linux-kernel - Re: __schedule #DF splat

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Message-ID: <53AD586A.40900@redhat.com>
Date:	Fri, 27 Jun 2014 13:41:30 +0200
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	Borislav Petkov <bp@...en8.de>, lkml <linux-kernel@...r.kernel.org>
CC:	Peter Zijlstra <peterz@...radead.org>,
	Steven Rostedt <rostedt@...dmis.org>, x86-ml <x86@...nel.org>,
	kvm@...r.kernel.org, Jörg Rödel <joro@...tes.org>
Subject: Re: __schedule #DF splat

Il 27/06/2014 12:18, Borislav Petkov ha scritto:
> Joerg says I should bisect but I'm busy with other stuff. If people are
> interested in chasing this further, I could free up some time to do
> so...

Please first try "-M pc-1.7" on the 2.0 QEMU.  If it fails, please do 
bisect it.  A QEMU bisection between one release only usually takes only 
half an hour or so for me.

I use

../configure --target-list=x86_64-softmmu && make distclean &&
../configure --target-list=x86_64-softmmu &&
make -j8 subdir-x86_64-softmmu

Until it's below 50 commits.  After that point just "make -j8 
subdir-x86_64-softmmu" should do.  This ensures that build system 
changes do not bite you as you move back and forth in time.

Thanks!

Paolo
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