ubuntu-x-swat team mailing list archive

[Fuchs <spam@xxxxxxxxxxx>]

As promised I attached the information I was asked for.

Even though I am quite sure that it wont help much, as the interesting
thing about Xorg is the Segmentation Fault with back trace.

As far as I can see/guess, there is some caching going on for glyphs
when font antialiasing is enabled. However, some applications (kmail is
easiest, maybe due to the fact that it hides windows?) seems to trigger
a glyph lookup which tries to fetch from an invalid / forbidden memory
section. This is why it's a bit hard for me to tell which package really
causes this, but my best guess is Xorg and the video driver.  I know
that this is a bug which might be hard to reproduce, but unfortunately I
can't do much more.

As said, this only happens with font antialiasing enabled, and only with
some fonts (default binding for serif/sans serif, which should be
dejavu). Easiest way to trigger:  (might be better to do this in gnome)
go to systemsettings, font settings, revert all settings to standard,
apply, start kmail, reply to a mail. Xorg should crash. At least it does
that here, 100% reproducible.

Kind regards,

Christian


** Attachment added: "requested files"
   http://launchpadlibrarian.net/33021488/info.zip

-- 
Xorg crashes with SIG 11 in FindGlyphRef
https://bugs.launchpad.net/bugs/442144
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