[lug] audio dies after applying latest redhat kernel

[D. Stimits]

Hugh Brown wrote:

> The modules are precompiled for the architecture and I wasn't using
> alsa.  This is the first time in several upgrades that this has happened
> (I run a stock redhat kernel).

I think that if the order of binary interfaces to various modules 
changes (the offset into the kernel loading system), it breaks any 
module from that change point and further down the offset, regardless of 
whether it is compiled for the same architecture. And of course header 
changes that alter the interface will also do this. So if for example 
something related to your sound was looking for offset 0x123456df, but 
the interface was now at 0x123456ab, strange things could happen to that 
module and anything looking at a longer offset. Keeping the architecture 
doesn't help in all cases. Could be wrong though.

D. Stimits, stimits AT attbi.com

>
> Hugh
>
> On Mon, 2002-10-21 at 16:26, D. Stimits wrote:
>
> >Hugh Brown wrote:
> >
> >
> >>FYI,
> >>
> >>I updated all my packages against those in the redhat updates dir on
> >>their ftp server.
> >>
> >>After rebooting because of upgrading to the 2.4.18-17 kernel from the
> >>2.4.18-10 kernel, my audio died.  The modules loaded fine, but
> >>everything that tried to play would either play and nothing would come
> >>out of the speakers (e.g. ogg123), or they would block (xmms).  I
> >>downgraded and audio works fine again.
> >>
> >
> >Anything that depends on the kernel (basically hardware drivers and
> >modules) has to be recompiled after reconfiguring or altering the
> >kernel, with a few exceptions. If you use ALSA, you can be doubly sure
> >that recompiling is necessary, where the kernel is configured to work
> >with it, and then the ALSA itself would have to be recompiled.
> >
> >D. Stimits, stimits AT attbi.com
> >
> >_______________________________________________
> >Web Page:  http://lug.boulder.co.us
> >Mailing List: http://lists.lug.boulder.co.us/mailman/listinfo/lug
> >Join us on IRC: lug.boulder.co.us port=6667 channel=#colug
>
>
>
> _______________________________________________
> Web Page:  http://lug.boulder.co.us
> Mailing List: http://lists.lug.boulder.co.us/mailman/listinfo/lug
> Join us on IRC: lug.boulder.co.us port=6667 channel=#colug
>