Your message dated Sat, 20 Jan 2018 17:06:15 +0000
with message-id <e1ecwat-000at3...@fasolo.debian.org>
and subject line Bug#881293: fixed in libvirt 4.0.0-1
has caused the Debian Bug report #881293,
regarding libvirtd crashes when starting a vm with IDE cdrom
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.

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-- 
881293: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=881293
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems
--- Begin Message ---
Package: libvirt
Version: 3.10
Severity: grave

With libvirt version 3.10 I cannot start a VM. Reverting to 3.0
(Debian/stable) all is fine. This was initially found in GNOME-Boxes
but I have been able to reproduce on the command line using virsh.

Note also that I had the same issue with 3.9.

On one console:

$ LIBVIRT_DEBUG=1 gdb /usr/sbin/libvirtd

On a second console, I tried to start the VM:

$ virsh start boxes-winxp

Then I got this exception from libvirtd:

Thread 5 "libvirtd" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7febad4a5700 (LWP 7867)]
0x00007feb94b109c8 in virStorageFileReportBrokenChain ()
   from /usr/lib/libvirt/connection-driver/libvirt_driver_storage.so
(gdb) bt
#0  0x00007feb94b109c8 in virStorageFileReportBrokenChain ()
   from /usr/lib/libvirt/connection-driver/libvirt_driver_storage.so
#1  0x00007feb7d266da3 in qemuDomainDetermineDiskChain ()
   from /usr/lib/libvirt/connection-driver/libvirt_driver_qemu.so
#2  0x00007feb7d28eec2 in qemuProcessPrepareHost ()
   from /usr/lib/libvirt/connection-driver/libvirt_driver_qemu.so
#3  0x00007feb7d294b71 in qemuProcessStart ()
   from /usr/lib/libvirt/connection-driver/libvirt_driver_qemu.so
#4  0x00007feb7d2f5201 in ?? ()
   from /usr/lib/libvirt/connection-driver/libvirt_driver_qemu.so
#5  0x00007feb7d2f58e6 in ?? ()
   from /usr/lib/libvirt/connection-driver/libvirt_driver_qemu.so
#6  0x00007febb9e5e077 in virDomainCreate (domain=0x7feb980008c0)
    at ../../../src/libvirt-domain.c:6531
#7  0x000056190ba2ed9c in ?? ()
#8  0x00007febb9ec697c in virNetServerProgramDispatchCall (msg=0x56190d9e7590, 
    client=0x56190d9e6fb0, server=0x56190d9d00f0, prog=0x56190d9e4f40)
    at ../../../src/rpc/virnetserverprogram.c:437
#9  virNetServerProgramDispatch (prog=0x56190d9e4f40, server=0x56190d9d00f0, 
    client=0x56190d9e6fb0, msg=0x56190d9e7590)
    at ../../../src/rpc/virnetserverprogram.c:307
#10 0x000056190ba3e988 in ?? ()
#11 0x00007febb9da1c01 in virThreadPoolWorker (
    opaque=opaque@entry=0x56190d9ce9f0)
    at ../../../src/util/virthreadpool.c:167
#12 0x00007febb9da0f78 in virThreadHelper (data=<optimized out>)
    at ../../../src/util/virthread.c:206
#13 0x00007febb68b0519 in start_thread (arg=0x7febad4a5700)
    at pthread_create.c:456
#14 0x00007febb65f2a5f in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97
(gdb) 

I noticed that running with 3.0 I had a message saying that /dev/sr0 is
not accessible. And indeed I do not have a CDROM on this machine. The
.xml were migrated from a machine with a CDROM to this new one.

Removing:

    <disk type='block' device='cdrom'>
      <driver name='qemu' type='raw'/>
      <source dev='/dev/sr0' startupPolicy='optional'/>
      <target dev='hdc' bus='ide'/>
      <readonly/>
      <address type='drive' controller='0' bus='1' target='0' unit='0'/>
    </disk>

Seems to fix the issue. Yet, libvirt should not crash on this. And the
backtrace makes sense with this fix BTW.

Please let me know if you need additional information.

Thanks,

-- 
  Pascal Obry /  Magny Les Hameaux (78)

  The best way to travel is by means of imagination

  http://www.obry.net

  gpg --keyserver keys.gnupg.net --recv-key F949BD3B

--- End Message ---
--- Begin Message ---
Source: libvirt
Source-Version: 4.0.0-1

We believe that the bug you reported is fixed in the latest version of
libvirt, 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 881...@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Guido Günther <a...@sigxcpu.org> (supplier of updated libvirt 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 ftpmas...@ftp-master.debian.org)


