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Bug#1054514: linux-image-6.1.0-13-amd64: Debian VM with qxl graphics freezes frequently

Cross-posted to 3 groups.

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Hi,

On Tue, 24 Oct 2023, Salvatore Bonaccorso wrote:
> Thanks for the excelent constructed report! I think it's best to
> forward this directly to upstream including the people for the
> bisected commit to get some idea.

Thanks for the quick reply!

> Can you reproduce the issue with 6.5.8-1 in unstable as well?

Unfortunately yes:

ansible@target:~$ uname -r
6.5.0-3-amd64
ansible@target:~$ time sudo ./reproduce.bash
Wed 25 Oct 2023 12:27:00 AM EEST starting round 1
Wed 25 Oct 2023 12:27:24 AM EEST starting round 2
Wed 25 Oct 2023 12:27:48 AM EEST starting round 3
bug was reproduced after 3 tries

real    0m48.838s
user    0m1.115s
sys     0m45.530s

I also tested upstream tag v6.6-rc6:

...
+ detected_version=6.6.0-rc6
+ '[' 6.6.0-rc6 '!=' 6.6.0-rc6 ']'
+ exec ssh target sudo ./reproduce.bash
Wed 25 Oct 2023 12:37:16 AM EEST starting round 1
Wed 25 Oct 2023 12:37:42 AM EEST starting round 2
Wed 25 Oct 2023 12:38:10 AM EEST starting round 3
Wed 25 Oct 2023 12:38:36 AM EEST starting round 4
Wed 25 Oct 2023 12:39:01 AM EEST starting round 5
Wed 25 Oct 2023 12:39:27 AM EEST starting round 6
bug was reproduced after 6 tries


For completeness, here is also the grub_set_default_version.bash script 
that I had to write to automate this (maybe these could be in debian 
wiki?):

#!/bin/bash
set -x

version="$1"

idx=$(expr $(grep "menuentry " /boot/grub/grub.cfg | sed 1d |grep -n "'Debian GNU/Linux, with Linux $version'"|cut -d: -f1) - 1)
exec sudo grub-set-default "1>$idx"



-Timo

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Bug#1054514: linux-image-6.1.0-13-amd64: Debian VM with qxl graphics freezes frequently Timo Lindfors <timo.lindfors@iki.fi> - 2023-10-24 22:20 +0200
  Bug#1054514: linux-image-6.1.0-13-amd64: Debian VM with qxl graphics freezes frequently Salvatore Bonaccorso <carnil@debian.org> - 2023-10-24 23:20 +0200
    Bug#1054514: linux-image-6.1.0-13-amd64: Debian VM with qxl graphics freezes frequently Timo Lindfors <timo.lindfors@iki.fi> - 2023-10-24 23:50 +0200
      Bug#1054514: linux-image-6.1.0-13-amd64: Debian VM with qxl graphics freezes frequently "Linux regression tracking (Thorsten Leemhuis)"  <regressions@leemhuis.info> - 2023-12-06 11:50 +0100
        Bug#1054514: [PATCH 0/1] drm/qxl: fixes qxl_fence_wait Alex Constantino <dreaming.about.electric.sheep@gmail.com> - 2024-03-08 02:20 +0100
          Bug#1054514: [PATCH 1/1] drm/qxl: fixes qxl_fence_wait Alex Constantino <dreaming.about.electric.sheep@gmail.com> - 2024-03-08 02:20 +0100
            Bug#1054514: [PATCH 1/1] drm/qxl: fixes qxl_fence_wait Thorsten Leemhuis <regressions@leemhuis.info> - 2024-03-08 10:50 +0100
            Bug#1054514: [PATCH 1/1] drm/qxl: fixes qxl_fence_wait "Linux regression tracking (Thorsten Leemhuis)"  <regressions@leemhuis.info> - 2024-03-20 16:30 +0100
              Bug#1054514: [PATCH 1/1] drm/qxl: fixes qxl_fence_wait Maxime Ripard <mripard@kernel.org> - 2024-03-27 14:40 +0100
                Bug#1054514: [PATCH v2 0/1] Revert "drm/qxl: simplify qxl_fence_wait" Alex Constantino <dreaming.about.electric.sheep@gmail.com> - 2024-04-06 09:50 +0200
    Bug#1054514: linux-image-6.1.0-13-amd64: Debian VM with qxl graphics freezes frequently Bagas Sanjaya <bagasdotme@gmail.com> - 2023-10-25 02:10 +0200
  Bug#1054514: [PATCH v2 1/1] Revert "drm/qxl: simplify qxl_fence_wait" Alex Constantino <dreaming.about.electric.sheep@gmail.com> - 2024-04-06 09:50 +0200
    Bug#1054514: [PATCH v2 1/1] Revert "drm/qxl: simplify qxl_fence_wait" Greg KH <gregkh@linuxfoundation.org> - 2024-04-06 09:51 +0200
    Bug#1054514: (subset) [PATCH v2 1/1] Revert "drm/qxl: simplify qxl_fence_wait" Maxime Ripard <mripard@kernel.org> - 2024-04-06 09:51 +0200

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