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[Scott Moser <ssmoser2+ubuntu@xxxxxxxxx>]

** Also affects: linux (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: cloud-init
       Status: New => Invalid

** Changed in: cloud-init (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1778891

Title:
  KVM Instance booting from volume stacktraces

Status in cloud-init:
  Invalid
Status in cloud-init package in Ubuntu:
  Invalid
Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I've booted two instances from the same backing image (http://cloud-
  images.ubuntu.com/trusty/current/trusty-server-cloudimg-
  amd64-disk1.img), one using locally attached storage for the boot
  volume, one using a Cinder volume. The instance booted from cinder
  volume  shows a cloud-init trace in the console log, while the local
  instance works correctly.

  Instance booted from volume:

  Cloud-init v. 0.7.5 running 'init' at Wed, 27 Jun 2018 09:43:10 +0000. Up 15.61 seconds.
  ci-info: ++++++++++++++++++++++++++Net device info+++++++++++++++++++++++++++
  ci-info: +--------+------+--------------+---------------+-------------------+
  ci-info: | Device |  Up  |   Address    |      Mask     |     Hw-Address    |
  ci-info: +--------+------+--------------+---------------+-------------------+
  ci-info: |   lo   | True |  127.0.0.1   |   255.0.0.0   |         .         |
  ci-info: |  eth0  | True | 192.168.21.8 | 255.255.255.0 | fa:16:3e:aa:c3:54 |
  ci-info: +--------+------+--------------+---------------+-------------------+
  ci-info: +++++++++++++++++++++++++++++++++++Route info+++++++++++++++++++++++++++++++++++
  ci-info: +-------+-----------------+--------------+-----------------+-----------+-------+
  ci-info: | Route |   Destination   |   Gateway    |     Genmask     | Interface | Flags |
  ci-info: +-------+-----------------+--------------+-----------------+-----------+-------+
  ci-info: |   0   |     0.0.0.0     | 192.168.21.1 |     0.0.0.0     |    eth0   |   UG  |
  ci-info: |   1   | 169.254.169.254 | 192.168.21.1 | 255.255.255.255 |    eth0   |  UGH  |
  ci-info: |   2   |   192.168.21.0  |   0.0.0.0    |  255.255.255.0  |    eth0   |   U   |
  ci-info: +-------+-----------------+--------------+-----------------+-----------+-------+
  dmesg: write failed: Broken pipe
  Generating public/private rsa key pair.
  Your identification has been saved in /etc/ssh/ssh_host_rsa_key.
  Your public key has been saved in /etc/ssh/ssh_host_rsa_key.pub.
  The key fingerprint is:
  c7:fb:76:96:ae:aa:6e:73:b1:28:ea:38:40:fa:34:75 root@20180627093956
  The key's randomart image is:
  +--[ RSA 2048]----+
  |                 |
  |                 |
  |                 |
  | .  . E  .       |
  |o  . .  S o      |
  |o o      ...     |
  | + .     ..o   . |[   36.260523] general protection fault: 0000 [#1] SMP 
  [   36.260523] Modules linked in: dm_crypt kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel serio_raw aesni_intel aes_x86_64 glue_helper lrw gf128mul ablk_helper cryptd psmouse floppy
  [   36.260523] CPU: 0 PID: 1 Comm: init Not tainted 3.13.0-151-generic #201-Ubuntu
  [   36.260523] Hardware name: OpenStack Foundation OpenStack Nova, BIOS 1.10.2-1ubuntu1~cloud0 04/01/2014
  [   36.260523] task: ffff88007c088000 ti: ffff88007c086000 task.ti: ffff88007c086000
  [   36.260523] RIP: 0010:[<ffffffff8106091b>]  [<ffffffff8106091b>] switch_mm_irqs_off+0xbb/0x120
  [   36.260523] RSP: 0018:ffff88007c087ee0  EFLAGS: 00010046
  [   36.260523] RAX: 0000000000000001 RBX: ffff880037a54700 RCX: 0000000000000049
  [   36.260523] RDX: 0000000000000000 RSI: ffff880037a54700 RDI: ffff880037a54700
  [   36.260523] RBP: ffff88007c087f00 R08: 0000000000000000 R09: 0000000000000000
  [   36.260523] R10: 0000000000000001 R11: ffff88007b666780 R12: ffff8800378d6700
  [   36.260523] R13: 0000000000000000 R14: ffff880037653000 R15: ffff880037653000
  [   36.260523] FS:  00007f81d6e9a840(0000) GS:ffff88007fc00000(0000) knlGS:0000000000000000
  [   36.260523] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  [   36.260523] CR2: 00007ffcc8f0fec0 CR3: 0000000037924000 CR4: 0000000000360670
  [   36.260523] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  [   36.260523] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
  [   36.260523] Stack:
  [   36.260523]  ffff8800378d6700 ffff88007fc13b40 ffff880037a54700 0000000000000000
  [   36.260523]  ffff88007c087f60 ffffffff8173c613 ffff88007c088000 0000000000013b40
  [   36.260523]  ffff88007c087fd8 0000000000013b40 ffff88007c088000 00007ffcc8f10ae0
  [   36.260523] Call Trace:
  [   36.260523]  [<ffffffff8173c613>] __schedule+0x2b3/0x750
  [   36.260523]  [<ffffffff8173cf4e>] schedule_user+0x2e/0xa0
  [   36.260523]  [<ffffffff817498dc>] sysret_careful+0x14/0x1a
  [   36.260523] Code: 24 e0 02 00 00 75 28 5b 41 5c 41 5d 41 5e 5d c3 48 8b 05 a5 58 cb 00 48 c1 e8 33 a8 01 74 d7 31 d2 b8 01 00 00 00 b9 49 00 00 00 <0f> 30 eb c7 48 89 df e8 57 09 6d 00 eb ce 65 c7 04 25 88 33 01 
  [   36.260523] RIP  [<ffffffff8106091b>] switch_mm_irqs_off+0xbb/0x120
  [   36.260523]  RSP <ffff88007c087ee0>
  [   36.260523] ---[ end trace 122ffd09a2447ccd ]---

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