- Package:
- src:libvirt
- Source:
- src:libvirt
- Submitter:
- Anonymous
- Date:
- 2025-08-29 07:03:01 UTC
- Severity:
- normal
Dear Maintainer, after upgrading today I received the following qemu-* packages: qemu-block-extra 1:10.1.0+ds-1 amd64 qemu-system 1:10.1.0+ds-1 amd64 qemu-system-arm 1:10.1.0+ds-1 amd64 qemu-system-common 1:10.1.0+ds-1 amd64 qemu-system-gui 1:10.1.0+ds-1 amd64 qemu-system-mips 1:10.1.0+ds-1 amd64 qemu-system-misc 1:10.1.0+ds-1 amd64 qemu-system-modules-opengl 1:10.1.0+ds-1 amd64 qemu-system-modules-spice 1:10.1.0+ds-1 amd64 qemu-system-ppc 1:10.1.0+ds-1 amd64 qemu-system-riscv 1:10.1.0+ds-1 amd64 qemu-system-s390x 1:10.1.0+ds-1 amd64 qemu-system-sparc 1:10.1.0+ds-1 amd64 qemu-system-x86 1:10.1.0+ds-1 amd64 qemu-utils 1:10.1.0+ds-1 amd64 qemu-system-data 1:10.1.0+ds-1 all With these versions of qemu and its auxiliary packages I am unable to connect to my local libvirtd daemon (qemu://system). I see the following segfault in the journal: Aug 28 08:23:21 hostname kernel: rpc-libvirtd[3284]: segfault at 0 ip 00007f0fe3c8123a sp 00007f100d3fe470 error 4 in libvirt_driver_qemu.so[8123a,7f0fe3c4b000+135000] likely on CPU 0 (core 0, socket 0) Aug 28 08:23:21 hostname kernel: Code: 0f 31 c0 48 83 c4 08 5b 5d 41 5c 41 5d c3 66 90 41 8b 74 24 78 48 8d 53 38 48 89 ef e8 0f fd ff ff 83 f8 ff 74 dd 4c 8b 6b 38 <49> 83 7d 00 00 74 d0 31 db 48 8d 2d 62 af 10 00 eb 0e 0f 1f 40 00 Aug 28 08:23:21 hostname systemd[1]: libvirtd.service: Main process exited, code=killed, status=11/SEGV Aug 28 08:23:21 hostname systemd[1]: libvirtd.service: Failed with result 'signal'. Aug 28 08:23:21 hostname systemd[1]: libvirtd.service: Unit process 3237 (qemu- system-alp) remains running after unit stopped. Aug 28 08:23:21 hostname systemd[1]: libvirtd.service: Unit process 3279 (qemu- system-alp) remains running after unit stopped. Aug 28 08:23:21 hostname systemd[1]: libvirtd.service: Unit process 3382 (qemu- system-alp) remains running after unit stopped. Aug 28 08:23:21 hostname systemd[1]: libvirtd.service: Consumed 601ms CPU time, 182.4M memory peak. Aug 28 08:23:21 hostname systemd[1]: libvirtd.service: Scheduled restart job, restart counter is at 3. Aug 28 08:23:21 hostname systemd[1]: libvirtd.service: Found left-over process 3237 (qemu-system-alp) in control group while starting unit. Ignoring. Aug 28 08:23:21 hostname systemd[1]: libvirtd.service: This usually indicates unclean termination of a previous run, or service implementation deficiencies. Aug 28 08:23:21 hostname systemd[1]: libvirtd.service: Found left-over process 3279 (qemu-system-alp) in control group while starting unit. Ignoring. Aug 28 08:23:21 hostname systemd[1]: libvirtd.service: This usually indicates unclean termination of a previous run, or service implementation deficiencies. Aug 28 08:23:21 hostname systemd[1]: libvirtd.service: Found left-over process 3382 (qemu-system-alp) in control group while starting unit. Ignoring. Aug 28 08:23:21 hostname systemd[1]: libvirtd.service: This usually indicates unclean termination of a previous run, or service implementation deficiencies. Aug 28 08:23:21 hostname systemd[1]: Starting libvirtd.service - libvirt legacy monolithic daemon... Aug 28 08:23:22 hostname systemd[1]: Started libvirtd.service - libvirt legacy monolithic daemon. Restarting the system did not solve the problem. Downgrading to the previous qemu-* package versions as follows fixed the problem and I am able to connect to the daemon again: # Download previous packages versions wget https://snapshot.debian.org/archive/debian/20250821T204848Z/pool/main/q/qemu/qemu- block-extra_10.0.3+ds-4_amd64.deb wget https://snapshot.debian.org/archive/debian/20250821T204848Z/pool/main/q/qemu/qemu- system_10.0.3+ds-4_amd64.deb wget https://snapshot.debian.org/archive/debian/20250821T204848Z/pool/main/q/qemu/qemu- system-arm_10.0.3+ds-4_amd64.deb