------------[ cut here ]------------ WARNING: CPU: 1 PID: 24 at kernel/rcu/tree_stall.h:989 rcu_check_gp_start_stall.part.0+0x1c4/0x4b0 kernel/rcu/tree_stall.h:989 Modules linked in: CPU: 1 UID: 0 PID: 24 Comm: ksoftirqd/1 Not tainted 6.13.0-rc2-syzkaller-00382-gdccbe2047a5b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 RIP: 0010:rcu_check_gp_start_stall.part.0+0x1c4/0x4b0 kernel/rcu/tree_stall.h:989 Code: 88 61 01 00 00 be 04 00 00 00 48 c7 c7 60 b9 84 9a e8 a0 ad 7c 00 b8 01 00 00 00 87 05 b5 9c 04 19 85 c0 0f 85 3d 01 00 00 90 <0f> 0b 90 48 81 fd c0 66 1c 8e 48 c7 c3 74 5f 5f 90 74 5a 48 b8 00 RSP: 0018:ffffc900001e7ca0 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 0000000000002904 RCX: ffffffff81801ca0 RDX: fffffbfff350972c RSI: 0000000000000004 RDI: ffffffff9a84b960 RBP: ffffffff8e1c66c0 R08: 0000000000000001 R09: fffffbfff350972c R10: 0000000000000003 R11: 0000000000000000 R12: 1ffffffff1bc2040 R13: 0000000000000246 R14: ffffffff8e1c66c0 R15: ffff8880b873fb92 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe49d65246f CR3: 000000000df7e000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_check_gp_start_stall kernel/rcu/tree_stall.h:952 [inline] rcu_core+0x4d0/0x14d0 kernel/rcu/tree.c:2818 handle_softirqs+0x213/0x8f0 kernel/softirq.c:561 run_ksoftirqd kernel/softirq.c:950 [inline] run_ksoftirqd+0x3a/0x60 kernel/softirq.c:942 smpboot_thread_fn+0x661/0xa30 kernel/smpboot.c:164 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244