rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2690 jiffies s: 397 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 UID: 0 PID: 5232 Comm: syz-executor381 Not tainted 6.12.0-rc2-syzkaller-00527-gc531f2269a53 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:check_kcov_mode kernel/kcov.c:183 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:246 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x18/0x90 kernel/kcov.c:321
Code: 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 4c 8b 04 24 65 48 8b 0c 25 c0 d7 03 00 65 8b 05 80 eb 6e 7e <25> 00 01 ff 00 74 10 3d 00 01 00 00 75 57 83 b9 1c 16 00 00 00 74
RSP: 0018:ffffc90003c57788 EFLAGS: 00000246
RAX: 0000000000000201 RBX: 0000000000000003 RCX: ffff88802b26bc00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8bc1a4b6 R09: 0000000000000000
R10: ffffc90003c57940 R11: fffff5200078af2b R12: ffffc90003c57920
R13: 0000000000000003 R14: ffffc90003c57938 R15: 1ffff9200078af27
FS:  000055556dd2b380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4ab599f0d0 CR3: 000000007d002000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 xas_start+0x76/0x7b0 lib/xarray.c:187
 xas_load+0x2c/0x5c0 lib/xarray.c:238
 xas_store+0xa7/0x1890 lib/xarray.c:790
 __xa_erase+0x135/0x220 lib/xarray.c:1511
 sock_devmem_dontneed+0x37b/0x740 net/core/sock.c:1087
 sk_setsockopt+0x73c/0x33b0 net/core/sock.c:1278
 do_sock_setsockopt+0x2fb/0x720 net/socket.c:2330
 __sys_setsockopt+0x1a2/0x250 net/socket.c:2357
 __do_sys_setsockopt net/socket.c:2366 [inline]
 __se_sys_setsockopt net/socket.c:2363 [inline]
 __x64_sys_setsockopt+0xb5/0xd0 net/socket.c:2363
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4ab5928a39
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff917ce128 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4ab5928a39
RDX: 0000000000000050 RSI: 0000000000000001 RDI: 0000000000000004
RBP: 00007f4ab599b5f0 R08: 0000000000000010 R09: 0000000000000006
R10: 0000000020000000 R11: 0000000000000246 R12: 0000000000000001
R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
 </TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.158 msecs