rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P9274/1:b..l P9271/1:b..l P9277/1:b..l P9278/1:b..l
(detected by 0, t=10502 jiffies, g=54801, q=414 ncpus=2)
task:modprobe state:R running task stack:24352 pid:9278 ppid:4550 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0x10e9/0x40d0 kernel/sched/core.c:6561
preempt_schedule_irq+0xb1/0x150 kernel/sched/core.c:6873
irqentry_exit+0x63/0x70 kernel/entry/common.c:439
asm_sysvec_reschedule_ipi+0x16/0x20 arch/x86/include/asm/idtentry.h:696
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:212
Code: 2e 0f 1f 84 00 00 00 00 00 90 53 48 89 fb e8 17 00 00 00 48 8b 3d 50 ab 7d 0c 48 89 de 5b e9 07 ad 50 00 00 00 cc cc 00 00 cc <48> 8b 04 24 65 48 8b 0d 24 98 81 7e 65 8b 15 25 98 81 7e 81 e2 00
RSP: 0018:ffffc90003d17678 EFLAGS: 00000246
RAX: ffffffff89fcff7b RBX: ffff80002d247000 RCX: ffff888030a3d940
RDX: 0000000000000000 RSI: ffff80002d247000 RDI: ffff80002d247000
RBP: ffffc90003d17850 R08: 0000000000000004 R09: 0000000000000003
R10: fffffbfff2dc5c18 R11: 1ffffffff2dc5c18 R12: 0000000000000003
R13: ffff8880651ce8a0 R14: ffff80002d247000 R15: dffffc0000000000
mas_validate_gaps lib/maple_tree.c:7025 [inline]
mt_validate+0x3779/0x4c90 lib/maple_tree.c:7241
validate_mm_mt+0xcd/0x420 mm/mmap.c:294
validate_mm+0xcc/0x2b0 mm/mmap.c:331
mmap_region+0x7aa/0x1d30 mm/mmap.c:2910
do_mmap+0x894/0xf30 mm/mmap.c:1424
vm_mmap_pgoff+0x1b2/0x2b0 mm/util.c:520
ksys_mmap_pgoff+0x516/0x6f0 mm/mmap.c:1470
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f867e579242
RSP: 002b:00007fffd2c01f88 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f867e1ef000 RCX: 00007f867e579242
RDX: 0000000000000005 RSI: 0000000000037000 RDI: 00007f867e1ef000
RBP: 0000000000000812 R08: 0000000000000000 R09: 0000000000003000
R10: 0000000000000812 R11: 0000000000000206 R12: 00007fffd2c01fd8
R13: 00007f867e2586b0 R14: 00007fffd2c023c0 R15: 00000ffffa5803f4
task:modprobe state:R running task stack:24352 pid:9277 ppid:33 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0x10e9/0x40d0 kernel/sched/core.c:6561
preempt_schedule_common+0x82/0xd0 kernel/sched/core.c:6730
preempt_schedule+0xa7/0xb0 kernel/sched/core.c:6754
preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34
__raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_unlock+0x36/0x40 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
filemap_map_pages+0xe27/0x10d0 mm/filemap.c:3499
do_fault_around mm/memory.c:4600 [inline]
do_read_fault mm/memory.c:4626 [inline]
do_fault mm/memory.c:4760 [inline]
handle_pte_fault mm/memory.c:5031 [inline]
__handle_mm_fault mm/memory.c:5173 [inline]
handle_mm_fault+0x2889/0x3e70 mm/memory.c:5294
do_user_addr_fault+0x51f/0xb10 arch/x86/mm/fault.c:1340
handle_page_fault arch/x86/mm/fault.c:1431 [inline]
exc_page_fault+0x60/0x100 arch/x86/mm/fault.c:1487
asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:608
RIP: 0033:0x7f46c2faea55
RSP: 002b:00007ffc688d4888 EFLAGS: 00010283
RAX: 00000000ffffffc4 RBX: 0000558ba2e70000 RCX: 00000000000003f0
RDX: 0000000000000000 RSI: 00007f46c30ce3f0 RDI: 00007ffc688d4fa4
RBP: 00007ffc688d49d8 R08: 0000000000000000 R09: 00007f46c30fda60
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc688d4a00 R14: 00007f46c312e000 R15: 0000558ba2e71d98
task:modprobe state:R running task stack:24352 pid:9271 ppid:5353 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0x10e9/0x40d0 kernel/sched/core.c:6561
preempt_schedule_common+0x82/0xd0 kernel/sched/core.c:6730
preempt_schedule+0xa7/0xb0 kernel/sched/core.c:6754
preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34
__raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_unlock+0x36/0x40 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
filemap_map_pages+0xe27/0x10d0 mm/filemap.c:3499
do_fault_around mm/memory.c:4600 [inline]
do_read_fault mm/memory.c:4626 [inline]
do_fault mm/memory.c:4760 [inline]
handle_pte_fault mm/memory.c:5031 [inline]
__handle_mm_fault mm/memory.c:5173 [inline]
handle_mm_fault+0x2889/0x3e70 mm/memory.c:5294
