rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P30550/1:b..l P22968/1:b..l
rcu: (detected by 1, t=10502 jiffies, g=231613, q=253 ncpus=2)
task:kworker/u8:7 state:R running task stack:23248 pid:22968 tgid:22968 ppid:2 flags:0x00004000
Workqueue: bat_events batadv_nc_worker
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0xe37/0x5490 kernel/sched/core.c:6529
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:6851
irqentry_exit+0x36/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:check_region_inline mm/kasan/generic.c:174 [inline]
RIP: 0010:kasan_check_range+0x1b/0x1a0 mm/kasan/generic.c:189
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 85 f6 0f 84 50 01 00 00 48 89 f8 41 54 44 0f b6 c2 48 01 f0 55 53 <0f> 82 c6 00 00 00 48 b8 ff ff ff ff ff 7f ff ff 48 39 f8 0f 83 b3
RSP: 0018:ffffc9000362faa8 EFLAGS: 00000296
RAX: ffffffff9012f360 RBX: 1ffff920006c5f5b RCX: ffffffff81686ad9
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff9012f358
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8ddb5be0
R13: 000000000003db0c R14: 000000000003db0c R15: dffffc0000000000
instrument_atomic_read include/linux/instrumented.h:68 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
cpumask_test_cpu include/linux/cpumask.h:562 [inline]
cpu_online include/linux/cpumask.h:1105 [inline]
trace_lock_release include/trace/events/lock.h:69 [inline]
lock_release+0xa9/0x6f0 kernel/locking/lockdep.c:5770
rcu_lock_release include/linux/rcupdate.h:336 [inline]
rcu_read_unlock include/linux/rcupdate.h:869 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:412 [inline]
batadv_nc_worker+0x88c/0x1060 net/batman-adv/network-coding.c:719
process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xf20 kernel/workqueue.c:3390
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
task:syz.3.5344 state:R running task stack:26368 pid:30550 tgid:30549 ppid:27950 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0xe37/0x5490 kernel/sched/core.c:6529
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:6851
irqentry_exit+0x36/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_is_held_type+0x107/0x150 kernel/locking/lockdep.c:5836
Code: 00 00 b8 ff ff ff ff 65 0f c1 05 dc 7e f1 74 83 f8 01 75 2d 9c 58 f6 c4 02 75 43 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 <44> 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 45 31 ed eb
RSP: 0018:ffffc9000333f3d0 EFLAGS: 00000292
RAX: 0000000000000046 RBX: ffff88807b590b08 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8b4cc7c0 RDI: ffffffff8bb09880
RBP: ffffffff8ddb5be0 R08: 0000000000000007 R09: 000000000007ffff
R10: 000000000000000a R11: 0000000000000000 R12: ffff88807b590000
R13: 0000000000000001 R14: 00000000ffffffff R15: 0000000000000001
lookup_page_ext mm/page_ext.c:254 [inline]
page_ext_get+0x132/0x310 mm/page_ext.c:526
__page_table_check_zero+0xcd/0x370 mm/page_table_check.c:148
page_table_check_alloc include/linux/page_table_check.h:33 [inline]
post_alloc_hook+0x2c0/0x350 mm/page_alloc.c:1494
prep_new_page mm/page_alloc.c:1501 [inline]
get_page_from_freelist+0x1351/0x2e50 mm/page_alloc.c:3439
__alloc_pages_noprof+0x22b/0x2460 mm/page_alloc.c:4695
alloc_pages_mpol_noprof+0x275/0x610 mm/mempolicy.c:2263
folio_alloc_mpol_noprof+0x36/0xd0 mm/mempolicy.c:2281
vma_alloc_folio_noprof+0xee/0x1b0 mm/mempolicy.c:2312
folio_prealloc mm/memory.c:1060 [inline]
alloc_anon_folio mm/memory.c:4498 [inline]
do_anonymous_page mm/memory.c:4555 [inline]
do_pte_missing mm/memory.c:3945 [inline]
handle_pte_fault mm/memory.c:5521 [inline]
__handle_mm_fault+0x2d33/0x55b0 mm/memory.c:5664
handle_mm_fault+0x44e/0x7b0 mm/memory.c:5832
faultin_page mm/gup.c:1194 [inline]
__get_user_pages+0x475/0x15c0 mm/gup.c:1493
populate_vma_page_range+0x27f/0x3a0 mm/gup.c:1932
__mm_populate+0x1d6/0x380 mm/gup.c:2035
do_mlock+0x404/0x7c0 mm/mlock.c:653
__do_sys_mlock mm/mlock.c:661 [inline]
__se_sys_mlock mm/mlock.c:659 [inline]
__x64_sys_mlock+0x59/0x80 mm/mlock.c:659
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f64de779e79
RSP: 002b:00007f64df5de038 EFLAGS: 00000246 ORIG_RAX: 0000000000000095
RAX: ffffffffffffffda RBX: 00007f64de915f80 RCX: 00007f64de779e79
RDX: 0000000000000000 RSI: 0000000000800000 RDI: 0000000020000000
RBP: 00007f64de7e7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f64de915f80 R15: 00007ffec3886018
rcu: rcu_preempt kthread starved for 10561 jiffies! g231613 f0x0 RCU_GP_DOING_FQS(6) ->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:27312 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0xe37/0x5490 kernel/sched/core.c:6529
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:6851
irqentry_exit+0x36/0x90 kernel/entry/common.c:354
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707
RIP: 0010:rcu_gp_fqs_loop+0x267/0xb00 kernel/rcu/tree.c:2052
Code: 00 00 48 c7 44 24 40 00 00 00 00 4c 89 e0 48 c1 e8 03 80 3c 18 00 0f 85 25 07 00 00 48 8b 05 70 10 2f 0c 48 3b 05 01 33 6a 0c <0f> 89 4c 02 00 00 83 e5 06 41 89 ed 0f 85 40 02 00 00 65 48 8b 2d
RSP: 0018:ffffc90000167d18 EFLAGS: 00000202
RAX: 00000001000437ef RBX: dffffc0000000000 RCX: 0000000000000006
RDX: 0000000000000001 RSI: ffffffff8b4cc4c0 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff9012f35f R11: 0000000000000000 R12: ffffffff8da0f200
R13: ffffc90000167d98 R14: 0000000000000000 R15: 0000000000000000
rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2236
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
NMI backtrace for cpu 0 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:106 [inline]
NMI backtrace for cpu 0 skipped: idling at acpi_safe_halt+0x1a/0x20 drivers/acpi/processor_idle.c:111