------------[ cut here ]------------
WARNING: CPU: 0 PID: 26696 at kernel/rcu/tree_stall.h:970 rcu_check_gp_start_stall+0x2dc/0x460 kernel/rcu/tree_stall.h:962
Modules linked in:
CPU: 0 PID: 26696 Comm: syz.3.5763 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:rcu_check_gp_start_stall+0x2dc/0x460 kernel/rcu/tree_stall.h:970
Code: ff ff ff 48 c7 c7 20 0f c4 96 be 04 00 00 00 e8 5a 56 66 00 48 89 df b8 01 00 00 00 87 05 4c 04 57 15 85 c0 0f 85 19 ff ff ff <0f> 0b 48 81 ff 80 2b b3 8c 74 47 48 c7 c0 e4 00 20 8e 48 c1 e8 03
RSP: 0000:ffffc90003767ad8 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffffffff8cb32b80 RCX: ffffffff816d0ac6
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff8cb32b80
RBP: ffffc90003767d50 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff2d881e4 R12: 0000000000002904
R13: dffffc0000000000 R14: 0000000000000a06 R15: dffffc0000000000
FS:  00007fe455c946c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007eff01f503b0 CR3: 0000000073437000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000060000044 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 rcu_core+0x60b/0x1740 kernel/rcu/tree.c:2552
 handle_softirqs+0x2a1/0x930 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+0x52/0xc0 arch/x86/kernel/apic/apic.c:1118
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0033:0x7fe454dbbbd0
Code: 83 c0 16 83 e0 f7 74 12 50 48 8d 3d a2 22 07 00 e8 a5 65 f9 ff 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 <83> ff 21 74 0b c3 66 2e 0f 1f 84 00 00 00 00 00 55 53 48 89 f3 48
RSP: 002b:00007fe455c93a78 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007fe455015fa0 RCX: 00007fe454d9c629
RDX: 00007fe455c93a80 RSI: 00007fe455c93bb0 RDI: 0000000000000021
RBP: 00007fe454e32b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe455016038 R14: 00007fe455015fa0 R15: 00007ffd46e5a728
 </TASK>