Red Hat Bugzilla – Bug 79141
[4.2.1-9] reproducible segfault in X
Last modified: 2007-04-18 12:48:53 EDT
Not sure if you still care about 4.2.1-9, reporting just in case (not sure if
bug exists in some other versions as well).
I came across a 100% reporducible crash in X, caused by gv (even in the absense
of any other X client, WM, etc):
env -i HOME=$HOME XAUTHORITY=$XAUTHORITY PATH=$PATH X :2 -auth $XAUTHORITY &
env -i HOME=$HOME XAUTHORITY=$XAUTHORITY PATH=$PATH DISPLAY=:2 gv /tmp/pentgrph.eps
and the X crashes (as soon as I switch to the virtual console under which this
instance of X is running). I'll attach all the relavant files shortly.
I am running 8.0 + most updates + XFree86-4.2.1-9 (I wanted to run Mozilla-xft,
so I wanted a version of X that has the xft bug fixed). The video card is
(according to lspci) "ATI Technologies Inc Radeon Mobility M7 LW [Radeon
Mobility 7500]" in Dell Latitude C640.
Created attachment 87644 [details]
Warning: Clicking this link could crash your X!
Created attachment 87645 [details]
Created attachment 87646 [details]
gdb stack trace (not too informative)
Created attachment 87647 [details]
Created attachment 87648 [details]
lspci -vv output
You are not using an official Red Hat kernel, you are using a custom
built kernel, which Red Hat does not support.
Is this problem reproduceable using the latest official Red Hat released
kernel erratum for RHL 8.0?
You are also using an input driver which is not part of Red Hat Linux,
and not supported by Red Hat. Since externally supplied X driver modules
become part of the XFree86 process itself once dynamically loaded, your
entire setup is unsupported. It also looks to me like the driver you've
added is what is causing the problem.
Closing bug NOTABUG.
I replaces the synaptics driver with a normal IMPS/2 one and I still get the
crash. The custom kernel is almost identical to the Red Hat's one (same sources
with slightly different config settings), but to be sure I will test it using a
regular kernel too and will let you know.
Yes, still getting the same crash under 2.4.18-19.8.0. I'll attach the relevant
Created attachment 88936 [details]
Simplified XF86Config that I used to reporduce the problem.
This does not use synaptics driver or (I believe) anything else nonstandard.
Created attachment 88937 [details]
X log (running under the standard 2.4.18-19.8.0, using a simple config)
FWIW, it works OK in Phoebe.
Closing as RAWHIDE