cdrecord no workie after upgade to 2.6.10

[Collins Richey]

[ snips ]

On Fri, 31 Dec 2004 18:51:12 -0800, Net Llama! <netllama at linux-sxs.org> wrote:
> On 12/31/2004 06:34 PM, Kurt Wall wrote:
> > On Fri, Dec 31, 2004 at 06:10:33PM -0800, Net Llama! took 34 lines to write:
> >
> >>Up until 2 days ago I was running a 2.6.7 kernel that I built, and life
> >>was good.
> >
> >
> > [upgrade to 2.6.10 == life is not good]
> >
> >
> >>Since upgrading to 2.6.10 (that I built) performance has been horrible,
> >>and I can no longer burn CDs with cdrecord.  
> >
> > There were several threads about cdrecord hanging on LKML, but I don't
> > recall seeing a definitive root cause analysis or a solution.
> 
> That's interesting.  I just googled like crazy and didn't find anything.
>   Do you have any references that you can point me to, so that i can at
> least learn whether its just me or if this is a real issue?
> 

> >
> > Hm. 2.6.9 worked okay. We have the same versions of cdrecord, but $DEITY
> > only knows how (if) Red Hat hacked up the version they ship. Interestingly,
> 
> I'm sure that's a good possibility, but at the same time i'm thinking
> this isn't a RH-ism. *shrug*
> 
> > cdrecord's author suggests using 2.4 or Solaris:
> 
> Jorg has been saying that for years.  Actually, i'm surprised that he's
> stopped telling people not to use Linux at all.  For the longest time he
> was openly bad mouthing linux in general and only advocating cdrecord
> for other UNIXes.
> 
> > $ cdrecord --version
> > Cdrecord-Clone 2.01 (i686-pc-linux-gnu) Copyright (C) 1995-2004 J?rg Schilling
> > cdrecord: Warning: Running on Linux-2.6.9
> > cdrecord: There are unsettled issues with Linux-2.5 and newer.
> > cdrecord: If you have unexpected problems, please try Linux-2.4 or Solaris.
> > cdrecord: Warning: Linux-2.6.8 introduced incompatible interface changes.
> > cdrecord: Warning: SCSI transport does no longer work for suid root programs.
> > cdrecord: Warning: if cdrecord fails, try to run it from a root account.
> 

On my version(s), he also complains that /dev/cdrdevice support has
now been added, and his beloved scsi-emulation crap is gone.

> [root at hal root]# cdrecord -version
> Cdrecord-Clone 2.01-dvd (i686-pc-linux-gnu) Copyright (C) 1995-2004
> J??rg Schilling
> Note: This version is an unofficial (modified) version with DVD support
> Note: and therefore may have bugs that are not present in the original.
> Note: Please send bug reports or support requests to
> http://bugzilla.redhat.com/bugzilla
> Note: The author of cdrecord should not be bothered with problems in
> this version.
> 

<just a little rant on>
1. I haven't tried 2.6.10 (and won't for a while after your reports).
2. I had a hellacious time getting cdrecord to work at all on > 2.6.7.
In my case, it turned out that cdrecord was not smart enough (that's
an understatement! - totally hung system) to use DMA (is this the 21st
century or what?). Once I turned off DMA for the recorder, problem
solved.
3. I'm underwhelmed by Jorg's approach to kernel development, which
seems to be "This old dog is not going to learn any new tricks." Don't
expect me to adapt, just use some other operating system.
4. Sigh, why aren't there any alternatives? If you want a browser,
there's a plethora.
</rant off>
-- 
 Collins