rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2666 jiffies s: 5605 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 10528 Comm: syz.4.3012 Not tainted 6.1.129-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:244 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x4/0x80 kernel/kcov.c:320
Code: 89 f8 89 f6 49 ff c2 4c 89 11 48 c7 44 0a 08 05 00 00 00 48 89 44 0a 10 48 89 74 0a 18 4c 89 44 0a 20 c3 0f 1f 00 4c 8b 04 24 <65> 48 8b 0d 84 d4 77 7e 65 8b 05 85 d4 77 7e 25 00 01 ff 00 74 10
RSP: 0000:ffffc9000462f0d8 EFLAGS: 00000046
RAX: ffffffff81afdd6b RBX: 0000000000000000 RCX: ffff888073d09dc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000462f1d0 R08: ffffffff81afe0a8 R09: fffffbfff2256c4d
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffffc9000462f286 R14: 0000000000000000 R15: ffffc9000462f480
FS:  00005555638e9500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f39cffa6028 CR3: 0000000017f5f000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 perf_prepare_sample+0x798/0x1fb0 kernel/events/core.c:7554
 __perf_event_output kernel/events/core.c:7706 [inline]
 perf_event_output_forward+0x1b7/0x330 kernel/events/core.c:7726
 __perf_event_overflow+0x45e/0x640 kernel/events/core.c:9472
 perf_swevent_overflow kernel/events/core.c:9548 [inline]
 perf_swevent_event+0x4c5/0x550 kernel/events/core.c:9586
 perf_tp_event+0x35a/0xc80 kernel/events/core.c:10005
 perf_trace_run_bpf_submit+0xf7/0x1d0 kernel/events/core.c:9978
 perf_trace_preemptirq_template+0x2d1/0x3d0 include/trace/events/preemptirq.h:14
 trace_irq_enable_rcuidle+0xd5/0x140 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
RIP: 0010:rcu_read_unlock_special+0x84/0x540 kernel/rcu/tree_plugin.h:682
Code: f1 f1 f1 00 f2 f2 f2 49 89 04 17 66 41 c7 44 17 09 f3 f3 41 c6 44 17 0b f3 65 44 8b 25 6d 1a 8e 7e 41 f7 c4 00 00 f0 00 74 45 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 3a 00 00 00 00 66 42 c7 44 3a
RSP: 0000:ffffc9000462f8c0 EFLAGS: 00000206
RAX: bedc803ec8669f00 RBX: 1ffff920008c5f20 RCX: ffffffff816b145a
RDX: dffffc0000000000 RSI: ffffffff8b0c1d40 RDI: ffffffff8b5f6d80
RBP: ffffc9000462f998 R08: dffffc0000000000 R09: fffffbfff2256c4d
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8d333500
R13: ffff888073d0a218 R14: ffffc9000462f900 R15: 1ffff920008c5f1c
 __rcu_read_unlock+0x92/0x100 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 __folio_memcg_unlock+0xfd/0x120 mm/memcontrol.c:2148
 page_remove_rmap+0x819/0xed0 mm/rmap.c:1462
 wp_page_copy+0xe3b/0x18c0 mm/memory.c:3253
 handle_pte_fault mm/memory.c:5047 [inline]
 __handle_mm_fault mm/memory.c:5171 [inline]
 handle_mm_fault+0x2525/0x5340 mm/memory.c:5292
 do_user_addr_fault arch/x86/mm/fault.c:1340 [inline]
 handle_page_fault arch/x86/mm/fault.c:1431 [inline]
 exc_page_fault+0x26f/0x620 arch/x86/mm/fault.c:1487
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:608
RIP: 0033:0x7f39cfc5d139
Code: 83 c4 68 5b 5d 41 5c 41 5e c3 0f 1f 80 00 00 00 00 48 8b 44 24 18 48 8b 1c 24 48 8b 70 68 8b 78 08 48 8d 53 30 e8 27 5d ff ff <48> 89 83 88 00 00 00 e9 38 fe ff ff 0f 1f 00 8b 7c 24 14 48 8d 74
RSP: 002b:00007ffeefbe6fd0 EFLAGS: 00010202
RAX: 00000000000004f8 RBX: 00007f39cffa5fa0 RCX: 00007f39cfd8d169
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f39cfe0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f39cffa5fa0 R14: 00007f39cffa5fa0 R15: 0000000000000006
 </TASK>