wget https://snapshot.debian.org/archive/debian/20250821T204848Z/pool/main/q/qemu/qemu- system-common_10.0.3+ds-4_amd64.deb wget https://snapshot.debian.org/archive/debian/20250821T204848Z/pool/main/q/qemu/qemu- system-gui_10.0.3+ds-4_amd64.deb wget https://snapshot.debian.org/archive/debian/20250821T204848Z/pool/main/q/qemu/qemu- system-mips_10.0.3+ds-4_amd64.deb wget https://snapshot.debian.org/archive/debian/20250821T204848Z/pool/main/q/qemu/qemu- system-misc_10.0.3+ds-4_amd64.deb wget https://snapshot.debian.org/archive/debian/20250821T204848Z/pool/main/q/qemu/qemu- system-modules-opengl_10.0.3+ds-4_amd64.deb wget https://snapshot.debian.org/archive/debian/20250821T204848Z/pool/main/q/qemu/qemu- system-modules-spice_10.0.3+ds-4_amd64.deb wget https://snapshot.debian.org/archive/debian/20250821T204848Z/pool/main/q/qemu/qemu- system-ppc_10.0.3+ds-4_amd64.deb wget https://snapshot.debian.org/archive/debian/20250821T204848Z/pool/main/q/qemu/qemu- system-riscv_10.0.3+ds-4_amd64.deb wget https://snapshot.debian.org/archive/debian/20250821T204848Z/pool/main/q/qemu/qemu- system-s390x_10.0.3+ds-4_amd64.deb wget https://snapshot.debian.org/archive/debian/20250821T204848Z/pool/main/q/qemu/qemu- system-sparc_10.0.3+ds-4_amd64.deb wget https://snapshot.debian.org/archive/debian/20250821T204848Z/pool/main/q/qemu/qemu- system-x86_10.0.3+ds-4_amd64.deb wget https://snapshot.debian.org/archive/debian/20250821T204848Z/pool/main/q/qemu/qemu- utils_10.0.3+ds-4_amd64.deb wget https://snapshot.debian.org/archive/debian/20250821T204848Z/pool/main/q/qemu/qemu- system-data_10.0.3+ds-4_all.deb # Perform downgrade sudo apt install ./qemu-* Kind regards and thanks for your time, David
Control: reassign -1 src:libvirt Control: affects -1 src:qemu ... You most likely don't need all these packages, as you seems to only using x86 version. It should be enough to install just qemu-system-x86, and maybe qemu-utils. But this is unrelated to your bug report. ... This is an issue in libvirt, not qemu, - it is the one who segfaults, and it definitely should not crash. Reassigning this bug to libvirt. Unfortunately there's no indication which version of libvirt you're using, hopefully it's the one in sid? Thanks, /mjt
Hello Michael, I would agree, however, removing, for example, qemu-system-mips would also remove qemu-system for me. Thanks, I am using 11.3.0-3+b1 of libvirt-daemon. Kind regards, David
Control: found -1 11.3.0-3+b1 Sure, - qemu-system is an emtpy meta-package which just depends on all of qemu-system-* variants -- it's here since old days when there was single qemu-system package with all qemu system emulators, rather huge - later on I split it into separate families, and most of the time only one family is used. You don't need qemu-system, just particular family of it. Hopefully all packages which use qemu (like libvirt) has proper dependency - on particular family of qemu-system or on qemu-system-any. Thanks, /mjt
libvirt locally? Perhaps including custom changes? Agreed. Can you try installing libvirt 11.6.0-1 from experimental and see whether the issue still reproduces? Alternatively, 11.7.0-1 should come to unstable in a week or so. Since there's a non-zero chance that the issue has already been identified and addressed upstream, I'm not too eager to start debugging this very second :)
It's what we have in trixie - libvirt-daemon version 11.3.0-3+b1, see libvirt package tracking page :) Thanks, /mjt
I checked tracker.debian.org and couldn't find any mention of it, but
of course you're right:
libvirt (11.3.0-3+b1) sid; urgency=low, binary-only=yes
.
* Binary-only non-maintainer upload for amd64; no source changes.
* Rebuild against libxml2-16
.
-- amd64 / i386 Build Daemon (x86-ubc-01) <buildd_amd64-x86-ubc-01@buildd.debian.org> Sun, 17 Aug 2025 18:38:51 +0000
So that explains the oddity. The rest of my message still applies.
