rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2691 jiffies s: 223125 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 18945 Comm: modprobe Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4815 [inline]
RIP: 0010:__lock_acquire+0x7f0/0x7ea0 kernel/locking/lockdep.c:5121
Code: c0 0f 85 d5 15 00 00 48 8b 44 24 38 44 8b 38 41 8d 47 ff 83 f8 ff 41 bc ff ff ff ff 44 0f 4c e0 41 ff c4 45 8d 77 01 49 ff cf <44> 89 f0 83 c0 fe 0f 88 73 01 00 00 44 89 fb 81 e3 ff ff ff 7f 83
RSP: 0018:ffffc900001e0240 EFLAGS: 00000046
RAX: ffff88802ce1c7a0 RBX: 0000000000080000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff91b70240
RBP: ffffc900001e0488 R08: dffffc0000000000 R09: 1ffffffff236e048
R10: dffffc0000000000 R11: fffffbfff236e049 R12: 0000000000000000
R13: ffff88802ce1bc00 R14: 0000000000000004 R15: 0000000000000002
FS:  0000000000000000(0000) GS:ffff8880b8d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3171eff8 CR3: 0000000077903000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 lock_acquire+0x1bc/0x4a0 kernel/locking/lockdep.c:5790
 rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
 rcu_read_lock include/linux/rcupdate.h:791 [inline]
 trace_call_bpf+0xe0/0x6b0 kernel/trace/bpf_trace.c:134
 perf_trace_run_bpf_submit+0x79/0x1c0 kernel/events/core.c:10037
 perf_trace_preemptirq_template+0x268/0x320 include/trace/events/preemptirq.h:14
 trace_irq_enable_rcuidle+0xd3/0x140 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
RIP: 0010:rcu_read_unlock_special+0x7f/0x510 kernel/rcu/tree_plugin.h:685
Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 d2 68 95 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0018:ffffc900001e0900 EFLAGS: 00000206
RAX: ba9ff84383429300 RBX: 1ffff9200003c128 RCX: ba9ff84383429300
RDX: dffffc0000000000 RSI: ffffffff8aac19a0 RDI: ffffffff8aff71e0
RBP: ffffc900001e0a00 R08: ffffffff91b7030f R09: 1ffffffff236e061
R10: dffffc0000000000 R11: fffffbfff236e062 R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8d3bb00 R15: 0000000000000002
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:450 [inline]
 aoecmd_cfg+0x9ad/0xa40 drivers/block/aoe/aoecmd.c:1374
 call_timer_fn+0x1ac/0x670 kernel/time/timer.c:1701
 expire_timers kernel/time/timer.c:1752 [inline]
 __run_timers+0x56c/0x810 kernel/time/timer.c:2023
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:2036
 handle_softirqs+0x291/0x910 kernel/softirq.c:596
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:get_reg arch/x86/kernel/unwind_orc.c:-1 [inline]
RIP: 0010:unwind_next_frame+0xe7a/0x1fd0 arch/x86/kernel/unwind_orc.c:600
Code: 00 00 00 00 fc ff df 80 3c 08 00 74 08 4c 89 f7 e8 6b 99 9a 00 49 8b 3e 48 85 ff 0f 84 93 07 00 00 48 83 c7 20 e8 c6 19 00 00 <49> 89 c6 4c 8d 7b 40 4c 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc
RSP: 0018:ffffc90003eeeca0 EFLAGS: 00000286
RAX: 0000000000000812 RBX: ffffc90003eeed48 RCX: dffffc0000000000
RDX: 1ffffffff207eebe RSI: 0000000000000000 RDI: ffffc90003eeff78
RBP: dffffc0000000000 R08: 0000000000000004 R09: 0000000000000010
R10: dffffc0000000000 R11: fffff520007dddb5 R12: ffffffff903f75ec
R13: ffffffff903f75f0 R14: ffffc90003eeed7e R15: ffffc90003eeed7e
 arch_stack_walk+0x10c/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0xa6/0xf0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
 kasan_save_free_info+0x27/0x40 mm/kasan/generic.c:516
 ____kasan_slab_free+0x126/0x1f0 mm/kasan/common.c:237
 kasan_slab_free include/linux/kasan.h:177 [inline]
 slab_free_hook mm/slub.c:1729 [inline]
 slab_free_freelist_hook+0x133/0x1b0 mm/slub.c:1755
 slab_free mm/slub.c:3687 [inline]
 kmem_cache_free_bulk+0x364/0x480 mm/slub.c:3805
 mt_free_bulk lib/maple_tree.c:164 [inline]
 mas_destroy+0x251f/0x2d40 lib/maple_tree.c:5864
 mas_store_prealloc+0x32c/0x430 lib/maple_tree.c:5792
 __vma_adjust+0x121d/0x1d00 mm/mmap.c:832
 vma_adjust include/linux/mm.h:2810 [inline]
 __split_vma+0x3a2/0x4f0 mm/mmap.c:-1
 do_mas_align_munmap+0x399/0x12d0 mm/mmap.c:2480
 do_mas_munmap+0x240/0x2b0 mm/mmap.c:2650
 __mmap_region mm/mmap.c:2698 [inline]
 mmap_region+0x7ab/0x1c50 mm/mmap.c:2916
 do_mmap+0x9ce/0x10d0 mm/mmap.c:1436
 vm_mmap_pgoff+0x1c1/0x2d0 mm/util.c:520
 ksys_mmap_pgoff+0x4bf/0x720 mm/mmap.c:1482
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f8ff3cc9242
Code: 08 00 04 00 00 eb e2 90 41 f7 c1 ff 0f 00 00 75 27 55 89 cd 53 48 89 fb 48 85 ff 74 33 41 89 ea 48 89 df b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 5e 5b 5d c3 0f 1f 00 c7 05 46 40 01 00 16 00
RSP: 002b:00007ffda9ecc1f8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f8ff39d6000 RCX: 00007f8ff3cc9242
RDX: 0000000000000003 RSI: 0000000000002000 RDI: 00007f8ff39d6000
RBP: 0000000000000812 R08: 0000000000000000 R09: 000000000002c000
R10: 0000000000000812 R11: 0000000000000206 R12: 00007ffda9ecc2b8
R13: 00007f8ff3ca6ab0 R14: 00007ffda9ecc670 R15: 00000fffb53d9842
 </TASK>