XFS (loop1): bad version XFS (loop1): SB validate failed with error -22. invalid inflight: 1 state 4 cwnd 10 mss 1428 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 30135 at net/ipv4/tcp_output.c:2507 tcp_send_loss_probe.cold+0x83/0xa2 net/ipv4/tcp_output.c:2507 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 30135 Comm: syz-executor.0 Not tainted 4.14.144 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x138/0x197 lib/dump_stack.c:53 panic+0x1f2/0x426 kernel/panic.c:182 kobject: 'loop5' (ffff8880a4a94b20): kobject_uevent_env kobject: 'loop5' (ffff8880a4a94b20): fill_kobj_path: path = '/devices/virtual/block/loop5' __warn.cold+0x2f/0x36 kernel/panic.c:546 report_bug+0x216/0x254 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:177 [inline] fixup_bug arch/x86/kernel/traps.c:172 [inline] do_error_trap+0x1bb/0x310 arch/x86/kernel/traps.c:295 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:963 RIP: 0010:tcp_send_loss_probe.cold+0x83/0xa2 net/ipv4/tcp_output.c:2507 RSP: 0018:ffff8880aef07cb8 EFLAGS: 00010282 RAX: 000000000000002c RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000100 RSI: ffffffff866d10e0 RDI: ffffed1015de0f8d RBP: ffff8880aef07ce8 R08: 000000000000002c R09: ffff888099144f30 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888070982000 R13: 0000000000000001 R14: 0000000000000594 R15: 000000000000000a tcp_write_timer_handler+0x4a8/0x7e0 net/ipv4/tcp_timer.c:575 tcp_write_timer+0xd8/0x180 net/ipv4/tcp_timer.c:597 call_timer_fn+0x161/0x670 kernel/time/timer.c:1279 expire_timers kernel/time/timer.c:1318 [inline] __run_timers kernel/time/timer.c:1634 [inline] __run_timers kernel/time/timer.c:1602 [inline] run_timer_softirq+0x5b4/0x1570 kernel/time/timer.c:1647 __do_softirq+0x244/0x9a0 kernel/softirq.c:288 invoke_softirq kernel/softirq.c:368 [inline] irq_exit+0x160/0x1b0 kernel/softirq.c:409 exiting_irq arch/x86/include/asm/apic.h:648 [inline] smp_apic_timer_interrupt+0x146/0x5e0 arch/x86/kernel/apic/apic.c:1102 apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792 RIP: 0010:__sanitizer_cov_trace_pc+0x45/0x60 kernel/kcov.c:88 RSP: 0018:ffff8880872d7780 EFLAGS: 00000216 ORIG_RAX: ffffffffffffff10 RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc9001514f000 RDX: 0000000000040000 RSI: ffffffff82d86cdc RDI: ffffffff869d2e80 RBP: ffff8880872d7780 R08: 0000000000000000 R09: ffff888099144ee0 R10: ffff888099144ec0 R11: ffffffff854f8970 R12: 0000000000000001 R13: ffffffff869d2e40 R14: ffffffff869d2e80 R15: ffff8880872d7d40 check_preemption_disabled+0x3c/0x250 lib/smp_processor_id.c:52 debug_smp_processor_id+0x1c/0x20 lib/smp_processor_id.c:57 rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:360 [inline] rcu_is_watching+0x15/0xb0 kernel/rcu/tree.c:1130 rcu_read_unlock include/linux/rcupdate.h:681 [inline] txopt_get include/net/ipv6.h:274 [inline] udpv6_sendmsg+0x20ae/0x2560 net/ipv6/udp.c:1295 inet_sendmsg+0x122/0x500 net/ipv4/af_inet.c:762 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 ___sys_sendmsg+0x349/0x840 net/socket.c:2062 __sys_sendmmsg+0x152/0x3a0 net/socket.c:2152 SYSC_sendmmsg net/socket.c:2183 [inline] SyS_sendmmsg+0x35/0x60 net/socket.c:2178 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x4598e9 RSP: 002b:00007fc3b6c91c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00000000004598e9 RDX: 0000000000000170 RSI: 00000000200092c0 RDI: 0000000000000004 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc3b6c926d4 R13: 00000000004c70a7 R14: 00000000004dc768 R15: 00000000ffffffff Kernel Offset: disabled Rebooting in 86400 seconds..