rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P14059/1:b..l P14062/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=87981, q=772 ncpus=2)
task:modprobe        state:R  running task     stack:26440 pid:14062 ppid:13940  flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5381 [inline]
 __schedule+0xc9a/0x5880 kernel/sched/core.c:6710
 preempt_schedule_irq+0x52/0x90 kernel/sched/core.c:7022
 irqentry_exit+0x35/0x80 kernel/entry/common.c:433
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0xb/0x70 kernel/kcov.c:207
Code: 0f 1e fa 48 8b be b0 01 00 00 e8 b0 ff ff ff 31 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa 65 8b 05 bd d7 7e 7e <89> c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b 14 25 80 b9 03 00 a9
RSP: 0018:ffffc9000375f5d8 EFLAGS: 00000202
RAX: 0000000080000000 RBX: ffffc9000375f6b0 RCX: ffffffff8a0e6132
RDX: ffff88802a601dc0 RSI: 0000000000000000 RDI: 0000000000000005
RBP: ffff888040c2b200 R08: 0000000000000005 R09: 0000000000000002
R10: 0000000000000003 R11: 0000000000000001 R12: ffff888079d589c1
R13: 0000000000000001 R14: ffffc9000375f6e9 R15: 0000000000000003
 ma_slots lib/maple_tree.c:798 [inline]
 mas_next_node+0x713/0x990 lib/maple_tree.c:4662
 mt_validate_nulls+0xafe/0xd10 lib/maple_tree.c:7180
 mt_validate+0x17e3/0x4370 lib/maple_tree.c:7227
 validate_mm+0x9d/0x470 mm/mmap.c:300
 do_vmi_align_munmap+0x118f/0x1690 mm/mmap.c:2561
 do_vmi_munmap+0x266/0x430 mm/mmap.c:2623
 mmap_region+0x1fb/0x28a0 mm/mmap.c:2673
 do_mmap+0x850/0xee0 mm/mmap.c:1362
 vm_mmap_pgoff+0x1a2/0x3b0 mm/util.c:543
 ksys_mmap_pgoff+0x7d/0x5b0 mm/mmap.c:1408
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fb8bd3f7b74
RSP: 002b:00007ffdd7a25678 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007ffdd7a25728 RCX: 00007fb8bd3f7b74
RDX: 0000000000000003 RSI: 0000000000001888 RDI: 00007fb8bd164000
RBP: 00007ffdd7a25a50 R08: 00000000ffffffff R09: 0000000000000000
R10: 0000000000000032 R11: 0000000000000246 R12: 00007fb8bd3daac0
R13: 00007ffdd7a25ad8 R14: 00007fb8bd165888 R15: 00007fb8bd164000
 </TASK>
task:modprobe        state:R  running task     stack:26440 pid:14059 ppid:13867  flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5381 [inline]
 __schedule+0xc9a/0x5880 kernel/sched/core.c:6710
 preempt_schedule_irq+0x52/0x90 kernel/sched/core.c:7022
 irqentry_exit+0x35/0x80 kernel/entry/common.c:433
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:lock_is_held_type+0x103/0x140 kernel/locking/lockdep.c:5837
Code: 00 00 b8 ff ff ff ff 65 0f c1 05 38 51 e2 75 83 f8 01 75 29 9c 58 f6 c4 02 75 3d 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 45 31 ed eb b9 0f 0b 48
RSP: 0018:ffffc90003a9f990 EFLAGS: 00000296
RAX: 0000000000000046 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff888079d5a7a0 R08: 0000000000000005 R09: 0000000000000300
R10: 0000000000000300 R11: 0000000000000001 R12: ffff88802749bb80
R13: 0000000000000001 R14: 00000000ffffffff R15: ffff88802749c648
 lock_is_held include/linux/lockdep.h:288 [inline]
 mt_locked lib/maple_tree.c:809 [inline]
 mt_locked lib/maple_tree.c:807 [inline]
 mt_slot+0xb5/0x190 lib/maple_tree.c:816
 mas_slot lib/maple_tree.c:849 [inline]
 mas_get_slot lib/maple_tree.c:6631 [inline]
 mas_validate_gaps lib/maple_tree.c:6955 [inline]
 mt_validate+0x2a31/0x4370 lib/maple_tree.c:7224
 validate_mm+0x9d/0x470 mm/mmap.c:300
 mmap_region+0x1ab7/0x28a0 mm/mmap.c:2868
 do_mmap+0x850/0xee0 mm/mmap.c:1362
 vm_mmap_pgoff+0x1a2/0x3b0 mm/util.c:543
 ksys_mmap_pgoff+0x42b/0x5b0 mm/mmap.c:1408
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f19175b5b74
RSP: 002b:00007ffe3931ac38 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007ffe3931ace8 RCX: 00007f19175b5b74
RDX: 0000000000000003 RSI: 0000000000002000 RDI: 00007f1917320000
RBP: 00007ffe3931b010 R08: 0000000000000000 R09: 000000000000b000
R10: 0000000000000812 R11: 0000000000000246 R12: 00007f1917598ac0
R13: 00007ffe3931b098 R14: 000000000000b278 R15: 0000000000000000
 </TASK>