From: Josh Poimboeuf <jpoimboe@redhat.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Michal Marek <mmarek@suse.cz>, Ingo Molnar <mingo@kernel.org>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: new objtool warnings again...
Date: Fri, 23 Sep 2016 16:16:55 -0500 [thread overview]
Message-ID: <20160923211655.d2ho4aguyzgvbl3t@treble> (raw)
In-Reply-To: <CA+55aFw36rOP_A=ctSu9AFrxzN-QQE4einLr40tdxgPPAUtiTA@mail.gmail.com>
On Fri, Sep 23, 2016 at 02:06:03PM -0700, Linus Torvalds wrote:
> On Fri, Sep 23, 2016 at 1:33 PM, Linus Torvalds
> <torvalds@linux-foundation.org> wrote:
> >
> > So this code is clearly missing the magic to tell gcc that the asm
> > needs a frame pointer.
>
> Independently of that, the objtool build seems racy or somehow
> fragile. I've now twice gotten into a situation where I end up getting
>
> cat: /home/torvalds/v2.6/linux/tools/objtool/.fixdep.o.d: No such
> file or directory
> make[4]: *** [/home/torvalds/v2.6/linux/tools/objtool/fixdep.o] Error 1
> make[3]: *** [/home/torvalds/v2.6/linux/tools/objtool/fixdep-in.o] Error 2
> make[2]: *** [fixdep] Error 2
> make[1]: *** [objtool] Error 2
> make: *** [tools/objtool] Error 2
>
> with just the right timings, and then ccache ends up remembering that
> as a build failure and causing that to be "sticky" even across "git
> clean -dqfx" builds (and the "ccache -C" clears it).
>
> Adding Michal to the cc, in case he can see what the problem is.
I just started seeing this problem today. I suspect it's a ccache
issue, since it only showed up after ccache was updated. I "fixed" it
with:
yum downgrade ccache
I'll open a bug...
--
Josh
next prev parent reply other threads:[~2016-09-23 21:17 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-23 20:33 Linus Torvalds
2016-09-23 21:06 ` Linus Torvalds
2016-09-23 21:16 ` Josh Poimboeuf [this message]
2016-09-23 21:19 ` Linus Torvalds
2016-09-26 16:49 ` Arnaldo Carvalho de Melo
2016-09-27 17:58 ` Josh Poimboeuf
2016-09-23 21:14 ` Josh Poimboeuf
2016-09-23 21:18 ` Linus Torvalds
2016-09-23 21:49 ` [PATCH] x86/alternatives: add stack frame dependency to alternative_call_2() Josh Poimboeuf
2016-09-23 23:23 ` Linus Torvalds
2016-09-24 16:28 ` [tip:x86/asm] x86/alternatives: Add " tip-bot for Josh Poimboeuf
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