Hard lockup switching to X from vc; Matrox G400 AGP

Chris Rankin (rankinc@pacbell.net)
Sun, 27 May 2001 14:47:57 -0700 (PDT)


REF: Linux 2.4.5, 2.4.4, 2.4.3 (and probably earlier);
devfs;
SMP (dual PIII);
< 1GB main memory

Hi,

Has anyone noticed their Linux box lock up hard (as in cannot even be
pinged from the local network) when switching from a text vc to a vc
running X? This has happened for me even without the mga.o and
agpgart.o modules being loaded. My current workaround has been to swap
out the Matrox-supplied mga_drv.o and mga_hal_drv.o modules and
replace them with the ones from the standard X 4.03 distribution, but
these are userspace objects and shouldn't be capable of bringing the
kernel down. (Like I said, the machine can't even be pinged.)

My best guess is that the mga_hal_drv.o object is ticking an obscure
kernel bug. I am raising this with the Matrox support line as well.

Cheers,
Chris
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/