WARNING in reconnect

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.19	WARNING in reconnect_path				1	1771d	1771d	0/1	auto-closed as invalid on 2019/10/25 08:44
linux-4.14	WARNING in reconnect_path	C	done	done	1	1562d	1622d	1/1	fixed on 2020/02/16 09:59
upstream	WARNING in reconnect_path nfs				6	2107d	2199d	0/26	auto-closed as invalid on 2019/02/22 10:34

RAX: ffffffffffffffda RBX: 00007f83ecd01c90 RCX: 000000000045a639 RDX: 0000000000000000 RSI: 0000000020000000 RDI: ffffffffffffff9c RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f83ecd026d4 R13: 00000000004c72dd R14: 00000000004dccf0 R15: 0000000000000005 WARNING: CPU: 0 PID: 5697 at fs/exportfs/expfs.c:96 clear_disconnected fs/exportfs/expfs.c:96 [inline] WARNING: CPU: 0 PID: 5697 at fs/exportfs/expfs.c:96 reconnect_path+0x524/0x6c0 fs/exportfs/expfs.c:232 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 5697 Comm: syz-executor.0 Not tainted 4.19.84 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 panic+0x26a/0x50e kernel/panic.c:186 __warn.cold+0x20/0x53 kernel/panic.c:541 report_bug+0x263/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x204/0x360 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1037 RIP: 0010:clear_disconnected fs/exportfs/expfs.c:96 [inline] RIP: 0010:reconnect_path+0x524/0x6c0 fs/exportfs/expfs.c:232 Code: 22 43 8d ff 48 8b 5d c8 e9 24 fc ff ff e8 44 87 47 ff 48 8b 7d c8 e8 0b 43 8d ff e8 36 87 47 ff e9 21 fe ff ff e8 2c 87 47 ff <0f> 0b e9 b4 fe ff ff e8 20 87 47 ff 48 8b 55 c0 48 b8 00 00 00 00 RSP: 0018:ffff8880548afbd8 EFLAGS: 00010246 RAX: 0000000000040000 RBX: 0000000000000020 RCX: ffffc90005e6f000 RDX: 0000000000040000 RSI: ffffffff82239564 RDI: ffff88804ea390c0 RBP: ffff8880548afc28 R08: ffff8880a87bc340 R09: 0000000000000000 R10: ffffed1015d04732 R11: ffff8880ae823993 R12: ffff88804ea39080 R13: dffffc0000000000 R14: ffff88804ea39080 R15: ffff888099022220 exportfs_decode_fh+0x4a8/0x6ee fs/exportfs/expfs.c:457 do_handle_to_path fs/fhandle.c:152 [inline] handle_to_path fs/fhandle.c:207 [inline] do_handle_open+0x332/0x6e0 fs/fhandle.c:223 __do_sys_open_by_handle_at fs/fhandle.c:265 [inline] __se_sys_open_by_handle_at fs/fhandle.c:256 [inline] __x64_sys_open_by_handle_at+0x76/0xb0 fs/fhandle.c:256 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45a639 Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f83ecd01c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000130 RAX: ffffffffffffffda RBX: 00007f83ecd01c90 RCX: 000000000045a639 RDX: 0000000000000000 RSI: 0000000020000000 RDI: ffffffffffffff9c RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f83ecd026d4 R13: 00000000004c72dd R14: 00000000004dccf0 R15: 0000000000000005 Kernel Offset: disabled Rebooting in 86400 seconds..