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

Format: 1.8
Date: Sat, 20 Jan 2018 16:31:11 +0100
Source: libvirt
Binary: libvirt-clients libvirt-daemon libvirt-daemon-driver-storage-gluster 
libvirt-daemon-driver-storage-rbd libvirt-daemon-driver-storage-sheepdog 
libvirt-daemon-driver-storage-zfs libvirt-daemon-system libvirt0 libvirt-doc 
libvirt-dev libvirt-sanlock libnss-libvirt libvirt-wireshark
Architecture: source
Version: 4.0.0-1
Distribution: unstable
Urgency: medium
Maintainer: Debian Libvirt Maintainers 
<pkg-libvirt-maintain...@lists.alioth.debian.org>
Changed-By: Guido Günther <a...@sigxcpu.org>
Description:
 libnss-libvirt - nss plugin providing IP add ress resolution for virtual 
machines
 libvirt-clients - Programs for the libvirt library
 libvirt-daemon - Virtualization daemon
 libvirt-daemon-driver-storage-gluster - Virtualization daemon glusterfs 
storage driver
 libvirt-daemon-driver-storage-rbd - Virtualization daemon RBD storage driver
 libvirt-daemon-driver-storage-sheepdog - Virtualization daemon Sheedog storage 
driver
 libvirt-daemon-driver-storage-zfs - Virtualization daemon ZFS storage driver
 libvirt-daemon-system - Libvirt daemon configuration files
 libvirt-dev - development files for the libvirt library
 libvirt-doc - documentation for the libvirt library
 libvirt-sanlock - Sanlock plugin for virtlockd
 libvirt-wireshark - Wireshark dissector for the libvirt protocol
 libvirt0   - library for interfacing with different virtualization systems
Closes: 846534 881293 884828 887612 887700
Changes:
 libvirt (4.0.0-1) unstable; urgency=medium
 .
   * [5936904] New upstream version 4.0.0
   * [bcb7ca3] Drop patches applied upstream.
       Allow-libvirt-to-kill-unconfined-domains.patch
       Drop qemu-avoid-denial-of-service-reading-from-QEMU-monitor-CV.patch
 .
 libvirt (4.0.0~rc2-1) experimental; urgency=medium
 .
   * [8dd2f5b] Don't manage /etc/apparmor.d/local as conf files
     (Closes: #887612)
   * [0819e5a] apparmor: allow libvirt to send term signal to unconfined
   * [b1ecc1a] New upstream version 4.0.0~rc2
   * [7406ae5] CVE-2018-5748: qemu: avoid denial of service reading from QEMU
     monitor (Closes: #887700)
   * [564e232] Bump symbol versions
   * [0a274c0] d/control: use priority optional instead of extra
 .
 libvirt (4.0.0~rc1-1) experimental; urgency=medium
 .
   [ Guido Günther ]
   * [a225d2b] New upstream version 4.0.0~rc1
     (Closes: #881293, #846534)
   * [2270343] Rediff patches
 .
   [ intrigeri ]
   * [89b8ab4] Allow libvirt to kill unconfined domains
 .
   [ Christian Ehrhardt ]
   * [b2ce106] Clear more directories on purge
     (Closes: #884828)
   * [0cd10ab] Avoid apt seccomp issues due to libnss-libvirt
     (LP: #1732030)
Checksums-Sha1:
 92603f9f9a48ca3c48a1dca27fcfe1fbce24800e 4492 libvirt_4.0.0-1.dsc
 b1c83abbba1da9eef79cc36688557ab32c6f42a7 15002248 libvirt_4.0.0.orig.tar.xz
 d2b1110d7edb38f231524f56717219a0708165c2 68092 libvirt_4.0.0-1.debian.tar.xz
 1a12469dc4db6d1e17cbbbcedede62a61de09d4d 19895 libvirt_4.0.0-1_amd64.buildinfo
Checksums-Sha256:
 6381543f7128c35d79a42381b42de36272459d842943a769739d840d719cac6a 4492 
libvirt_4.0.0-1.dsc
 e9e8ca1a696b70bca572f367e35807a9800a59aec5158b95fe7f4802a5fadfc8 15002248 
libvirt_4.0.0.orig.tar.xz
 4fa78825bd802c34e8a40fc7a9d4bdcfa44489ba0b22703552f2306fc6eb3332 68092 
libvirt_4.0.0-1.debian.tar.xz
 a62f9af1f299cb5c2fb9c23a97e24fbed3e5f6a880919845a6c42b01035aa537 19895 
libvirt_4.0.0-1_amd64.buildinfo
Files:
 895f10bec1a8183fc5a436127777e24b 4492 libs optional libvirt_4.0.0-1.dsc
 ff0dbdd8ec4ac1277588dfe3b245d0e9 15002248 libs optional 
libvirt_4.0.0.orig.tar.xz
 1999a77199bceaca9dba42a00ed38b02 68092 libs optional 
libvirt_4.0.0-1.debian.tar.xz
 b949c6ec14cafd6619ad23a385eadf1c 19895 libs optional 
libvirt_4.0.0-1_amd64.buildinfo

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--- End Message ---

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