This bug was fixed in the package qemu - 1:2.11+dfsg-1ubuntu7.5
---
qemu (1:2.11+dfsg-1ubuntu7.5) bionic; urgency=medium
[Christian Ehrhardt]
* d/p/lp-1755912-qxl-fix-local-renderer-crash.patch: Fix an issue triggered
by migrations with UI frontends or frequent guest
Subscribed there as well now to stay on top of it if upstream gets to a
conclusion.
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Title:
qemu-system-x86_64 crashed with SIGABRT when using
Arr reading is hard today, you had the other bug open already ... grml
:-)
Never the less - This bug here is fixed in the proposed version and for
now that is the important part.
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Thanks Leonardo for your check as well!
I agree that this particular issue here is fixed as we hoped.
The other one with the freeze did not occur for me, you might open another bug
if you have any pointers how we could go on on this.
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Running the Bionic ISO like:
$ qemu-system-x86_64 -cpu host -smp cores=4,threads=2 -boot d -m 2048
-enable-kvm -vga qxl -vnc :21 -cdrom ubuntu-18.04-desktop-amd64.iso
Attaching like:
$ vncviewer FullColor=1 AutoSelect=0 10.245.168.42:5921
(alternatives on tigervnc)
Well for me it had "-k de" as
Note: The code change already passed the general regression checks on
the identical content against a PPA (Also on the weekend prior to the
full maturing period I'll have another automated run on proposed).
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Thank you for the effort to backport this bug fix, I have tested the
proposed version 2.11.1(Debian 1:2.11+dfsg-1ubuntu7.5) and the crash
when changing resolution is no longer happening. Unfortunately, after
some time (about 10 minutes, much longer than without this fix), the
guest freezes.
I
Hello Leonardo, or anyone else affected,
Accepted qemu into bionic-proposed. The package will build now and be
available at https://launchpad.net/ubuntu/+source/qemu/1:2.11+dfsg-
1ubuntu7.5 in a few hours, and then in the -proposed repository.
Please help us by testing this new package. See
** Description changed:
- When using qemu-system-x86_64 with the option -vga qxl, it crashes. The
- easiest way to crash it is by trying to change the guest's resolution.
- However, the system may randomly crash too, not happening only when
- changing resolution. Here is the terminal output of
Working on Bionic SRu prep in https://launchpad.net/~ci-train-ppa-
service/+archive/ubuntu/3367/+packages
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https://bugs.launchpad.net/bugs/1755912
Title:
qemu-system-x86_64 crashed
** Changed in: qemu
Status: Fix Committed => Fix Released
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Title:
qemu-system-x86_64 crashed with SIGABRT when using option -vga qxl
** Changed in: qemu (Ubuntu Bionic)
Status: New => Triaged
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Title:
qemu-system-x86_64 crashed with SIGABRT when using option -vga qxl
This bug was fixed in the package qemu - 1:2.12+dfsg-3ubuntu3
---
qemu (1:2.12+dfsg-3ubuntu3) cosmic; urgency=medium
* d/p/lp-1755912-qxl-fix-local-renderer-crash.patch: Fix an issue triggered
by migrations with UI frontends or frequent guest resolution changes
(LP:
** Also affects: qemu (Ubuntu Bionic)
Importance: Undecided
Status: New
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Title:
qemu-system-x86_64 crashed with SIGABRT when using
Nice, thanks Leonardo for the Bisect - lets call upstream Fixed
Committed then (as there is no 2.13 released yet).
For the separate gl discussion feel free to subscribe/chime in on bug
1657409
Currently 2.12 is on its way into Cosmic.
I'll add and test that patch afterwards, it looks small and
The bisect is done and this is the result:
5bd5c27c7d284d01477c5cc022ce22438c46bf9f is the first new commit
commit 5bd5c27c7d284d01477c5cc022ce22438c46bf9f
Author: Gerd Hoffmann
Date: Fri Apr 27 13:55:28 2018 +0200
qxl: fix local renderer crash
Make sure we only ask the spice
I meant the option --enable-opengl and, for old versions, --enable-gtk-
gl. I know it is required to use virtual machines using Intel GVT-g with
dma-buf, and is a option strangely absent from QEMU configuration from
Ubuntu's build. Without it, virgl fails too, making virt-manager have an
option
Yeah we switched to gtk.
With OpenGL which do you mean - the virtgl based support or some other config
option?
Since it still fails to reproduce for me, but you already have a self build
qemu that is good.
Could you based on this build 2.12 from source as well and confirm that it
fails.
If it
Unfortunately it did not work, the error is still the same although it
used the GTK interface this time. The command I used was:
$ qemu-system-x86_64 -vga qxl -enable-kvm -cpu host -smp
cores=2,threads=2 -m 2048 -cdrom xubuntu-18.04-desktop-amd64.iso
I have noticed Ubuntu's QEMU and this QEMU
Link is better as https://launchpad.net/~ci-train-ppa-
service/+archive/ubuntu/3306
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Title:
qemu-system-x86_64 crashed with SIGABRT when using
Very interesting, Still not triggering for me :-/
Could you check if the PPA in [1] (with qemu 2.12 planned for Cosmic) already
fixes it for you?
[1]: https://launchpad.net/~ci-train-ppa-
service/+archive/ubuntu/3306/+packages
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** Tags added: cosmic
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Title:
qemu-system-x86_64 crashed with SIGABRT when using option -vga qxl
Status in QEMU:
New
Status in qemu package
QEMU from git apparently is fixed, but Ubuntu's version is still
problematic.
Using an Xubuntu 18.04 guest, it's possible to reproduce the crash
using:
while true ; do xrandr --output Virtual-0 --mode 640x480 ; sleep 1 ;
xrandr --output Virtual-0 --mode 1280x720 ; sleep 1 ; xrandr --output
The bug traces so far had no private information, so I opened up the
state to be visible to everyone.
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Title:
qemu-system-x86_64 crashed with
Thanks Leonardo, with that confirmed:
- not dependent on the guest distribution
- affecting latest upstream
- good logs on the crash
The videos are not needed but nice to proove your case (just as my pre-
analysis of the code path is nice but likely not useful to a developer
that regularly works
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