------------[ cut here ]------------
WARNING: CPU: 0 PID: 14 at kernel/rcu/tree_stall.h:937 rcu_check_gp_start_stall+0x2dc/0x460 kernel/rcu/tree_stall.h:929
Modules linked in:
CPU: 0 PID: 14 Comm: ksoftirqd/0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:rcu_check_gp_start_stall+0x2dc/0x460 kernel/rcu/tree_stall.h:937
Code: ff ff ff 48 c7 c7 20 9c 33 96 be 04 00 00 00 e8 da 01 59 00 48 89 df b8 01 00 00 00 87 05 dc 7c ce 14 85 c0 0f 85 19 ff ff ff <0f> 0b 48 81 ff c0 33 32 8c 74 47 48 c7 c0 84 41 8b 8d 48 c1 e8 03
RSP: 0018:ffffc90000d37a78 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffffffff8c3233c0 RCX: ffffffff81651f36
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff8c3233c0
RBP: ffffc90000d37cb0 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff2c67384 R12: 0000000000002904
R13: dffffc0000000000 R14: 0000000000000a06 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555b8977d0 CR3: 000000002ac70000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 rcu_core+0x631/0x1650 kernel/rcu/tree.c:2758
 handle_softirqs+0x336/0x830 kernel/softirq.c:576
 run_ksoftirqd+0xa4/0x100 kernel/softirq.c:943
 smpboot_thread_fn+0x520/0x990 kernel/smpboot.c:164
 kthread+0x42e/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>