Re: [2.6.19.1] ESP regression ?

["BERTRAND Joël" <joel.bertrand@systella.fr>]

Jurij Smakov a écrit :
> On Fri, Jan 05, 2007 at 01:35:05PM -0600, Tom 'spot' Callaway wrote:
>> Building the SCSI and esp components into the kernel does not change the
>> results, it still doesn't work on 2.6.18.1+ on sparc32.
>>
>> If anyone has a working sparc32 kernel config that works on a sparc32
>> w/esp, please post it here.
> 
> Tom,
> 
> The 2.6.18 kernel (it is actually 2.6.18.5 plus some patches) we 
> currently have in Debian works fine on my SS20. You can find the 
> config, kernel, and matching initrd at
> 
> http://www.wooyd.org/sparc/
> 
> The only patch which touches anything in arch/sparc is also included 
> there (bus-id-size.patch), other patches may be viewed at
> 
> http://svn.debian.org/wsvn/kernel/dists/sid/linux-2.6/debian/patches/
> 
> One esp problem I'm aware of is broken CD-ROM support, the bug report 
> with some discussion is available at
> 
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug93894
> 
> I've got as far as figuring out that this problem seems to be due to a 
> miscompilation with gcc 4.1. If the kernel is built with gcc 4.0, 
> CD-ROM actually works again, so it might be some tool chain 
> regression. At this point, however, I don't really have time to track 
> it down.

	For information, the 2.6.19.1 runs better when it is built with 
gcc-4.1. I have tried to rebuild this kernel with gcc-4.0 and I can see 
several deadlocks.

	Regards,

	JKB