Your message dated Wed, 29 Apr 2020 09:19:11 +0000
with message-id <[email protected]>
and subject line Bug#958926: fixed in qemu 1:5.0-1
has caused the Debian Bug report #958926,
regarding qemu-kvm: QEMU KVM live migration crashes when the VM is in booting
state
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
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--
958926: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=958926
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: qemu-kvm
Version: 1:4.2-7
Severity: important
Dear Maintainer,
During a QEMU KVM live migration the sending process crashes if the VM is
currently in a booting state (and possibly also during a 'soft' reboot from
inside the VM). This has been fixed upstream:
https://github.com/qemu/qemu/commit/9b3a31c745b61758aaa5466a3a9fc0526d409188
There are also bug reports available for this problem:
https://bugzilla.redhat.com/show_bug.cgi?id=1771032
https://bugzilla.redhat.com/show_bug.cgi?id=1772774
I stumbled over this problem while testing latest builds of Ganeti
(https://github.com/ganeti/ganeti) on Debian Bullseye and Ubuntu Focal Fossa
which both ship qemu 4.2. The Ganeti QA suite runs a series of tests against a
cluster and issues a VM failover (QEMU shutdown on Node A and start on Node B)
directly followed by a live migration (QEMU live migration from Node B to Node
A). The sending QEMU process dies with this error message:
qemu-system-x86_64: /build/qemu-oknQD6/qemu-4.2/accel/kvm/kvm-all.c:653:
kvm_log_clear_one_slot: Assertion `mem->dirty_bmap' failed.
If you add 'sleep 2' between the reboot and the live migration instructions
everything works fine, because the QEMU VM has left the booting state by the
time the live migration starts. From a Ganeti point of view, this only happens
when using the "sharedfile" storage backend. When you use e.g. DRBD, the Ganeti
commands take a bit longer to finish which gives the VM enough time to boot up.
For further reference, the same issue has been opened (and fixed) for the
respective Ubuntu package:
https://bugs.launchpad.net/qemu-kvm/+bug/1872107
-- System Information:
Debian Release: bullseye/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Kernel: Linux 5.5.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=C.UTF-8 (charmap=locale: Cannot set
LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
UTF-8), LANGUAGE=en_US.UTF-8 (charmap=locale: Cannot set LC_MESSAGES to default
locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages qemu-kvm depends on:
ii qemu-system-x86 1:4.2-7
qemu-kvm recommends no packages.
qemu-kvm suggests no packages.
-- debconf information excluded
--- End Message ---
--- Begin Message ---
Source: qemu
Source-Version: 1:5.0-1
Done: Michael Tokarev <[email protected]>
We believe that the bug you reported is fixed in the latest version of
qemu, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Michael Tokarev <[email protected]> (supplier of updated qemu package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Format: 1.8
Date: Wed, 29 Apr 2020 12:00:12 +0300
Source: qemu
Architecture: source
Version: 1:5.0-1
Distribution: unstable
Urgency: medium
Maintainer: Debian QEMU Team <[email protected]>
Changed-By: Michael Tokarev <[email protected]>
Closes: 958926
Changes:
qemu (1:5.0-1) unstable; urgency=medium
.
* new upstream release (5.0)
Closes: #958926
Closes: CVE-2020-11869
* refresh patches, remove patches applied upstream
* do not mention openhackware, it is not used anymore
* do not disable bluez (support removed)
* new system arch "rx"
* dont install qemu-doc.* for now,
but install virtiofsd & qemu-storage-daemon
* add shared-lib-without-dependency-information tag
to qemu-user-static.lintian-overrides
* add html docs to qemu-system-data (to /usr/share/doc/qemu-system-common)
* do not install usr/share/doc/qemu/specs & usr/share/doc/qemu/tools
* install qemu-user html docs for qemu-user & qemu-user-static
* build hppa-firmware.img from roms/seabios-hppa
(and Build-Depeds-Indep on gcc-hppa-linux-gnu)
* enable liburing on linux (build-depend on liburing-dev)
* add upstream signing-key.asc (Michael Roth <[email protected]>)
* build opensbi firmware
(for riscv64 only, riscv32 is possible with compiler flags)
* add source-level lintian-overrides for binaries-without-sources
(lintian can't find sources for a few firmware images which are in roms/)
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Files:
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--- End Message ---
