9pnet: Could not find request transport: f watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor.3:13092] Modules linked in: irq event stamp: 127386 hardirqs last enabled at (127385): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (127386): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (127352): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (127347): [] irq_exit_rcu+0x93/0xc0 CPU: 0 PID: 13092 Comm: syz-executor.3 Not tainted 6.4.0-rc6-next-20230613 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__sanitizer_cov_trace_pc+0x3b/0x70 Code: 81 e1 00 01 00 00 65 48 8b 14 25 00 8b 03 00 a9 00 01 ff 00 74 0e 85 c9 74 35 8b 82 9c 14 00 00 85 c0 74 2b 8b 82 78 14 00 00 <83> f8 02 75 20 48 8b 8a 80 14 00 00 8b 92 7c 14 00 00 48 8b 01 48 RSP: 0018:ffff88803c8f7320 EFLAGS: 00000246 RAX: 0000000000000002 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff88803b4e0000 RSI: ffffffff83c33ac1 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001 R13: dffffc0000000000 R14: ffff88803bdf9a00 R15: 0000000000000001 FS: 00007f9c0f583700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5913798998 CR3: 000000003ad80000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __ip6_append_data.isra.0+0xb11/0x4560 ip6_append_data+0x1d4/0x530 rawv6_sendmsg+0x156e/0x3dc0 inet_sendmsg+0x121/0x150 sock_sendmsg+0x19b/0x200 splice_to_socket+0x949/0xe10 direct_splice_actor+0x119/0x180 splice_direct_to_actor+0x349/0x9d0 do_splice_direct+0x1bb/0x290 do_sendfile+0xb4b/0x12f0 __x64_sys_sendfile64+0x1d5/0x210 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7f9c1202eb19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f9c0f583188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f9c12142020 RCX: 00007f9c1202eb19 RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000007 RBP: 00007f9c12088f6d R08: 0000000000000000 R09: 0000000000000000 R10: 000000000001a000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffd6ac5c3f R14: 00007f9c0f583300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0xf/0x20 ---------------- Code disassembly (best guess): 0: 81 e1 00 01 00 00 and $0x100,%ecx 6: 65 48 8b 14 25 00 8b mov %gs:0x38b00,%rdx d: 03 00 f: a9 00 01 ff 00 test $0xff0100,%eax 14: 74 0e je 0x24 16: 85 c9 test %ecx,%ecx 18: 74 35 je 0x4f 1a: 8b 82 9c 14 00 00 mov 0x149c(%rdx),%eax 20: 85 c0 test %eax,%eax 22: 74 2b je 0x4f 24: 8b 82 78 14 00 00 mov 0x1478(%rdx),%eax * 2a: 83 f8 02 cmp $0x2,%eax <-- trapping instruction 2d: 75 20 jne 0x4f 2f: 48 8b 8a 80 14 00 00 mov 0x1480(%rdx),%rcx 36: 8b 92 7c 14 00 00 mov 0x147c(%rdx),%edx 3c: 48 8b 01 mov (%rcx),%rax 3f: 48 rex.W