Bug#1112273: [Pkg-libvirt-maintainers] Bug#1112273: qemu-system: rpc-libvirtd segfaults in combination with qemu 10.1.0+ds-1
Hi, On 9/7/25 9:21 PM, Andrea Bolognani wrote: On Thu, Aug 28, 2025 at 09:42:22PM +0200, Andrea Bolognani wrote: On Thu, Aug 28, 2025 at 09:48:45AM +0200, David Brown wrote: On 8/28/25 9:39 AM, Michael Tokarev wrote: This is an issue in libvirt, not qemu, - it is the one who segfaults, and it definitely should not crash. 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 :) 11.7.0-1 is available from unstable and testing now. Can you please verify wether the issue still shows up there? The issues does also not manifest itself anymore with 11.7.0-1. Kind regards, David OpenPGP_signature.asc Description: OpenPGP digital signature
Bug#1112273: [Pkg-libvirt-maintainers] Bug#1112273: qemu-system: rpc-libvirtd segfaults in combination with qemu 10.1.0+ds-1
On Thu, Aug 28, 2025 at 09:42:22PM +0200, Andrea Bolognani wrote: > On Thu, Aug 28, 2025 at 09:48:45AM +0200, David Brown wrote: > > On 8/28/25 9:39 AM, Michael Tokarev wrote: > > > This is an issue in libvirt, not qemu, - it is the one who segfaults, > > > and it definitely should not crash. > > 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 :) 11.7.0-1 is available from unstable and testing now. Can you please verify wether the issue still shows up there? -- Andrea Bolognani Resistance is futile, you will be garbage collected. signature.asc Description: PGP signature
Bug#1112273: [Pkg-libvirt-maintainers] Bug#1112273: qemu-system: rpc-libvirtd segfaults in combination with qemu 10.1.0+ds-1
On 29.08.2025 08:39, David Brown wrote: 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. You're not alone with the original segfault though: see https://bugs.debian.org/1112330 (CC'd). FWIW. Thanks, /mjt
Bug#1112273: [Pkg-libvirt-maintainers] Bug#1112273: qemu-system: rpc-libvirtd segfaults in combination with qemu 10.1.0+ds-1
On 8/28/25 9:42 PM, Andrea Bolognani wrote: On Thu, Aug 28, 2025 at 09:48:45AM +0200, David Brown wrote: On 8/28/25 9:39 AM, Michael Tokarev wrote: 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, I am using 11.3.0-3+b1 of libvirt-daemon. This looks odd: there is no 11.3.0-3+b1 in Debian. Have you rebuilt libvirt locally? Perhaps including custom changes? This is an issue in libvirt, not qemu, - it is the one who segfaults, and it definitely should not crash. 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 :) 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 amd64virtualization library - clients ii libvirt-common 11.3.0-3+b1 amd64virtualization library - common files ii libvirt-daemon 11.3.0-3+b1 amd64virtualization daemon ii libvirt-daemon-common 11.3.0-3+b1 amd64virtualization 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 amd64virtualization daemon - interface driver ii libvirt-daemon-driver-lxc 11.3.0-3+b1 amd64virtualization daemon - LXC connection driver ii libvirt-daemon-driver-network 11.3.0-3+b1 amd64virtualization daemon - network driver ii libvirt-daemon-driver-nodedev 11.3.0-3+b1 amd64virtualization daemon - node device (nodedev) driver ii libvirt-daemon-driver-nwfilter 11.3.0-3+b1 amd64virtualization daemon - network filter (nwfilter) driver ii libvirt-daemon-driver-qemu 11.3.0-3+b1 amd64virtualization daemon - QEMU connection driver ii libvirt-daemon-driver-secret11.3.0-3+b1 amd64virtualization daemon - secret driver ii libvirt-daemon-driver-storage 11.3.0-3+b1 amd64virtualization daemon - storage driver ii