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Re: HPPA and lenny

dann frazier wrote:
> On Wed, Dec 17, 2008 at 11:08:59PM +0100, Helge Deller wrote:
>> dann frazier wrote:
>>> On Mon, Dec 15, 2008 at 08:30:25PM +0100, Peter Palfrader wrote:
>>>> Helge Deller schrieb am Montag, dem 15. Dezember 2008:
>>>>> Matt Taggart wrote:
>>>>>> The real problem is that no one is fixing hppa kernel problems. I don't see 
>>>>>> much point in keeping the archive up to date if nobody is working on fixing 
>>>>>> the kernel (not currently and I suspect not in the future either). This has 
>>>>>> been stated on the debian-hppa list several times over a long period and in 
>>>>>> that time no one (AFAIK) has stepped up to work on it.
>>>>> Matt,
>>>>> We have done quite some bugfixing in the last weeks and upstream
>>>>> 2.6.28-rcX works pretty well now.
>>>> What does that mean for the lenny 2.6.26 kernel?
>>> Well, obviously when there's a fix upstream we will look at
>>> backporting this into 2.6.26.
>> I've just posted a short analysis of the problem and a proposed kernel
>> patch in:
>> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=478717#118
>> It fixes the kernel crashes for me and should help to do further
>> analysis without crashing the running linux kernel.
>> The patch (and the problem) needs further discussion on parisc-linux
>> kernel mailing list though...
> Thanks Helge! Just in case its relevant to your investigation, note
> that this is also an issue when using a pure NPTL environment.

Just wanted to give a short update -
After quite some debugging by various parisc kernel developers, it seems
that buggy TLB flushing code was causing the ruby1.9 build failures /
kernel crashes and we developed a workaround for now:

Patch in parisc git tree:

I assume this patch solves quite some other issues which were seen as well.

It would be really nice, if this (preliminary) patch could be included
in the debian parisc kernel soon...

I'll update bugzilla 478717 as well.


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