Thanks, I was not aware of this! I removed the unneeded packages.
For reasons I don't quite understand, the issue appears to have solved
itself. Just for testing purposes, I re-installed qemu 10.1.0+ds-1 and
now the segfaults upon connecting to qemu://system with virt-manager do
not happen anymore.
I currently have the following versions of qemu and libvirt installed:
dpkg -l | grep -E '(^ii libvirt|^ii qemu)'
ii libvirt-clients 11.3.0-3+b1
amd64 virtualization library - clients
ii libvirt-common 11.3.0-3+b1
amd64 virtualization library - common files
ii libvirt-daemon 11.3.0-3+b1
amd64 virtualization daemon
ii libvirt-daemon-common 11.3.0-3+b1
amd64 virtualization daemon - common files
ii libvirt-daemon-config-network 11.3.0-3
all virtualization daemon - configuration files
(default network)
ii libvirt-daemon-config-nwfilter 11.3.0-3
all virtualization daemon - configuration files
(default network filters)
ii libvirt-daemon-driver-interface 11.3.0-3+b1
amd64 virtualization daemon - interface driver
ii libvirt-daemon-driver-lxc 11.3.0-3+b1
amd64 virtualization daemon - LXC connection driver
ii libvirt-daemon-driver-network 11.3.0-3+b1
amd64 virtualization daemon - network driver
ii libvirt-daemon-driver-nodedev 11.3.0-3+b1
amd64 virtualization daemon - node device (nodedev)
driver
ii libvirt-daemon-driver-nwfilter 11.3.0-3+b1
amd64 virtualization daemon - network filter
(nwfilter) driver
ii libvirt-daemon-driver-qemu 11.3.0-3+b1
amd64 virtualization daemon - QEMU connection driver
ii libvirt-daemon-driver-secret 11.3.0-3+b1
amd64 virtualization daemon - secret driver
ii libvirt-daemon-driver-storage 11.3.0-3+b1
amd64 virtualization daemon - storage driver
ii libvirt-daemon-driver-storage-disk 11.3.0-3+b1
amd64 virtualization daemon - disk storage driver
ii libvirt-daemon-driver-storage-logical 11.3.0-3+b1
amd64 virtualization daemon - Logical Volume Manager
(LVM) storage driver
ii libvirt-daemon-driver-storage-mpath 11.3.0-3+b1
amd64 virtualization daemon - multipath (mpath)
storage driver
ii libvirt-daemon-driver-storage-scsi 11.3.0-3+b1
amd64 virtualization daemon - SCSI storage driver
ii libvirt-daemon-driver-vbox 11.3.0-3+b1
amd64 virtualization daemon - VirtualBox connection
driver
ii libvirt-daemon-lock 11.3.0-3+b1
amd64 virtualization daemon - locking daemon
ii libvirt-daemon-log 11.3.0-3+b1
amd64 virtualization daemon - logging daemon
ii libvirt-daemon-plugin-lockd 11.3.0-3+b1
amd64 virtualization daemon - locking plugin (virtlockd)
ii libvirt-daemon-system 11.3.0-3+b1
amd64 virtualization daemon - typical QEMU-based
deployment
ii libvirt-glib-1.0-0:amd64 5.0.0-2+b5
amd64 libvirt GLib and GObject mapping library
ii libvirt-glib-1.0-data 5.0.0-2
all Common files for libvirt GLib library
ii libvirt-l10n 11.3.0-3
all virtualization library - localization files
ii libvirt0:amd64 11.3.0-3+b1
amd64 virtualization library
ii qemu-block-extra 1:10.1.0+ds-1
amd64 extra block backend modules for qemu-system
and qemu-utils
ii qemu-system-common 1:10.1.0+ds-1
amd64 QEMU full system emulation binaries (common files)
ii qemu-system-data 1:10.1.0+ds-1
all QEMU full system emulation (data files)
ii qemu-system-gui 1:10.1.0+ds-1
amd64 QEMU full system emulation binaries (graphical
display and audio modules)
ii qemu-system-modules-opengl 1:10.1.0+ds-1
amd64 QEMU full system emulation binaries (OpenGL
display modules)
ii qemu-system-modules-spice 1:10.1.0+ds-1
amd64 QEMU full system emulation binaries (spice
display modules)
ii qemu-system-x86 1:10.1.0+ds-1
amd64 QEMU full system emulation binaries (x86)
ii qemu-utils 1:10.1.0+ds-1
amd64 QEMU utilities
I can assist further in debugging if desired. Otherwise the bug can be
closed.
Kind regards and thanks for your time,
David
https://bugs.debian.org/1112330 (CC'd). FWIW. Thanks, /mjt