libvirt-daemon-driver-storage-disk 11.3.0-3+b1 amd64virtualization daemon - disk storage driver ii libvirt-daemon-driver-storage-logical 11.3.0-3+b1 amd64virtualization daemon - Logical Volume Manager (LVM) storage driver ii libvirt-daemon-driver-storage-mpath 11.3.0-3+b1 amd64virtualization daemon - multipath (mpath) storage driver ii libvirt-daemon-driver-storage-scsi 11.3.0-3+b1 amd64virtualization daemon - SCSI storage driver ii libvirt-daemon-driver-vbox 11.3.0-3+b1 amd64virtualization daemon - VirtualBox connection driver ii libvirt-daemon-lock 11.3.0-3+b1 amd64virtualization daemon - locking daemon ii libvirt-daemon-log 11.3.0-3+b1 amd64virtualization daemon - logging daemon ii libvirt-daemon-plugin-lockd 11.3.0-3+b1 amd64virtualization daemon - locking plugin (virtlockd) ii libvirt-daemon-system 11.3.0-3+b1 amd64virtualization daemon - typical QEMU-based deployment ii libvirt-glib-1.0-0:amd645.0.0-2+b5 amd64libvirt GLib and GObject mapping library ii libvirt-glib-1.0-data 5.0.0-2 all Common files for libvirt GLib library ii libvirt-l10n11.3.0-3 all virtualization library - localization files ii libvirt0:amd64 11.3.0-3+b1 amd64virtualization library ii qemu-block-extra1:10.1.0+ds-1 amd64extra block backend modules for qemu-system and qemu-utils ii qemu-system-common 1:10.1.0+ds-1 amd64QEMU full system emulation binaries (common files) ii qemu-system-data
Bug#1112273: [Pkg-libvirt-maintainers] Bug#1112273: qemu-system: rpc-libvirtd segfaults in combination with qemu 10.1.0+ds-1
On Fri, Aug 29, 2025 at 12:44:57AM +0300, Michael Tokarev wrote: > On 28.08.2025 22:42, Andrea Bolognani wrote: > > On Thu, Aug 28, 2025 at 09:48:45AM +0200, David Brown wrote: > > > > Thanks, I am using 11.3.0-3+b1 of libvirt-daemon. > > > > This looks odd: there is no 11.3.0-3+b1 in Debian. Have you rebuilt > > libvirt locally? Perhaps including custom changes? > > It's what we have in trixie - libvirt-daemon version 11.3.0-3+b1, > see libvirt package tracking page :) 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) Sun, 17 Aug 2025 18:38:51 + So that explains the oddity. The rest of my message still applies. -- Andrea Bolognani Resistance is futile, you will be garbage collected. signature.asc Description: PGP signature
Bug#1112273: [Pkg-libvirt-maintainers] Bug#1112273: qemu-system: rpc-libvirtd segfaults in combination with qemu 10.1.0+ds-1
On 28.08.2025 22:42, Andrea Bolognani wrote: On Thu, Aug 28, 2025 at 09:48:45AM +0200, David Brown wrote: Thanks, I am using 11.3.0-3+b1 of libvirt-daemon. This looks odd: there is no 11.3.0-3+b1 in Debian. Have you rebuilt libvirt locally? Perhaps including custom changes? It's what we have in trixie - libvirt-daemon version 11.3.0-3+b1, see libvirt package tracking page :) Thanks, /mjt
Bug#1112273: [Pkg-libvirt-maintainers] Bug#1112273: qemu-system: rpc-libvirtd segfaults in combination with qemu 10.1.0+ds-1
On Thu, Aug 28, 2025 at 09:48:45AM +0200, David Brown wrote: > On 8/28/25 9:39 AM, Michael Tokarev wrote: > > 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, I am using 11.3.0-3+b1 of libvirt-daemon. This looks odd: there is no 11.3.0-3+b1 in Debian. Have you rebuilt libvirt locally? Perhaps including custom changes? > > This is an issue in libvirt, not qemu, - it is the one who segfaults, > > and it definitely should not crash. 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 :) -- Andrea Bolognani Resistance is futile, you will be garbage collected. signature.asc Description: PGP signature
