IP addr Mac Addr Kernel Reboots
13.64.67.186 00:0d:3a:3a:dd:04 5.0.0-1016-azure 50
104.42.152.115 00:0d:3a:35:b1:e6 5.0.0-1016-azure 50
65.52.121.205 00:0d:3a:3b:0f:52 5.0.0-1016-azure 50
13.88.28.42 00:0d:3a:3b:c7:da 5.0.0-1016-azure 50
40.118.165.237 00:0d:3a:3b:c2:4e 5.0.0-1016-azure 50
40.118.190.105 00:0d:3a:36:c6:d7 5.0.0-1016-azure 50
40.78.90.95 00:0d:3a:37:c0:d9 5.0.0-1016-azure 50
13.83.84.150 00:0d:3a:37:c0:15 5.0.0-1016-azure 50
104.42.74.129 00:0d:3a:36:c2:3e 5.0.0-1016-azure 50
40.85.154.162 00:0d:3a:37:cc:dd 5.0.0-1016-azure 50
40.78.43.4 00:0d:3a:37:c5:07 5.0.0-1016-azure 50
13.93.142.147 00:0d:3a:37:c8:5f 5.0.0-1016-azure 50
40.78.44.229 00:0d:3a:3b:e4:80 5.0.0-1016-azure 50
40.118.189.62 00:0d:3a:3b:e8:8e 5.0.0-1016-azure 50
40.78.85.10 00:0d:3a:3b:e6:37 5.0.0-1016-azure 50
40.78.13.203 00:0d:3a:3a:c2:b0 5.0.0-1016-azure 50
104.42.112.81 00:0d:3a:30:71:fb 5.0.0-1016-azure 50
40.80.156.132 00:0d:3a:30:2f:7c 5.0.0-1016-azure 50
13.64.173.138 00:0d:3a:30:73:b2 5.0.0-1016-azure 50
13.64.189.105 00:0d:3a:30:a4:6f 5.0.0-1016-azure 50
13.64.189.127 00:0d:3a:30:a4:1f 5.0.0-1016-azure 50
104.45.237.232 00:0d:3a:32:1e:3b 5.0.0-1016-azure 50
104.42.233.11 00:0d:3a:32:34:68 5.0.0-1016-azure 50
104.42.233.20 00:0d:3a:34:ed:42 5.0.0-1016-azure 50
23.101.202.206 00:0d:3a:32:32:b0 5.0.0-1016-azure 50
104.42.233.18 00:0d:3a:34:ee:ba 5.0.0-1016-azure 50
104.42.233.151 00:0d:3a:34:e9:0d 5.0.0-1016-azure 50
104.40.51.248 00:0d:3a:32:27:c6 5.0.0-1016-azure 50
104.40.69.158 00:0d:3a:34:f1:5d 5.0.0-1016-azure 50
52.160.41.95 00:0d:3a:35:9f:c8 5.0.0-1016-azure 50
104.42.158.74 00:0d:3a:34:c7:91 5.0.0-1016-azure 50
IP addr Mac Addr Kernel Reboots
40.83.145.235 00:0d:3a:5a:01:f9 5.0.0-1016-azure 250
104.210.50.91 00:0d:3a:35:b2:48 5.0.0-1016-azure 250
13.88.186.166 00:0d:3a:5a:0b:86 5.0.0-1016-azure 250
40.118.185.194 00:0d:3a:35:b9:59 5.0.0-1016-azure 250
104.42.37.175 00:0d:3a:5a:06:ff 5.0.0-1016-azure 250
13.88.186.188 00:0d:3a:5a:05:da 5.0.0-1016-azure 250
104.210.48.49 00:0d:3a:35:b8:a7 5.0.0-1016-azure 250
104.210.50.215 00:0d:3a:35:ba:13 5.0.0-1016-azure 250
40.78.52.50 00:0d:3a:35:b6:50 5.0.0-1016-azure 250
40.118.186.25 00:0d:3a:35:b5:93 5.0.0-1016-azure 250
13.93.233.26 00:0d:3a:37:06:7e 5.0.0-1016-azure 156 crashed
13.93.136.144 00:0d:3a:37:0e:2f 5.0.0-1016-azure 250
40.118.241.192 00:0d:3a:32:c4:5d 5.0.0-1016-azure 250
40.83.160.52 00:0d:3a:37:47:48 5.0.0-1016-azure 250
104.42.9.61 00:0d:3a:36:d3:a0 5.0.0-1016-azure 250
IP addr Mac Addr Kernel Reboots
104.40.1.50 00:0d:3a:30:8d:ae 5.0.0-1016-azure 500
104.40.3.205 00:0d:3a:30:81:d5 5.0.0-1016-azure 500
104.40.9.37 00:0d:3a:30:86:bb 5.0.0-1016-azure 500
104.40.0.242 00:0d:3a:30:88:6b 5.0.0-1016-azure 500
104.40.12.184 00:0d:3a:30:8e:e0 5.0.0-1016-azure 500
137.135.46.72 00:0d:3a:30:ac:df 5.0.0-1016-azure 500
137.135.47.169 00:0d:3a:30:9a:3f 5.0.0-1016-azure 500
104.40.10.226 00:0d:3a:30:2d:fb 5.0.0-1016-azure 500
104.40.10.244 00:0d:3a:30:8e:12 5.0.0-1016-azure 500
