Bug#594684: xserver-xorg-video-siliconmotion: siliconmotion driver segfaults on a Lemote YeeLoong (SM712 LynxEM+)
On Wed, Sep 01, 2010 at 02:58:33AM +0200, Cyril Brulebois wrote:
> Hi Tzafrir,
> Tzafrir Cohen <firstname.lastname@example.org> (28/08/2010):
> > I was not able to get any useful backtrace from the core file. So I
> > added some debug messages to the driver. The last part of the log
> > below with those debug messages (befault the segfault message):
> > […]
> > So it basically segfaults at the first outb() in SMI_EnableMmio().
> With “exotic” drivers like this one, you want to install
> xserver-xorg-core-dbg, as well as a customly-rebuilt driver using this
> environment variable: DEB_BUILD_OPTIONS="noopt nostrip"; that should
> get you an exploitable core file.
For the record, there seems to be a patch for it, but one that is too
Loongson-specific, in the two patches mentioned in
As mentioned further down that thread, it did not work for me.
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