From: Segher Boessenkool <segher@kernel.crashing.org>
To: Nick Desaulniers <ndesaulniers@google.com>
Cc: Nicholas Piggin <npiggin@gmail.com>,
joel@jms.id.au, linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v2 5/5] powerpc: Remove -mno-sched-epilog
Date: Fri, 14 Sep 2018 20:04:11 -0500 [thread overview]
Message-ID: <20180915010410.GA23155@gate.crashing.org> (raw)
In-Reply-To: <CAKwvOdmsSbrw7oLZHWTseqxLocPmuXV=cnxSi2zskAmd9zKo0Q@mail.gmail.com>
On Fri, Sep 14, 2018 at 03:20:18PM -0700, Nick Desaulniers wrote:
> On Fri, Sep 14, 2018 at 2:56 PM Segher Boessenkool
> <segher@kernel.crashing.org> wrote:
> > On Sat, Sep 15, 2018 at 06:43:05AM +1000, Nicholas Piggin wrote:
> > > On Fri, 14 Sep 2018 11:03:38 -0700
> > > Nick Desaulniers <ndesaulniers@google.com> wrote:
> > >
> > > Sorry I forgot to cc you. This has links to some of the sched
> > > epilog bugs.
> > >
> > > https://marc.info/?l=linuxppc-embedded&m=153690223909654&w=2
>
> Cool, cc me on the thread if you'd like me to add my reviewed-by tag
> visibly on the thread.
>
> > PR44199 was backported to 4.4 and PR52828 is fixed in 4.8.
>
> Are those GCC versions? If so, what does that mean for the users of
> the many GCC releases between 4.4 and 4.8?
Yes, GCC bug 44199 was fixed in GCC version 4.4, etc. It of course also
is fixed in all later versions; so GCC releases between 4.4 and 4.8 have
the fix for PR44199 but not that for PR52828.
I didn't check exactly what 4.4.x versions have the fix, etc. I always
assume anyone using x.y.z uses the highest z available.
I don't know if those are the only fixes you need; those are the two
bugs mentioned in Nicholas' patch (that MARC link above).
Segher
prev parent reply other threads:[~2018-09-15 1:25 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-14 4:06 [PATCH v2 0/5] powerpc: Clang build fixes Joel Stanley
2018-09-14 4:06 ` [PATCH v2 1/5] powerpc/Makefiles: Fix clang/llvm build Joel Stanley
2018-09-14 17:41 ` Nick Desaulniers
2018-09-20 7:04 ` Joel Stanley
2018-09-14 4:06 ` [PATCH v2 2/5] powerpc/boot: Fix crt0.S syntax for clang Joel Stanley
2018-09-14 17:47 ` Nick Desaulniers
2018-09-14 21:08 ` Segher Boessenkool
2018-09-17 20:41 ` Nick Desaulniers
2018-09-18 1:08 ` Joel Stanley
2018-09-18 10:53 ` Michael Ellerman
2018-09-14 4:06 ` [PATCH v2 3/5] powerpc/boot: Ensure _zimage_start is a weak symbol Joel Stanley
2018-09-14 17:50 ` Nick Desaulniers
2018-09-20 4:21 ` [v2,3/5] " Michael Ellerman
2018-09-14 4:06 ` [PATCH v2 4/5] powerpc: Fix duplicate const clang warning in user access code Joel Stanley
2018-09-14 17:57 ` Nick Desaulniers
2018-09-19 7:45 ` Joel Stanley
2018-09-20 4:54 ` Christophe LEROY
2018-09-20 12:35 ` Michael Ellerman
2018-09-20 4:21 ` [v2, " Michael Ellerman
2018-09-14 4:06 ` [PATCH v2 5/5] powerpc: Remove -mno-sched-epilog Joel Stanley
2018-09-14 5:06 ` Nicholas Piggin
2018-09-14 18:03 ` Nick Desaulniers
2018-09-14 20:43 ` Nicholas Piggin
2018-09-14 21:18 ` Segher Boessenkool
2018-09-14 22:20 ` Nick Desaulniers
2018-09-15 1:04 ` Segher Boessenkool [this message]
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