[X2Go-User] Many segfault across multiple desktops via X2go server on EL9 systems

[Ulrich Sibiller]

Forgot the link?

Tom Crane <TPCx2go at mklab.ph.rhul.ac.uk> schrieb am Sa., 29. Apr. 2023,
17:29:

> Thanks for the follow-up.
>
> I am not sure re; EL9 and testing against X11/Wayland.
>
> There are some kernel logs showing where the segfault and kernel traps
> occur and also some gdb crashdump analyses with stacks shown at the github
> link below.  The crashes I saw were all in the desktop components and not
> in x2goagent/nxagent.
>
> Tom.
>
>
> On Sat, 29 Apr 2023, Ulrich Sibiller wrote:
>
> > Most probable all those desktops require features that are not offered
> by NX. We have seen many cases where they do not correctly check what
> versions of x server extensions are available and assume higher versions. I
> am not sure but maybe EL9 apps are only tested
> > against Wayland and not longer X11?
> > Do you have more details when they crash? Will the DEs crash or the
> x2goagent/nxagent?
> >
> > Uli
> >
> >
> >
> > Tom Crane <TPCx2go at mklab.ph.rhul.ac.uk> schrieb am Fr., 28. Apr. 2023,
> 21:01:
> >       I originally submitted a detailed bug report at the Mate Desktop
> issues
> >       Github page here
> https://github.com/mate-desktop/mate-desktop/issues/553.
> >
> >       I subsequently discovered that other desktops are similarly
> affected. All
> >       of them experienced segfaults or kernel traps in parts of their
> >       components, particularly in the Marco window manager that Mate
> uses.
> >
> >       I have also tried Gnome, Kde, xfce, Cinnamon & Icewm desktops,
> again on a
> >       Centos Stream 9 system.  Similar results were found on an Alma 9
> system so
> >       I do not believe the problem is specific to the 'upstream' /
> lesser-tested
> >       nature of CS9.
> >
> >       Apart from Icewm which remained usable even with the segfaults,
> the other
> >       desktops (particularly Mate which we use a lot for remote working)
> are
> >       rendered unusable by this problem.  None of our Centos 7 systems
> have this
> >       problem.
> >
> >       I am running out of ideas to diagnose/fix this problem.
> >
> >       Any thoughts?
> >
> >       Thanks
> >       Tom Crane
> >
> >       X2go etc. packages version details (as installed from Epel 9
> repository),
> >               nxagent-3.5.99.26-6.el9.x86_64
> >               nx-libs-3.5.99.26-6.el9.x86_64
> >               x2goagent-4.1.0.3-17.el9.x86_64
> >               x2goserver-4.1.0.3-17.el9.x86_64
> >               x2goserver-common-4.1.0.3-17.el9.noarch
> >               x2goserver-xsession-4.1.0.3-17.el9.noarch
> >       _______________________________________________
> >       x2go-user mailing list
> >       x2go-user at lists.x2go.org
> >       https://lists.x2go.org/listinfo/x2go-user
> >
> >
> >
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