rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5696/1:b..l P5698/1:b..l P5699/3:b..l
rcu: (detected by 1, t=10502 jiffies, g=8689, q=566 ncpus=2)
task:syz-executor state:R running task stack:26848 pid:5699 tgid:5699 ppid:5216 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 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
__raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
filemap_map_pages+0x1707/0x1e70 mm/filemap.c:3655
do_fault_around mm/memory.c:5019 [inline]
do_read_fault mm/memory.c:5052 [inline]
do_fault mm/memory.c:5191 [inline]
do_pte_missing mm/memory.c:3947 [inline]
handle_pte_fault+0x39aa/0x6eb0 mm/memory.c:5522
__handle_mm_fault mm/memory.c:5665 [inline]
handle_mm_fault+0xf70/0x1880 mm/memory.c:5833
do_user_addr_fault arch/x86/mm/fault.c:1338 [inline]
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x459/0x8c0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f12f7150260
RSP: 002b:00007ffc826837e8 EFLAGS: 00010206
RAX: 0000000000000004 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 00007f12f71e6f3c RDI: 00007ffc82683810
RBP: 00007f12f71e6f41 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000032
R13: 00007ffc82683810 R14: 0000000000018bc1 R15: 00007ffc82683d70
task:syz-executor state:R running task stack:26848 pid:5698 tgid:5698 ppid:5217 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 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:instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
RIP: 0010:atomic_inc include/linux/atomic/atomic-instrumented.h:435 [inline]
RIP: 0010:mt_validate_nulls lib/maple_tree.c:7547 [inline]
RIP: 0010:mt_validate+0x4320/0x4aa0 lib/maple_tree.c:7596
Code: 24 30 4c 0b 7c 24 08 0f 84 45 03 00 00 e8 48 5b f0 f5 48 c7 c7 60 bf 0f 95 be 04 00 00 00 e8 77 71 54 f6 f0 ff 05 40 a4 6c 09 <48> c7 c7 80 bf 0f 95 be 04 00 00 00 e8 5f 71 54 f6 f0 ff 05 48 a4
RSP: 0018:ffffc9000951f700 EFLAGS: 00000203
RAX: ffffffff8ba31b01 RBX: ffffc9000951f7f8 RCX: ffffffff8ba31b19
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff950fbf60
RBP: ffffc9000951f8f0 R08: 0000000000000003 R09: fffffbfff2a1f7ec
R10: dffffc0000000000 R11: fffffbfff2a1f7ec R12: 1ffff920012a3f03
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff88801f215fb8
validate_mm+0xe7/0x530 mm/mmap.c:329
mmap_region+0x1a61/0x2090 mm/mmap.c:3071
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: 0033:0x7f90e5b77a33
RSP: 002b:00007ffdbf1a7848 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000600000 RCX: 00007f90e5b77a33
RDX: 0000000000000003 RSI: 00000000005c0000 RDI: 0000001b31960000
RBP: 0000001b31960000 R08: 0000000000000004 R09: 0000000000040000
R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000032
R13: 0000000000018db0 R14: 0000000000018d62 R15: 00007ffdbf1a7b20
task:rm state:R running task stack:24992 pid:5696 tgid:5696 ppid:5666 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 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_is_held_type+0x13b/0x190
Code: 75 44 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 75 4c 41 f7 c4 00 02 00 00 74 01 fb 65 48 8b 04 25 28 00 00 00 <48> 3b 44 24 08 75 42 89 d8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f
RSP: 0018:ffffc90009a8f688 EFLAGS: 00000206
RAX: 8e015182cb7aab00 RBX: 0000000000000001 RCX: ffff88802fa11e00
RDX: 0000000000000000 RSI: ffffffff8beae6e0 RDI: ffffffff8c3f8b40
RBP: 0000000000000000 R08: ffffffff8ba4f385 R09: ffffffff8ba4f2bb
R10: 0000000000000004 R11: ffff88802fa11e00 R12: 0000000000000246
R13: ffff88802fa11e00 R14: 00000000ffffffff R15: ffff88802a5f5718
lock_is_held include/linux/lockdep.h:249 [inline]
mt_locked lib/maple_tree.c:781 [inline]
mt_slot lib/maple_tree.c:788 [inline]
mas_slot lib/maple_tree.c:821 [inline]
mas_get_slot+0x15e/0x250 lib/maple_tree.c:7054
mt_validate+0x27d2/0x4aa0 lib/maple_tree.c:7593
validate_mm+0xe7/0x530 mm/mmap.c:329
mmap_region+0x1a61/0x2090 mm/mmap.c:3071
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: 0033:0x7f760ac6eb74
RSP: 002b:00007ffe1af07938 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007ffe1af079b0 RCX: 00007f760ac6eb74
RDX: 0000000000000001 RSI: 0000000000028000 RDI: 00007f760ac1e000
RBP: 00007ffe1af07ca0 R08: 0000000000000003 R09: 0000000000097000
R10: 0000000000000812 R11: 0000000000000246 R12: 00007f760ac4a0c0
R13: 00007ffe1af07d28 R14: 0000000000096066 R15: 0000000000000000
rcu: rcu_preempt kthread starved for 10389 jiffies! g8689 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:25816 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 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+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/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