[paranoia] major hurdle - total lockup

[Marc Williams]

Well, after a couple of days of sleuthing, I think I finally was able to
track down a solution for my lockups.

Short answer: I installed an hdparm for my hda as well as my hdc like
this:
hdparm -d1 -X34 /dev/hda
hdparm -d0 -X34 /dev/hdc

Longer answer: When I would poke into my BIOS and shut off any udma for
all ATA devices, I was able to extend the time before a freeze to
several songs or sometimes even a whole CD.  But it would eventually
freeze also.  So I figured I was on the right track.  And I've got a VIA
chipset to possibly complicate matters.  They can be the source for
incompatibilities.  Anyway, after playing with hdparm settings for hdc
and BIOS settings 'til I was ready to scream, it occured to me that
maybe my hda was the source of some of my problems which eventually led
to the hdparm entries above.

Maybe this'll help someone else too.

<p>On Sat, 2002-01-19 at 11:25, Marc Williams wrote:
> Rats.  And I really was crossing my fingers too.  Didn't work.  Same
> results as before.  (I keep rotating my CDs just to insure it's not a
> bad CD too).
> 
> I anxiously await further assistance from you Doug or anyone else.  I'm
> stumped.
> 
> Marc
> 
> 
> On Sat, 2002-01-19 at 09:58, Douglas Gilbert wrote:
> > Marc Williams wrote:
> > > 
> > > Thanks Doug.  Would your advice still hold if I told you that I just
> > > tried out cdda2wav with the following command and it completed
> > > correctly?:
> > > 
> > > cdda2wav -B -t 1+3 -I cooked_ioctl -D /dev/cdrom
> > >
> > > Logically, I would then ask why cdda2wav seems to work but not
> > > cdparanoia?  I want to use cdparanoia since a couple of front ends I'd
> > > like to use require it
> > 
> > There is a weakness in the IDE driver in the lk 2.4
> > series. It tries to autotune for maximum IDE bus
> > throughput (which means using DMA aggressively).
> > However if something goes wrong during a DMA transfer
> > then it is unable to recover gracefully.
> > 
> > You do not need 33, 66, 100 or 133 MB/sec on your IDE
> > bus to talk to a cdrom, even one that claims to
> > do "x50". BTW "x1" is about 150 KB/sec.
> > 
> > > And to address your other statement, my /dev/cdrom is pointing to
> > > /dev/hdc so I assume I would merely substitute accordingly?
> > 
> > Yes, try either:
> >      hdparm -d0 -c1 /dev/hdc
> >      hdparm -d 1 -X 34 /dev/hdc
> > 
> 
> 
> 
> --- >8 ----
> List archives:  http://www.xiph.org/archives/
> Paranoia homepage: http://www.xiph.org/paranoia/
> To unsubscribe from this list, send a message to 'paranoia-request at xiph.org'
> containing only the word 'unsubscribe' in the body.  No subject is needed.
> Unsubscribe messages sent to the list will be ignored/filtered.
> 

<p><p>--- >8 ----
List archives:  http://www.xiph.org/archives/
Paranoia homepage: http://www.xiph.org/paranoia/
To unsubscribe from this list, send a message to 'paranoia-request at xiph.org'
containing only the word 'unsubscribe' in the body.  No subject is needed.
Unsubscribe messages sent to the list will be ignored/filtered.