[parisc-linux] re: new cd-images any time soon?

[parisc-linux] re: new cd-images any time soon?

[John Marvin]

>
> Albert & group,
>
> I have not given up on the "loop on LDCW" problem you have found, but...
>
> It is not likely that I will have the changes ready in time for the next iso.
>
> I do have the LDCW target word being put into .o files with proper alignment,
> with or without initialization.
> I DO NOT have the change cleanly intigrated into the source.
>
> Mike

Mike,

We already use an align attribute for the lock word, so the lock word is
automatically aligned properly for global and static storage.  So the
proper alignment for global and static values should already be the case
for .o files.  The problem is that the compiler ignores the align
attribute for automatic storage (i.e. values on the stack). The only
time I saw problems after the kernel was fixed is when a ldcw was done
on a non properly aligned lockword on the stack.

Alan Modra has produced a gcc patch that should fix the problem for
automatic storage.  I'm not sure what the status of getting that patch
into the distribution is.  I sent the patch to Randolph Chung with the
hope that he could at least test the patch to make sure that it didn't
break glibc.  Once gcc is patched, a new glibc needs to be built with it,
and we have only recently made significant progress towards that goal
due to a variety of recent bug fixes.

So anyway, it is possible that the fix will be in the 0.9.3 iso, but it
is not guaranteed. The good news is that we do have a known fix, and
it is the most desirable solution of the various ones I proposed.

John Marvin
jsm@fc.hp.com

Re: [parisc-linux] re: new cd-images any time soon?

[Michael S.Zick]

On Thursday 25 October 2001 08:25 am, John Marvin wrote:
> Once gcc is patched, a new glibc needs to be built with it,
> and we have only recently made significant progress towards that goal
> due to a variety of recent bug fixes.

Great! - I'll wait to see how that impacts what I have been working on.
>
> So anyway, it is possible that the fix will be in the 0.9.3 iso, but it
> is not guaranteed. The good news is that we do have a known fix, and
> it is the most desirable solution of the various ones I proposed.
>
I was only speaking about what I have been working on being ready in time.  
Of course, having a general fix would be better than any minor tweak I could 
have come up with. 

I'll just hold off any work for now.

Mike

Re: [parisc-linux] re: new cd-images any time soon?

[Randolph Chung]

> Alan Modra has produced a gcc patch that should fix the problem for
> automatic storage.  I'm not sure what the status of getting that patch
> into the distribution is.  I sent the patch to Randolph Chung with the
> hope that he could at least test the patch to make sure that it didn't
> break glibc.

We are still having a lot of problems with toolchain/glibc, so I haven't
been able to build glibc with a patched gcc yet. On the good side I had
compiled other stuff using the patched gcc with no ill side-effects,
so.... 

I'm going to be away for a few days; I will forward the patch to
Debian's gcc maintainer for inclusion in the new gcc release. It looks
like we might have more work to do before we get a new glibc though.

randolph
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