Re: Sound-related hard-locking

[Stas Sergeev <stssppnn@yahoo.com>]

Hello.

J. Solomon Kostelnik wrote:
> But last night the same thing happened when I was playing an
> MP3 with XMMS and then booted XDOS (without midid running). 
> As soon as the XDOS window opened, my machine hard-locked.
Hmm, doesn't look dosemu-related at a
first glance.

> vanilla 2.4.18 kernel
This may be a problem. Try 2.4.20 as
all the older kernels were easy to
lock up by dosemu, which is now fixed.

> Maestro 2E.
And what about video? It was reported
that xdos crashes X sometimes on some
video boards. Try running console
dosemu and see if the problem is still
there (apply the post-less video patch
at first).

> Is there a way I can log this before it crashes and get any meaningful
> data before it happens?
Try ALSA drivers with OSS emulation.
Maybe it is just an ESS OSS driver buggy
and the current dosemu sound code is
extremely evil to the underlaying drivers
and exposes all of their hidden bugs.
It locks up the Aureal drivers on my
machine after some minutes of playing,
but as that drivers are proprietary, this
can't be fixed.
Another usefull test would be to try
dosemu with a pc-speaker OSS driver. If
the problem goes away by this, then it
is definitely a problem of your OSS driver.
Because even if the dosemu sound code
is buggy, this doesn't excuse a kernel
lock-ups.