syzbot

rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-...D } 2683 jiffies s: 661 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5097 Comm: syz-executor195 Not tainted 6.9.0-rc5-syzkaller-00031-g71b1543c83d6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:mark_lock+0x151/0x350 kernel/locking/lockdep.c:4697
Code: 42 80 3c 28 00 74 08 48 89 df e8 3a 75 87 00 41 bc 01 00 00 00 44 85 33 74 16 44 89 e0 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f <5d> c3 cc cc cc cc e8 84 3c ff ff 85 c0 0f 84 33 01 00 00 45 89 f6
RSP: 0018:ffffc90000007900 EFLAGS: 00000086
RAX: 0000000000000001 RBX: ffffffff92c1d85e RCX: ffffffff8172edda
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff92f32500
RBP: 0000000000000000 R08: ffffffff92f32507 R09: 1ffffffff25e64a0
R10: dffffc0000000000 R11: fffffbfff25e64a1 R12: 0000000000000001
R13: ffff888015779e00 R14: 1ffff11002aef538 R15: ffff88801577a9c0
FS:  00005555870fd380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555870fdca8 CR3: 0000000024d2c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 mark_usage kernel/locking/lockdep.c:4564 [inline]
 __lock_acquire+0xb8e/0x1fd0 kernel/locking/lockdep.c:5091
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
 debug_object_activate+0x16d/0x510 lib/debugobjects.c:708
 debug_hrtimer_activate kernel/time/hrtimer.c:423 [inline]
 debug_activate kernel/time/hrtimer.c:478 [inline]
 enqueue_hrtimer+0x30/0x3c0 kernel/time/hrtimer.c:1090
 __run_hrtimer kernel/time/hrtimer.c:1709 [inline]
 __hrtimer_run_queues+0x6d5/0xd50 kernel/time/hrtimer.c:1756
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1818
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5758
Code: 2b 00 74 08 4c 89 f7 e8 9a e6 87 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc900020cf740 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92000419ef4 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8bcaca20 RDI: ffffffff8c1f86e0
RBP: ffffc900020cf898 R08: ffffffff92f3259f R09: 1ffffffff25e64b3
R10: dffffc0000000000 R11: fffffbfff25e64b4 R12: 1ffff92000419ef0
R13: dffffc0000000000 R14: ffffc900020cf7a0 R15: 0000000000000246
 down_write+0x3a/0x50 kernel/locking/rwsem.c:1579
 vma_start_write include/linux/mm.h:730 [inline]
 dup_mmap kernel/fork.c:671 [inline]
 dup_mm kernel/fork.c:1688 [inline]
 copy_mm+0xa5c/0x2180 kernel/fork.c:1737
 copy_process+0x187a/0x3df0 kernel/fork.c:2390
 kernel_clone+0x226/0x8f0 kernel/fork.c:2797
 __do_sys_clone kernel/fork.c:2940 [inline]
 __se_sys_clone kernel/fork.c:2924 [inline]
 __x64_sys_clone+0x258/0x2a0 kernel/fork.c:2924
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0703085e63
Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00
RSP: 002b:00007ffdd06d7418 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0703085e63
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000000 R08: 0000000000000000 R09: 00007f07030430b0
R10: 00005555870fd650 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000035ac4 R14: 00007ffdd06d753c R15: 0000000000000003
 </TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 2.522 msecs