Bug#275735: xserver-xfree86-dbg: server (normal and -dbg) lock with radeon (Mobility 7500 M7 LW) on an ibook

[Michel Dänzer <daenzer@debian.org>]

On Mon, 2004-10-18 at 07:31 -0500, Branden Robinson wrote:
> 
> On Sat, Oct 09, 2004 at 11:43:38PM +0200, David Decotigny wrote:
> > Here are some gdb traces on the -dbg version of the server (debian 2.6.8 ppc UP
> > kernel). In gdb I tried to break multiple times to see whether the call
> > stack changed. Another trace comes afterwards, which was made with the
> > "normal" version of the server (ie no debug):
> [...]
> > 0x0fe154cc in ioctl () from /lib/libc.so.6
> > (gdb) bt
> > #0  0x0fe154cc in ioctl () from /lib/libc.so.6
> > #1  0x1047b520 in drmDMA (fd=7, request=0x7ffff560) at xf86drm.c:796
> > #2  0x10053764 in RADEONCPGetBuffer (pScrn=0x10d40f40) at radeon_accel.c:490
> > #3  0x10051bb4 in RADEONSetupForScanlineImageWriteCP (pScrn=0x10d40f40, rop=3,
> >     planemask=4294967295, trans_color=-1, bpp=32, depth=24)
> >     at radeon_accelfuncs.c:941
> > #4  0x102dcfd0 in XAAWritePixmapScanline (pScrn=0x10d40f40, x=525, y=53,
> >     w=374, h=3, src=0x10fb7bc0 "", srcwidth=1496, rop=3, planemask=4294967295,
> >     trans=-1, bpp=32, depth=24) at xaaImage.c:354
> 
> This sort of thing is a bit beyond me.  Locking up during an ioctl()
> suggests to me that the problem might be in the kernel DRM driver.

This is one of many possible symptoms of a chip lockup, which is
probably caused by the 3D driver in xlibmesa-dri.


-- 
Earthling Michel Dänzer      |     Debian (powerpc), X and DRI developer
Libre software enthusiast    |   http://svcs.affero.net/rm.php?r=daenzer