At Thu, 20 Nov 2003 15:17:31 +0300,
Sergey Vlasov wrote:
> 
> [1  <text/plain; us-ascii (7bit)>]
> On Thu, Nov 20, 2003 at 11:21:43AM +0100, Takashi Iwai wrote:
> > At Thu, 20 Nov 2003 00:42:33 -0500,
> > Carolyn and Eric Hathaway wrote:
> > > 
> > > I'm running RedHat 7.3 (RH kernel 2.4.20-20.7, gcc 2.96-113), and have a
> > > generic Aureal Vortex 1 card (au8820 chipset).  Compiling and installing
> > > the 1.0.0pre1 ALSA driver works fine, but if I do a 'modprobe
> > > snd-au8820', the computer locks up instantly (can't even ssh in from
> > > another computer).
> > > 
> > > Going back through recent CVS commits, I found that the problem is
> > > caused by the changes described in the following alsa-cvslog message:
> > > 
> > > http://sourceforge.net/mailarchive/message.php?msg_id=6552838
> > > 
> > > Specifically, the problem is caused by the changes Takashi made to
> > > au88x0.h and au88x0.c to eliminate calls to pci_request_regions() and
> > > pci_release_regions().  If I revert those two files to their previous
> > > versions, the driver compiles and works fine.  I'm not an ALSA driver
> > > guru, but I didn't see anything immediately wrong with the changes
> > > introduced by the above CVS commit that would cause such a drastic
> > > kernel error.  Perhaps someone more familiar with the code in question 
> > > could take another look at those changes?
> > 
> > hmm, i don't see where hits the bug, but if the older version really
> > works, i'm willing to revert to it.  it'd be anyway better to add two
> > wrapper functions for 2.2.
> 
> Probably this part had broken it (all addresses in hwread()/hwwrite()
> became wrong):
> 
> -       unsigned long *mmio;
> +       unsigned long mmio;

yes, i understand now.  the calculation of offset value had to be
changed, too.


Takashi


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