libceph: mon0 [d::]:6789 connect error
libceph: connect [d::]:6789 error -101
libceph: mon0 [d::]:6789 connect error
libceph: connect [d::]:6789 error -101
libceph: mon0 [d::]:6789 connect error
WARNING: CPU: 0 PID: 6052 at net/ceph/messenger.c:3101 clear_standby+0x12f/0x160 net/ceph/messenger.c:3101
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 6052 Comm: syz-executor509 Not tainted 4.19.0-rc6-next-20181004+ #87
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+0x1d3/0x2c4 lib/dump_stack.c:113
 panic+0x238/0x4e7 kernel/panic.c:184
 __warn.cold.8+0x163/0x1ba kernel/panic.c:536
 report_bug+0x254/0x2d0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271
 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:290
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:969
RIP: 0010:clear_standby+0x12f/0x160 net/ceph/messenger.c:3101
Code: de e8 85 e4 e8 f9 48 85 db 0f 84 39 ff ff ff e8 47 e3 e8 f9 0f 0b e9 2d ff ff ff e8 4b d5 2c fa e9 67 ff ff ff e8 31 e3 e8 f9 <0f> 0b eb a5 e8 58 d5 2c fa e9 f6 fe ff ff 4c 89 ef e8 4b d5 2c fa
RSP: 0018:ffff8801d48df700 EFLAGS: 00010293
RAX: ffff8801d8f7a080 RBX: ffff8801d5a44528 RCX: ffffffff87949783
RDX: 0000000000000000 RSI: ffffffff879497df RDI: 0000000000000007
RBP: ffff8801d48df718 R08: ffff8801d8f7a080 R09: ffffed003ab488d5
R10: ffff8801d48df718 R11: ffff8801d5a446af R12: 0000000000000001
R13: ffff8801d5a44660 R14: ffff8801d596db10 R15: ffff8801d48df7e8
 ceph_con_send+0x460/0x600 net/ceph/messenger.c:3136
 __send_prepared_auth_request+0x155/0x1b0 net/ceph/mon_client.c:111
 __open_session+0x3cd/0x550 net/ceph/mon_client.c:199
 ceph_monc_open_session+0x193/0x350 net/ceph/mon_client.c:448
 __ceph_open_session+0xe2/0x810 net/ceph/ceph_common.c:705
 ceph_real_mount fs/ceph/super.c:900 [inline]
 ceph_mount+0x11c5/0x1b30 fs/ceph/super.c:1085
 legacy_get_tree+0x131/0x460 fs/fs_context.c:718
 vfs_get_tree+0x1cb/0x5c0 fs/super.c:1795
 do_new_mount fs/namespace.c:2648 [inline]
 do_mount+0x70c/0x1d90 fs/namespace.c:2974
 ksys_mount+0x12d/0x140 fs/namespace.c:3190
 __do_sys_mount fs/namespace.c:3204 [inline]
 __se_sys_mount fs/namespace.c:3201 [inline]
 __x64_sys_mount+0xbe/0x150 fs/namespace.c:3201
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x446249
Code: e8 2c b3 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 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 0f 83 2b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ff72de68da8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00000000006dac28 RCX: 0000000000446249
RDX: 0000000020000100 RSI: 0000000020000080 RDI: 0000000020000040
RBP: 00000000006dac20 R08: 0000000020000140 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dac2c
R13: 0030656c69662f2e R14: 6c2f3a5d3a3a645b R15: 00000000006dad2c
Kernel Offset: disabled
Rebooting in 86400 seconds..