Re: seemingly random lock-up with kernel 2.2.17p7

Michel Dänzer wrote:

Gwyn Judd wrote:

quoted

On Wed, Jul 05, 2000 at 08:51:09AM -0500, me@johngrimes.com wrote:

quoted

Gwyn,
      Might be related or might not but I have recently started having
troubles too with random locks.
      Now I am running 2.2.15 (but this started happening soon after the
upgrade)
      Now my error is not directly with the kernel though.  If I am in
the console it has never happened but only if I am in X.  In fact its X
that crashes but as no keys work it doesn't matter.  Now I always have
xmms open when I crash but it also might be a screensaver problem as it
always happens when the screensaver is one (which is the majority of the
time though).
      Does this sound similar?
      Do you have an ati rage 128gl card by chance?
      John

This all sounds quite familiar. The lockups have happened with both xmms
and mpg123. I have no idea if it is a full system lock or just X since I
have no remote machine to ping it with, all I am able to do is force
reboot. It happened also with 2.2.15 I think as well as 2.2.16

What versions of X are you using? Someone reported lockups with the 4.0 r128
driver a long time ago and someone else suggested it might be bad interaction
between the graphics and sound devices.

There is a little wierditude with sound.  I've seen X grind to a halt on a
300MHz G3 with smaller buffer sizes - which may just be a manifestation of
the more general problem:

Quote from Geert "Richard Zidlicky found a bug that made the driver always
use 1 byte buffers, which gave very bad results on slow machines. It was
fixed in 2.3.x."

I'm on the case of back-porting the 2.3.xx dmasound stuff to 2.2.17pre7 -
but don't hold your breath (there's a lot of understanding to gain on my
part - because the sleep queue stuff changed).

Iain.


** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/