R14: dffffc0000000001 R15: fffffbfff285872b
FS: 00007f17a19d46c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000004000 CR3: 00000000a2cfc000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:68 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
hlock_class kernel/locking/lockdep.c:230 [inline]
check_wait_context kernel/locking/lockdep.c:4853 [inline]
__lock_acquire+0x5b7/0x2100 kernel/locking/lockdep.c:5178
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:351 [inline]
advance_sched+0xab/0xca0 net/sched/sch_taprio.c:924
__run_hrtimer kernel/time/hrtimer.c:1801 [inline]
__hrtimer_run_queues+0x59b/0xd30 kernel/time/hrtimer.c:1865
hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1927
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
__sysvec_apic_timer_interrupt+0x110/0x420 arch/x86/kernel/apic/apic.c:1055
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:obj_cgroup_charge_pages+0x173/0x230 mm/memcontrol.c:2641
Code: 3c 23 00 74 08 4c 89 ff e8 5a f0 f7 ff f6 44 24 41 02 8b 5c 24 10 0f 85 87 00 00 00 f7 44 24 18 00 02 00 00 74 01 fb 4c 89 ef <89> de e8 b6 30 ff ff 8b 44 24 14 49 8d 5d 54 48 89 d9 48 c1 e9 03
RSP: 0018:ffffc9000cd27620 EFLAGS: 00000206
RAX: f43bd431ba0bdf00 RBX: 0000000000000001 RCX: ffffffff819b310a
RDX: dffffc0000000000 RSI: ffffffff8c0aa680 RDI: ffff88805bf66000
RBP: ffffc9000cd276f0 R08: ffffffff942c395f R09: 1ffffffff285872b
R10: dffffc0000000000 R11: fffffbfff285872c R12: dffffc0000000000
R13: ffff88805bf66000 R14: 1ffff920019a4ec8 R15: ffffc9000cd27660
obj_cgroup_charge+0x380/0x5d0 mm/memcontrol.c:2927
__memcg_slab_post_alloc_hook+0x1b1/0x7e0 mm/memcontrol.c:2988
memcg_slab_post_alloc_hook mm/slub.c:2152 [inline]
slab_post_alloc_hook mm/slub.c:4125 [inline]
kmem_cache_alloc_bulk_noprof+0x57e/0x7c0 mm/slub.c:5125
__io_alloc_req_refill+0xa3/0x310 io_uring/io_uring.c:965
io_alloc_req io_uring/io_uring.h:435 [inline]
io_submit_sqes+0xc70/0x1d60 io_uring/io_uring.c:2308
__do_sys_io_uring_enter io_uring/io_uring.c:3370 [inline]
__se_sys_io_uring_enter+0x2c8/0x3390 io_uring/io_uring.c:3305
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f17a0b8cde9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f17a19d4038 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa
RAX: ffffffffffffffda RBX: 00007f17a0da5fa0 RCX: 00007f17a0b8cde9
RDX: 0000000000000000 RSI: 00000000000047f9 RDI: 0000000000000003
RBP: 00007f17a0c0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f17a0da5fa0 R15: 00007fff8e289f68
task:kworker/u8:11 state:R running task stack:20784 pid:13700 tgid:13700 ppid:2 task_flags:0x4208060 flags:0x00004000
Workqueue: bat_events batadv_nc_worker
Call Trace:
context_switch kernel/sched/core.c:5377 [inline]
__schedule+0x18bc/0x4c40 kernel/sched/core.c:6764
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7086
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5855
Code: 2b 00 74 08 4c 89 f7 e8 ba b4 88 00 f6 44 24 61 02 0f 85 85 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:ffffc9000c6978e0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff920018d2f28 RCX: ffff88802f970ae8
RDX: dffffc0000000000 RSI: ffffffff8c0ab8e0 RDI: ffffffff8c5fb600
RBP: ffffc9000c697a30 R08: ffffffff942c3847 R09: 1ffffffff2858708
R10: dffffc0000000000 R11: fffffbfff2858709 R12: 1ffff920018d2f24
R13: dffffc0000000000 R14: ffffc9000c697940 R15: 0000000000000246
rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
rcu_read_lock include/linux/rcupdate.h:849 [inline]
batadv_nc_process_nc_paths+0xd6/0x3a0 net/batman-adv/network-coding.c:687
batadv_nc_worker+0x52c/0x610 net/batman-adv/network-coding.c:735
process_one_work kernel/workqueue.c:3236 [inline]
process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3317
worker_thread+0x870/0xd30 kernel/workqueue.c:3398
kthread+0x7a9/0x920 kernel/kthread.c:464
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: rcu_preempt kthread timer wakeup didn't happen for 10505 jiffies! g150965 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=0 timer-softirq=165260
rcu: rcu_preempt kthread starved for 10506 jiffies! g150965 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:26104 pid:17 tgid:17 ppid:2 task_flags:0x208040 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5377 [inline]
__schedule+0x18bc/0x4c40 kernel/sched/core.c:6764
__schedule_loop kernel/sched/core.c:6841 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6856
schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2024
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2226
kthread+0x7a9/0x920 kernel/kthread.c:464
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244