rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P4327 P4352 1-.... } 3256 jiffies s: 1425 root: 0x2/T
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4351 Comm: syz.2.4 Not tainted 6.1.116-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:asm_sysvec_apic_timer_interrupt+0x0/0x20 arch/x86/include/asm/idtentry.h:690
Code: e9 f5 04 00 00 0f 1f 44 00 00 0f 01 ca fc 6a ff e8 f5 03 00 00 48 89 c4 48 89 e7 e8 ba 4b e7 ff e9 d5 04 00 00 0f 1f 44 00 00 <0f> 01 ca fc 6a ff e8 d5 03 00 00 48 89 c4 48 89 e7 e8 0a 4a e7 ff
RSP: 0018:ffffc900001df678 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 1ffffffff1f165cb RCX: 0000000000000000
RDX: 0000000000000010 RSI: 0000000000000014 RDI: ffffc900001df7e0
RBP: dffffc0000000000 R08: dffffc0000000000 R09: ffffc900001df7d0
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc900001df780
R13: ffffffff8f8b2e58 R14: ffffffff8f8b2e54 R15: ffffc900001df7d0
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f77a1043f98 CR3: 000000007cb70000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
RIP: 0010:unwind_next_frame+0x1758/0x2220 arch/x86/kernel/unwind_orc.c:598
Code: 7c 24 20 48 8b 5c 24 50 0f b6 04 2b 84 c0 0f 85 41 06 00 00 48 8b 44 24 48 0f b6 04 28 84 c0 0f 85 50 06 00 00 41 0f b7 75 00 <c1> ee 04 83 e6 0f 83 fe 04 0f 84 cd 00 00 00 83 fe 01 0f 84 24 01
RSP: 0018:ffffc900001df6a0 EFLAGS: 00000246
 </IRQ>
 <TASK>
 </TASK>