rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P17182/1:b..l P17157/1:b..l P35/1:b..l
rcu: (detected by 0, t=10502 jiffies, g=88989, q=181 ncpus=2)
task:kworker/u8:2 state:R running task stack:19920 pid:35 tgid:35 ppid:2 flags:0x00004000
Workqueue: bat_events batadv_nc_worker
Call Trace:
context_switch kernel/sched/core.c:5192 [inline]
__schedule+0x17e8/0x4a20 kernel/sched/core.c:6529
preempt_schedule_notrace+0x100/0x140 kernel/sched/core.c:6801
preempt_schedule_notrace_thunk+0x1a/0x30 arch/x86/entry/thunk.S:13
rcu_is_watching+0x7e/0xb0 kernel/rcu/tree.c:719
rcu_read_lock include/linux/rcupdate.h:839 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0x10b/0x610 net/batman-adv/network-coding.c:719
process_one_work kernel/workqueue.c:3248 [inline]
process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3329
worker_thread+0x86d/0xd50 kernel/workqueue.c:3409
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
task:syz-executor.3 state:R running task stack:22656 pid:17157 tgid:17156 ppid:13549 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5192 [inline]
__schedule+0x17e8/0x4a20 kernel/sched/core.c:6529
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6851
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_release+0x630/0x9f0 kernel/locking/lockdep.c:5841
Code: 3c 3b 00 74 08 4c 89 f7 e8 ad f5 89 00 f6 84 24 91 00 00 00 02 75 77 41 f7 c5 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 4b c7 44 27 08 00 00 00 00 65 48 8b 04 25
RSP: 0018:ffffc90003437500 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92000686eb2 RCX: ffffc90003437503
RDX: 0000000000000002 RSI: ffffffff8bcad360 RDI: ffffffff8c200e80
RBP: ffffc90003437628 R08: ffffffff8fadfb2f R09: 1ffffffff1f5bf65
R10: dffffc0000000000 R11: fffffbfff1f5bf66 R12: 1ffff92000686eac
R13: 0000000000000246 R14: ffffc90003437590 R15: dffffc0000000000
rcu_lock_release include/linux/rcupdate.h:336 [inline]
rcu_read_unlock include/linux/rcupdate.h:869 [inline]
percpu_ref_get_many+0xfa/0x140 include/linux/percpu-refcount.h:209
percpu_ref_get include/linux/percpu-refcount.h:222 [inline]
css_get include/linux/cgroup_refcnt.h:11 [inline]
mem_cgroup_commit_charge+0x9f/0x380 mm/memcontrol.c:3134
charge_memcg+0xb1/0x160 mm/memcontrol.c:7534
__mem_cgroup_charge+0x27/0x80 mm/memcontrol.c:7545
mem_cgroup_charge include/linux/memcontrol.h:692 [inline]
shmem_alloc_and_add_folio+0x85a/0x14e0 mm/shmem.c:1793
shmem_get_folio_gfp+0xa22/0x2660 mm/shmem.c:2189
shmem_get_folio mm/shmem.c:2294 [inline]
shmem_write_begin+0x170/0x4d0 mm/shmem.c:2899
generic_perform_write+0x322/0x640 mm/filemap.c:4016
shmem_file_write_iter+0xfc/0x120 mm/shmem.c:3075
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xa72/0xc90 fs/read_write.c:590
ksys_write+0x1a0/0x2c0 fs/read_write.c:643
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: 0033:0x7f435e47bcaf
RSP: 002b:00007f435f126e80 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000001000000 RCX: 00007f435e47bcaf
RDX: 0000000001000000 RSI: 00007f4354200000 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000000050e7
R10: 0000000000000002 R11: 0000000000000293 R12: 0000000000000003
R13: 00007f435f126f80 R14: 00007f435f126f40 R15: 00007f4354200000
task:syz-executor.1 state:R running task stack:22288 pid:17182 tgid:17170 ppid:12359 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5192 [inline]
__schedule+0x17e8/0x4a20 kernel/sched/core.c:6529
preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6708
preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6732
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
unwind_next_frame+0x2124/0x2a00 arch/x86/kernel/unwind_orc.c:672
arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
save_stack+0xfb/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x75/0x3f0 mm/page_owner.c:297
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1089 [inline]
free_unref_folios+0x103a/0x1b00 mm/page_alloc.c:2669
shrink_folio_list+0x3276/0x8ce0 mm/vmscan.c:1464
reclaim_folio_list mm/vmscan.c:2141 [inline]
reclaim_pages+0x918/0xc60 mm/vmscan.c:2177
madvise_cold_or_pageout_pte_range+0x2964/0x32a0 mm/madvise.c:550
walk_pmd_range mm/pagewalk.c:143 [inline]
walk_pud_range mm/pagewalk.c:221 [inline]
walk_p4d_range mm/pagewalk.c:256 [inline]
walk_pgd_range+0xba1/0x1810 mm/pagewalk.c:293
__walk_page_range+0x132/0x720 mm/pagewalk.c:395
walk_page_range+0x58f/0x7c0 mm/pagewalk.c:521
madvise_pageout_page_range mm/madvise.c:609 [inline]
madvise_pageout mm/madvise.c:636 [inline]
madvise_vma_behavior mm/madvise.c:1042 [inline]
madvise_walk_vmas mm/madvise.c:1268 [inline]
do_madvise+0x3219/0x4590 mm/madvise.c:1464
__do_sys_madvise mm/madvise.c:1481 [inline]
__se_sys_madvise mm/madvise.c:1479 [inline]
__x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1479
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: 0033:0x7f723367cf69
RSP: 002b:00007f72343ad0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007f72337b4050 RCX: 00007f723367cf69
RDX: 0000000000000015 RSI: 0000000000600000 RDI: 0000000020000000
RBP: 00007f72336da6fe R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f72337b4050 R15: 00007ffcff04e848
rcu: rcu_preempt kthread starved for 10502 jiffies! g88989 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:R running task stack:26576 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5192 [inline]
__schedule+0x17e8/0x4a20 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2029
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2231
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 PID: 2454 Comm: kworker/u8:10 Tainted: G W 6.10.0-rc2-next-20240606-syzkaller #0
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:csd_lock_wait kernel/smp.c:311 [inline]
RIP: 0010:smp_call_function_many_cond+0x1865/0x29d0 kernel/smp.c:855
Code: 89 e6 83 e6 01 31 ff e8 f9 0c 0c 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 a4 08 0c 00 eb 38 f3 90 42 0f b6 04 23 <84> c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 88 08 0c 00 eb e4 44
RSP: 0018:ffffc900094f7700 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 1ffff110172a88c9 RCX: ffff88802981da00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900094f78e0 R08: ffffffff818a58b7 R09: 1ffffffff25f90d8
R10: dffffc0000000000 R11: fffffbfff25f90d9 R12: dffffc0000000000
R13: ffff8880b9544648 R14: ffff8880b943fa00 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002001a000 CR3: 000000000e132000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1023
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:2069 [inline]
text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2279
text_poke_flush arch/x86/kernel/alternative.c:2470 [inline]
text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2477
arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
static_key_enable_cpuslocked+0x136/0x260 kernel/jump_label.c:205
static_key_enable+0x1a/0x20 kernel/jump_label.c:218
toggle_allocation_gate+0xb5/0x250 mm/kfence/core.c:826
process_one_work kernel/workqueue.c:3248 [inline]
process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3329
worker_thread+0x86d/0xd50 kernel/workqueue.c:3409
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244