How to debug crash in gnome-shell

guido.hatzsis · n00b Joined: 10 Jul 2015 Posts: 51

I have two machines and two builds which are similar yet different. On one machine I have an ATI card installed and on this machine I cannot run gnome.
gnome-shell start but when I run a terminal and then try to move it I get a crash in:

gnome-shell[12234]: segfault at 8 ip 00007f55b0e088d0 sp 00007ffed38a6f28 error 4 in libmozjs-24.so[7f55b0ce7000+2b1000]

I have managed to reproduce this by creating an xinitrc with dbus-launch gnome-shell and captured core dumps etc. I thought that it was a hardware problem and I mounted the working machine's root to test the drivers and mounted via bind BINDS=(dev sys proc run tmp home var/run var/log var/tmp dev/shm dev/pts) and I was able to run gnome-terminal etc in the chroot environment.

What other things should I try?

eccerr0r · Posted: Fri Jul 17, 2015 2:03 pm Post subject:

There has been a longstanding problem with gnome3 and ati-drivers, seems gnome3 is not compatible with ati-drivers anymore due to gles2/egl... Plus ati-drivers will crash if used with gnome3's gdm and systemd.

It should work fine with the OSS drivers though I haven't tested it. I resorted to using xfce4 for now.
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Intel Core i7 2700K/Radeon R7 250/24GB DDR3/256GB SSD
What am I supposed watching?

guido.hatzsis · n00b Joined: 10 Jul 2015 Posts: 51

Which drivers are these? Do the gnome packages use ati headers for the GL stuff or do they use mesa? Or are you saying that this is a runtime issue. I have tested that its not the drivers in the kernel as the build without ati-drivers runs on the same machine.

You said that this is a longstanding problem. Can you point me to some posts that show that the problem is exactly?

Roman_Gruber · Posted: Sat Jul 18, 2015 3:57 pm Post subject:

libmozjs

sounds like a mozilla firefox binary thing?

you may check waht that thing is and than go along from that

and the net claims ati drivers do not work / work ... seems gnome 3 and ati-drivers have had issues or still have issues ...

guido.hatzsis · n00b Joined: 10 Jul 2015 Posts: 51

[quote="tw04l124"]libmozjs

sounds like a mozilla firefox binary thing?

you may check waht that thing is and than go along from that

and the net claims ati drivers do not work / work ... seems gnome 3 and ati-drivers have had issues or still have issues ...[/quote]

Thank you my friend, but that library belongs to spider monkey. It is used by the gnome-shell.

funker · n00b Joined: 07 Nov 2013 Posts: 18

Hello,

after finishing the gentoo base installation while reading the amd64-handbook and sakaki's gnome-gentoo-guide, I ran into a similar problem like the segfault-issue of gnome-shell. Gnome-shell segfaults in libmozjs-24.so, but I'm running on Intel-Haswell hardware with Intel's 4600HD graphics. I've already tried several versions of gnome (3.16, 3.18 and 3.20; the latter one from the gnome-overlay). It doesn't matter which version, the segfault error is always the same. I've even recompiled everything (--emptytree) with no effect.

Here is my make.conf: