[Pkg-xen-devel] Bug#820154: 4.4.1-9+deb8u4: impossible to 'lv migrate' with latest stable version

[Manuel Lanctot]

Package: xen-utils-4.4
Version: 4.4.1-9+deb8u4
Severity: important

Dear Maintainer,

   * What led up to the situation?

Upgrading to Debian 8.4. 

   * What exactly did you do (or not do) that was effective (or
     ineffective)?

Doing a live migration to a host running Xen 4.4.1-9+deb8u4, 
from a host running 4.4.1-9+deb8u3 fails every time.

Doing a live migration to a host running Xen 4.4.1-9+deb8u3, 
from a host running 4.4.1-9+deb8u4 works every time.

   * What was the outcome of this action?

A migration to a host with 4.4.1-9+deb8u4 results in this:

~ # xl migrate app01 host01
migration target: Ready to receive domain.
Saving to migration stream new xl format (info 0x0/0x0/1076)
Loading new save file <incoming migration stream> (new xl fmt info 0x0/0x0/1076)
 Savefile contains xl domain config
xc: progress: Reloading memory pages: 53248/1048576    5%
xc: progress: Reloading memory pages: 105472/1048576   10%
<snip>
xc: progress: Reloading memory pages: 996352/1048576   95%
xc: progress: Reloading memory pages: 1048810/1048576  100%
migration target: Transfer complete, requesting permission to start domain.
migration receiver stream contained unexpected data instead of ready message
(command run was: exec ssh host01 xl migrate-receive )
libxl: error: libxl_utils.c:396:libxl_read_exactly: file/stream truncated reading GO message from migration stream
migration target: Failure, destroying our copy.
migration target: Cleanup OK, granting sender permission to resume.
Migration failed, resuming at sender.

   * What outcome did you expect instead?

Doing a migration to a host that is still on Debian 8.3 (Xen 4.4.1-9+deb8u3):

~ # xl migrate app01 host02
migration target: Ready to receive domain.
Saving to migration stream new xl format (info 0x0/0x0/1076)
Loading new save file <incoming migration stream> (new xl fmt info 0x0/0x0/1076)
 Savefile contains xl domain config
xc: progress: Reloading memory pages: 53248/1048576    5%
xc: progress: Reloading memory pages: 105472/1048576   10%
<snip>
xc: progress: Reloading memory pages: 996352/1048576   95%
xc: progress: Reloading memory pages: 1048919/1048576  100%
migration target: Transfer complete, requesting permission to start domain.
migration sender: Target has acknowledged transfer.
migration sender: Giving target permission to start.
migration target: Got permission, starting domain.
migration target: Domain started successsfully.
migration sender: Target reports successful startup.
Migration successful.


-- System Information:
Debian Release: 8.4
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.16.0-4-amd64 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages xen-utils-4.4 depends on:
ii  e2fslibs          1.42.12-1.1
ii  libc6             2.19-18+deb8u4
ii  libncurses5       5.9+20140913-1+b1
ii  libtinfo5         5.9+20140913-1+b1
ii  libxen-4.4        4.4.1-9+deb8u4
ii  libxenstore3.0    4.4.1-9+deb8u4
ii  libyajl2          2.1.0-2
ii  python2.7         2.7.9-2
pn  python:any        <none>
ii  xen-utils-common  4.4.1-9+deb8u4

Versions of packages xen-utils-4.4 recommends:
ii  bridge-utils                                   1.5-9
ii  grub-xen-host                                  2.02~beta2-22+deb8u1
ii  qemu-system-x86                                1:2.1+dfsg-12+deb8u5a
ii  xen-hypervisor-4.4-amd64 [xen-hypervisor-4.4]  4.4.1-9+deb8u4

xen-utils-4.4 suggests no packages.

-- no debconf information