do_user_addr_fault+0x51f/0xb10 arch/x86/mm/fault.c:1340
handle_page_fault arch/x86/mm/fault.c:1431 [inline]
exc_page_fault+0x60/0x100 arch/x86/mm/fault.c:1487
asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:608
RIP: 0033:0x7fb424e669b0
RSP: 002b:00007fff077b7f28 EFLAGS: 00010206
RAX: 00007fb424d297e8 RBX: 000000cf0171fd79 RCX: 00007fb424d297e8
RDX: 00007fb424e669b0 RSI: 00007fb424fe8980 RDI: 0000000000000001
RBP: 00007fff077b81e0 R08: 0000000000000000 R09: 000000000000000e
R10: fffffffffffff68e R11: 0000000000000206 R12: fffffffffffffff8
R13: 000000cf00fd9e4e R14: 0000000000000000 R15: 00007fb424ff5310
task:modprobe state:R running task stack:24352 pid:9274 ppid:6039 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0x10e9/0x40d0 kernel/sched/core.c:6561
preempt_schedule_irq+0xb1/0x150 kernel/sched/core.c:6873
irqentry_exit+0x63/0x70 kernel/entry/common.c:439
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:debug_lockdep_rcu_enabled+0xb/0x30 kernel/rcu/update.c:280
Code: 6b 8a 48 c7 c6 80 22 6c 8a e8 11 b1 3d f7 0f 0b eb d1 00 00 cc cc 00 00 cc cc 00 00 cc cc 00 31 c0 83 3d 77 4a ef 03 00 74 1d <83> 3d 02 7e ef 03 00 74 14 65 48 8b 0d 54 38 f3 75 31 c0 83 b9 dc
RSP: 0018:ffffc90003c975c8 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff888026b53b80
RDX: 0000000000000000 RSI: 00007fd5a2d776c5 RDI: ffffffffa0003dd4
RBP: 0000000000000000 R08: dffffc0000000000 R09: fffffbfff2117049
R10: fffffbfff2117049 R11: 1ffffffff2117048 R12: 000000000000052c
R13: dffffc0000000000 R14: 00007fd5a2d776c5 R15: 0000000000000000
rcu_read_unlock include/linux/rcupdate.h:820 [inline]
is_bpf_text_address+0x1ec/0x2a0 kernel/bpf/core.c:737
kernel_text_address+0x9c/0xd0 kernel/extable.c:125
__kernel_text_address+0x9/0x30 kernel/extable.c:79
unwind_get_return_address+0x49/0x80 arch/x86/kernel/unwind_orc.c:323
arch_stack_walk+0xf2/0x140 arch/x86/kernel/stacktrace.c:26
stack_trace_save+0x98/0xe0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:45 [inline]
kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
kasan_save_free_info+0x2d/0x50 mm/kasan/generic.c:516
____kasan_slab_free+0x126/0x1e0 mm/kasan/common.c:236
kasan_slab_free include/linux/kasan.h:177 [inline]
slab_free_hook mm/slub.c:1724 [inline]
slab_free_freelist_hook+0x131/0x1a0 mm/slub.c:1750
slab_free mm/slub.c:3661 [inline]
kmem_cache_free+0xf7/0x290 mm/slub.c:3683
remove_vma mm/mmap.c:143 [inline]
exit_mmap+0x45f/0x8e0 mm/mmap.c:3260
__mmput+0x118/0x3c0 kernel/fork.c:1200
exit_mm+0x1e6/0x2c0 kernel/exit.c:565
do_exit+0x8b9/0x2400 kernel/exit.c:858
do_group_exit+0x217/0x2d0 kernel/exit.c:1021
__do_sys_exit_group kernel/exit.c:1032 [inline]
__se_sys_exit_group kernel/exit.c:1030 [inline]
__x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1030
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fd5a2d776c5
RSP: 002b:00007ffeed3a5e78 EFLAGS: 00000206 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007fd5a2e78fe8 RCX: 00007fd5a2d776c5
RDX: 00000000000000e7 RSI: ffffffffffffff88 RDI: 0000000000000001
RBP: 0000000000000001 R08: 00007ffeed3a5e08 R09: 0000000000000000
R10: 00007ffeed3a5ca0 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fd5a2e77680 R15: 00007fd5a2e79000
rcu: rcu_preempt kthread starved for 10275 jiffies! g54801 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
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:27904 pid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0x10e9/0x40d0 kernel/sched/core.c:6561
schedule+0xb9/0x180 kernel/sched/core.c:6637
schedule_timeout+0x15c/0x280 kernel/time/timer.c:1965
rcu_gp_fqs_loop+0x2f2/0x1310 kernel/rcu/tree.c:1706
rcu_gp_kthread+0x95/0x380 kernel/rcu/tree.c:1905
kthread+0x29d/0x330 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline]
NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline]
NMI backtrace for cpu 1 skipped: idling at default_idle+0xb/0x10 arch/x86/kernel/process.c:735
sched: RT throttling activated