Intermitent but steady Seg. fault, 199MB core dumps

[peter-lyons-kehl]

Copying from https://forum.manjaro.org/t/add-remove-software-seg-fault-not-showing/172310:

5 years old x64 GNOME (X11) Manjaro, up-to-date, with many AUR packages installed with Add/Remove Software (but no package repository other than Official and AUR). No Flatpak/Snap, nothing very exotic.

Last week (around Dec 17, 2024) Add/Remove Software starting not to show up any window (when run from GNOME > Super key > list of apps).

When I run pamac-manager & in a terminal, I have repeatedly, but NOT consistently, received a segmentation fault error (with no real details). Now even that doesn’t show up. After starting that, for a while there are some processes:

ps aux | grep -i pamac
pkehl    1520009  111 16.9 2655424 1360124 pts/1 Il   11:07   0:15 pamac-manager
root     1520177  0.3  0.2 365688 16960 ?        Ssl  11:07   0:00 /usr/bin/pamac-daemon
pkehl    1520238  0.0  0.0   8920  2228 pts/1    S+   11:07   0:00 grep --colour=auto -i pamac

Then - but only occasionally, comes: [1]+ Segmentation fault (core dumped) pamac-manager.

The process root 1520177 0.0 0.2 365688 16960 ? Ssl 11:07 0:00 /usr/bin/pamac-daemon keeps being active - even after pamac-manager dumps the core.

If I then run pamac update -a, I get Transaction successfully finished. and the above daemon is ended.

pamac update -a seems to work, as does pacman. sudo pacman -Syu is up-to-date.

Same problem (or no obvious difference) with both 6.12.4-1 and 6.13.0rc2-1 kernel (as installed with pacman/pamac/Manjaro Settings Manager).

pamac-manager --version
Pamac  11.7.2-1

Surprisingly, running the following does show Add/Remove Software window, saying “Your system is up to date”:

pamac-manager --updates
MESA-INTEL: warning: ../mesa-24.2.8/src/intel/vulkan_hasvk/anv_formats.c:752: FINISHME: support YUV colorspace with DRM format modifiers
MESA-INTEL: warning: ../mesa-24.2.8/src/intel/vulkan_hasvk/anv_formats.c:783: FINISHME: support more multi-planar formats with DRM modifiers

But, if I then click at the leftmost tab “Browse”, MOST OF THE TIME, but NOT ALL THE TIME- says that Add/Remove Software is unresponsive, and Segmentation fault (core dumped) in terminal again.

But, VERY OCCASIONALLY “Browse” does show the packages.

Core dumps are around 199MB. Where/how can I upload/submit them?

ls -al /var/lib/systemd/coredump
total 2624688
drwxr-xr-x   2 root root    122880 Dec 23 11:14 .
drwxr-xr-x  12 root root      4096 Jul  2 23:52 ..
-rw-r-----+  1 root root 199414968 Dec 23 10:22 core.pamac-manager.2000.27eb6a43903f4acc881b50455f0c532a.1445968.1734978108000000.zst
-rw-r-----+  1 root root 199242374 Dec 23 10:33 core.pamac-manager.2000.27eb6a43903f4acc881b50455f0c532a.1452913.1734978779000000.zst
-rw-r-----+  1 root root 189417563 Dec 23 10:42 core.pamac-manager.2000.27eb6a43903f4acc881b50455f0c532a.1458080.1734979283000000.zst
.....

Or, how can I troubleshoot or get any relevant parts of reports/logs or the core dump that would be small enough to upload?

[peter-lyons-kehl]

Anecdotal, but hopefully it will help you to narrow down/minimize: Right or early after a reboot, or not too later, and on 6.13.0-rc2-1-MANJARO #1 SMP PREEMPT_DYNAMIC Tue, 10 Dec 2024, Pamac still shows warnings:

MESA-INTEL: warning: ../mesa-24.2.8/src/intel/vulkan_hasvk/anv_formats.c:752: FINISHME: support YUV colorspace with DRM format modifiers
MESA-INTEL: warning: ../mesa-24.2.8/src/intel/vulkan_hasvk/anv_formats.c:783: FINISHME: support more multi-planar formats with DRM modifiers

For a while after a reboot, it does show a window, gets updates and installs them. But then it stops (with core dump/seg fault) again.

