rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-...D } 2665 jiffies s: 1633 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: 3004 Comm: udevd Not tainted 6.1.92-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:debug_spin_lock_before kernel/locking/spinlock_debug.c:86 [inline] RIP: 0010:do_raw_spin_lock+0xbd/0x370 kernel/locking/spinlock_debug.c:114 Code: 00 4d 8d 6c 24 10 4c 89 e8 48 c1 e8 03 48 89 44 24 20 80 3c 10 00 74 12 4c 89 ef e8 ad 4c 76 00 48 ba 00 00 00 00 00 fc ff df <49> 8b 45 00 65 48 8b 0d 07 af 96 7e 48 89 4c 24 28 48 39 c8 0f 84 RSP: 0018:ffffc900001e0be0 EFLAGS: 00000046 RAX: 1ffff1100ba1dc5f RBX: ffff88805d0ee2ec RCX: 1ffff9200003c184 RDX: dffffc0000000000 RSI: 1ffff9200003c184 RDI: ffff88805d0ee2e8 RBP: ffffc900001e0cb0 R08: dffffc0000000000 R09: fffffbfff2093866 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88805d0ee2e8 R13: ffff88805d0ee2f8 R14: dffffc0000000000 R15: ffff88807debe408 FS: 00007ff4aaeb0c80(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000562110076e20 CR3: 0000000028a88000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: spin_lock include/linux/spinlock.h:351 [inline] advance_sched+0x47/0x970 net/sched/sch_taprio.c:700 __run_hrtimer kernel/time/hrtimer.c:1686 [inline] __hrtimer_run_queues+0x5e5/0xe50 kernel/time/hrtimer.c:1750 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1812 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline] __sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:__rb_insert lib/rbtree.c:185 [inline] RIP: 0010:__rb_insert_augmented+0x139/0x600 lib/rbtree.c:459 Code: 0f 84 8a 02 00 00 49 89 ef 49 c1 ef 03 48 b8 00 00 00 00 00 fc ff df 41 80 3c 07 00 74 08 48 89 ef e8 1b 50 5d f7 f6 45 00 01 <0f> 85 60 02 00 00 49 89 dd 48 83 cb 01 48 b8 00 00 00 00 00 fc ff RSP: 0018:ffffc900031af720 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff88807eaa4170 RCX: ffff88807debd940 RDX: ffffffff81c9add0 RSI: ffff8880289b2500 RDI: ffff888017ea7720 RBP: ffff888073005790 R08: dffffc0000000000 R09: ffff888017ea7728 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807eaa4178 R13: 1ffff1100fd5482f R14: ffff88807f97e100 R15: 1ffff1100e600af2 anon_vma_chain_link mm/rmap.c:156 [inline] anon_vma_clone+0x228/0x4d0 mm/rmap.c:297 anon_vma_fork+0x83/0x580 mm/rmap.c:350 dup_mmap kernel/fork.c:662 [inline] dup_mm kernel/fork.c:1540 [inline] copy_mm+0xf92/0x19c0 kernel/fork.c:1589 copy_process+0x19d5/0x4060 kernel/fork.c:2267 kernel_clone+0x222/0x920 kernel/fork.c:2682 __do_sys_clone kernel/fork.c:2823 [inline] __se_sys_clone kernel/fork.c:2807 [inline] __x64_sys_clone+0x231/0x280 kernel/fork.c:2807 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7ff4aaafca12 Code: 41 5d 41 5e 41 5f c3 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 76 10 48 8b 15 e7 43 0f 00 f7 d8 64 89 02 48 83 RSP: 002b:00007ffe8f7c5068 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000562110074b01 RCX: 00007ff4aaafca12 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000003 R08: 0000000000000000 R09: 0000562110050910 R10: 00007ff4aaeb0f50 R11: 0000000000000246 R12: 0000562110072fd0 R13: 0000000000000000 R14: 0000000000000000 R15: 0000562110050910