rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P35/1:b..l P14861/1:b..l
rcu: (detected by 1, t=10502 jiffies, g=105721, q=763 ncpus=2)
task:modprobe state:R running task stack:22608 pid:14861 tgid:14861 ppid:62 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x1800/0x4a60 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:ma_pivots lib/maple_tree.c:659 [inline]
RIP: 0010:mas_data_end lib/maple_tree.c:1449 [inline]
RIP: 0010:mt_validate_nulls lib/maple_tree.c:7549 [inline]
RIP: 0010:mt_validate+0x43c5/0x4aa0 lib/maple_tree.c:7596
Code: 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 84 c0 0f 85 99 04 00 00 44 0f b6 3b e9 0c 01 00 00 e8 9b 87 e8 f5 <49> 8d 5d 08 eb 07 e8 90 87 e8 f5 31 db 4c 89 e8 48 c1 e8 03 48 b9
RSP: 0018:ffffc9000355f2c0 EFLAGS: 00000293
RAX: ffffffff8baafbc5 RBX: ffffc9000355f3b8 RCX: ffff888028ea1e00
RDX: 0000000000000000 RSI: ffffffff8fde7f70 RDI: 0000000000000001
RBP: ffffc9000355f4b0 R08: 0000000000000005 R09: ffffffff8baafb75
R10: 0000000000000003 R11: ffff888028ea1e00 R12: 1ffff920006abe7b
R13: ffff88802c122a00 R14: 0000000000000001 R15: ffff88802ec064d8
validate_mm+0xe7/0x530 mm/mmap.c:329
__split_vma+0xaca/0xc30 mm/mmap.c:2511
do_vmi_align_munmap+0x433/0x18c0 mm/mmap.c:2676
do_vmi_munmap+0x261/0x2f0 mm/mmap.c:2830
mmap_region+0x72f/0x2090 mm/mmap.c:2881
do_mmap+0x8f9/0x1010 mm/mmap.c:1468
vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:588
ksys_mmap_pgoff+0x4f1/0x720 mm/mmap.c:1514
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: 0033:0x7f803f3bdb74
RSP: 002b:00007ffd66d48178 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007ffd66d481b8 RCX: 00007f803f3bdb74
RDX: 0000000000000005 RSI: 0000000000014000 RDI: 00007f803f0f5000
RBP: 00007ffd66d48550 R08: 0000000000000000 R09: 0000000000007000
R10: 0000000000000812 R11: 0000000000000246 R12: 00007f803f399fc0
R13: 00007ffd66d485d8 R14: 0000000000006f68 R15: 0000000000000000
task:kworker/u8:2 state:R running task stack:21008 pid:35 tgid:35 ppid:2 flags:0x00004000
Workqueue: bat_events batadv_nc_worker
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x1800/0x4a60 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: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 e9 87 9a d5 09 40 84 ed 75 5f f7 c5 00 ff 00
RSP: 0018:ffffc90000ab79f8 EFLAGS: 00000256
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff816fd330
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8ff798e8
RBP: 0000000000000000 R08: ffffffff8ff798ef R09: 1ffffffff1fef31d
R10: dffffc0000000000 R11: fffffbfff1fef31e R12: 1ffff92000156f50
R13: ffffffff8b7f7d7b R14: dffffc0000000001 R15: fffffbfff1fef31e
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:1141 [inline]
trace_lock_release include/trace/events/lock.h:69 [inline]
lock_release+0xb0/0xa30 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+0x28b/0x610 net/batman-adv/network-coding.c:719
process_one_work kernel/workqueue.c:3231 [inline]
process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3312
worker_thread+0x86d/0xd40 kernel/workqueue.c:3390
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: rcu_preempt kthread starved for 10310 jiffies! g105721 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:26448 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x1800/0x4a60 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:2034
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2236
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/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+0x21/0x30 drivers/acpi/processor_idle.c:111