104.40.15.160 00:0d:3a:30:87:4d 5.0.0-1016-azure 500
40.112.132.2 00:0d:3a:59:b5:80 5.0.0-1016-azure 500
13.64.97.59 00:0d:3a:59:b1:e7 5.0.0-1016-azure 500
40.78.19.224 00:0d:3a:5a:bd:99 5.0.0-1016-azure 500
13.64.88.51 00:0d:3a:37:30:07 5.0.0-1016-azure 500
40.118.225.110 00:0d:3a:59:b1:8f 5.0.0-1016-azure 500
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-azure in Ubuntu.
https://bugs.launchpad.net/bugs/1822118
Title:
Kernel Panic while rebooting cloud instance
Status in linux-azure package in Ubuntu:
Incomplete
Status in systemd package in Ubuntu:
New
Bug description:
Description: In the event a particular Azure cloud instance is
rebooted it's possible that it may never recover and the instance will
break indefinitely.
In My case, it was a kernel panic. See specifics below..
Series: Disco
Instance Size: Basic_A3
Region: (Default) US-WEST-2
Kernel Version: 4.18.0-1013-azure #13-Ubuntu SMP Thu Feb 28 22:54:16 UTC 2019
x86_64 x86_64 x86_64 GNU/Linux
I had a simple script to reboot an instance (X) amount of times, I chose 50,
so the machine would power cycle by issuing a "reboot" from the terminal prompt
just as a user would. Once the machine came up, it captured dmesg and other
bits then rebooted again until it reached 50.
After the 4th attempt, my script timed out, I took a look at the
instance console log and the following displayed on the console.
[ OK ] Reached target Reboot.
/shutdown: error while loading shared libra[ 89.498980] Kernel panic - not
syncing: Attempted to kill init! exitcode=0x00007f00
[ 89.498980]
[ 89.500042] CPU: 0 PID: 1 Comm: shutdown Not tainted 4.18.0-1013-azure
#13-Ubuntu
[ 89.508026] Hardware name: Microsoft Corporation Virtual Machine/Virtual
Machine, BIOS 090007 06/02/2017
[ 89.508026] Call Trace:
[ 89.508026] dump_stack+0x63/0x8a
[ 89.508026] panic+0xe7/0x247
[ 89.508026] do_exit.cold.23+0x26/0x75
[ 89.508026] do_group_exit+0x43/0xb0
[ 89.508026] __x64_sys_exit_group+0x18/0x20
[ 89.508026] do_syscall_64+0x5a/0x110
[ 89.508026] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 89.508026] RIP: 0033:0x7f7bf0154d86
[ 89.508026] Code: Bad RIP value.
[ 89.508026] RSP: 002b:00007ffd6be693b8 EFLAGS: 00000206 ORIG_RAX:
00000000000000e7
[ 89.508026] RAX: ffffffffffffffda RBX: 00007f7bf015e420 RCX:
00007f7bf0154d86
[ 89.508026] RDX: 000000000000007f RSI: 000000000000003c RDI:
000000000000007f
[ 89.508026] RBP: 00007f7bef9449c0 R08: 00000000000000e7 R09:
00000000ffffffff
[ 89.508026] R10: 00007ffd6be6974c R11: 0000000000000206 R12:
0000000000000018
[ 89.508026] R13: 00007f7bef944ac8 R14: 00007f7bef944a00 R15:
0000000000000000
[ 89.508026] Kernel Offset: 0x16000000 from 0xffffffff81000000 (relocation
range: 0xffffffff80000000-0xffffffffbfffffff)
[ 89.508026] ---[ end Kernel panic - not syncing: Attempted to kill init!
exitcode=0x00007f00
[ 89.508026] ]---
this only occurred once in my testing.
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