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Re: Bug#561891: Bug 561891: Is FTBFS for fio on SuperH (sh4) resolved?



Hi!

I am putting upstream author Jens Axboe on CC.

Am Donnerstag, 25. August 2011 schrieb Nobuhiro Iwamatsu:
> Hi,
[...]
> 
> 2011/8/3 Martin Steigerwald <ms@teamix.de>:
> > Hello Nobuhiro, Paul, hello Debian SuperH maintainers, hello Jens,
> > 
> > I am seeking information on the current status regarding
> > 
> > Please support sh4
> > http://bugs.debian.org/561891
> > 
> > and eventually help in resolving it if it has not already been
> > resolved.
> > 
> > When I am reading
> > 
> > http://buildd.debian-ports.org/status/package.php?p=fio&suite=unstabl
> > e
> > 
> > correctly, then fio 1.50-1 has been build 167d before on buildd
> > kongou.
> > 
> > So is this issue resolved?
> > 
> > If not, please offer help. There is a partial patch mentioned earlier
> > in the bug report.
> 
> By this method, we cannot support both SH4 and SH4A. When we build
> with machine of SH4A, a binary to work only in SH4A is built.
> Because Debian SH team are supporting sh4 and sh4a in one binary, this
> becomes the problem.
> And this is a problem peculiar to Debian. It will not become the
> problem in other distribution. (e.g., Gentoo)
> It is necessary to check whether you do not do it whether we support
> synco when we support both CPU's when we execute  *_barrier.
> I think that this has a big overhead.
> 
> I attached quick hack patch.

Jens, what do you think about such a patch? Please advice.

Nobuhiro, where do you think comes the big overhead from? In your patch 
you check once at beginning for sinco capability. Do you refer to the if 
statement you added in arch/arch-sh.h?

Ciao,
-- 
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA  B82F 991B EAAC A599 84C7


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