[peter-lyons-kehl]

Related/Similar: https://forum.manjaro.org/t/stable-updates-2024-12-16-kernels-cinnamon-deepin-cosmic-mauikit-zfs/172003/58?u=peter-kehl

Basically, failing most of the time (but very occasionally succeeding). Many times there is NO error in the shell at all - the process just terminates:

❯ pamac-manager &
[1] 27411

When there are some errors, they vary:

• Often segmentation fault
• Sometimes:

✦ ❯ MESA-INTEL: warning: ../mesa-24.2.8/src/intel/vulkan_hasvk/anv_formats.c:752: FINISHME: support YUV colorspace with DRM format modifiers
MESA-INTEL: warning: ../mesa-24.2.8/src/intel/vulkan_hasvk/anv_formats.c:783: FINISHME: support more multi-planar formats with DRM modifiers

Assorted possibly related:

• I have pamac-gtk 11.7.2-1, no pamac-gtk3

❯ sudo pacman --query pamac-gtk
[sudo] password for pkehl:       
pamac-gtk 11.7.2-1

~ via  v21.7.3 via 🦀 v1.85.0-nightly took 3s 
❯ sudo pacman --query pamac-gtk3
error: package 'pamac-gtk3' was not found

• On current unstable/release candidate (non-realtime) kernel 6.13.0-rc2-1-MANJARO #1 SMP PREEMPT_DYNAMIC, just before seg fault was reported, in the same shell:
  Failed to register: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Remote peer disconnected

• On current stable (non-realtime) kernel 6.12.4-1-MANJARO #1 SMP PREEMPT_DYNAMIC
  with all GNOME extensions turned off (via "Extensions" application):

MESA-INTEL: warning: ../mesa-24.2.8/src/intel/vulkan_hasvk/anv_formats.c:752: FINISHME: support YUV colorspace with DRM format modifiers
MESA-INTEL: warning: ../mesa-24.2.8/src/intel/vulkan_hasvk/anv_formats.c:783: FINISHME: support more multi-planar formats with DRM modifiers

--- and then Pamac DOES start.

It SEEMS that current stable kernel 6.12.4-1-MANJARO is better/more likely to run Pamac than 6.13.0-rc2-1-MANJARO.

If pamac-manager & does run, it's

• only soon after a reboot (not just GNOME log out & log in)
• more likely if all GNOME shell extensions are turned off (via "Extensions" application). However, even if I have GNOME extensions turned on, I have the "Official" extension "Pamac Updates Indicator" turned off, so I don't think there is any parallel/process conflict/race condition.

It seems that pamac-manager --with-any-acceptable-parameter & runs much more reliably than just pamac-manager &, though still showing:

MESA-INTEL: warning: ../mesa-24.2.8/src/intel/vulkan_hasvk/anv_formats.c:752: FINISHME: support YUV colorspace with DRM format modifiers
MESA-INTEL: warning: ../mesa-24.2.8/src/intel/vulkan_hasvk/anv_formats.c:783: FINISHME: support more multi-planar formats with DRM modifiers

• Suprisingly, even after I've installed trizen with yay, trizen is NOT shown by pamac-manager --search=trizen.

[D33M0N]

Crashed for me also a lot, like 75% of times. Replaced pamac-gtk3 with pamac-gtk ... worked for a while. Now started crashing again left and right 100% with also ca 200MB coredumps. ... decided, eff it. Built from scratch from the source. Now working... at least for now.

yay -S vala
cd git
git clone https://github.com/manjaro/pamac.git
cd pamac
mkdir builddir && cd builddir
meson setup --prefix=/usr --sysconfdir=/etc --buildtype=release
meson compile
sudo meson install
pamac-manager

...worksed a little...

...now crashing again 🤣 just hopeless.