From: Michael Olbrich <m.olbrich@pengutronix.de>
To: ptxdist@pengutronix.de
Subject: Re: [ptxdist] OT: Re: Why the huge version discrepancy between OSELAS Toolchain and PTXdist?
Date: Tue, 16 Oct 2012 18:12:29 +0200 [thread overview]
Message-ID: <20121016161229.GP29469@pengutronix.de> (raw)
In-Reply-To: <20121005064140.GF23204@pengutronix.de>
On Fri, Oct 05, 2012 at 08:41:40AM +0200, Robert Schwebel wrote:
> On Tue, Oct 02, 2012 at 10:49:13PM +0200, Tim Sander wrote:
> > Sorry for the off topic post,
>
> Traditionally, OSELAS.Toolchain questions are on-topic on this list :-)
>
> > but as we are talkin toolchains over here: I've got the impression
> > that the latest stable release of the toolchain
> > OSELAS-Toolchain-2011.11.3 miscompiles on i.mx35?! I just tried to
> > compile some stuff and the kernel dumped strange lock error oopses and
This sounds more like the new compiler changed the timing and exposed a
kernel bug.
> > our user application had some strange behaviour i couldn't explain:
> > Some function calls where missed in an unconditional codepath.
> > OSELAS.Toolchain-2011.03.1 works but sometimes i just try newer
> > toolchains to shake out bugs in the code. So there is no urge on our
> > side. But as there have been reports on misscompiles on arm lkml with
> > gcc i thought i might bring that to attention?
The only thing I've head of is was an issue in the flexcan driver, and that
was one of the reasons for the v2011.11.3 release
> Do you have proper error messages, code examples or test cases?
>
> I havn't heared of problems with the arm11 toolchain recently. We
> currently have problems with floating point / NEON with the cortex-a8
> toolchain (sometimes floating point registers contain wrong values), but
> this is not debugged yet.
btw, this was a kernel bug.
Michael
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prev parent reply other threads:[~2012-10-16 16:12 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-02 12:37 [ptxdist] " Adrian.Baumgarth
2012-10-02 17:48 ` Robert Schwebel
2012-10-02 20:49 ` [ptxdist] OT: " Tim Sander
2012-10-05 6:41 ` Robert Schwebel
2012-10-16 16:12 ` Michael Olbrich [this message]
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