From: Joerg Roedel <joro@8bytes.org>
To: Borislav Petkov <bp@alien8.de>
Cc: Peter Zijlstra <peterz@infradead.org>,
Stefan Bader <stefan.bader@canonical.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
kvm@vger.kernel.org, Marcelo Tosatti <mtosatti@redhat.com>,
MASAO TAKAHASHI <masao-takahashi@kanno.co.jp>
Subject: Re: Another preempt folding issue?
Date: Wed, 12 Feb 2014 12:12:05 +0100 [thread overview]
Message-ID: <20140212111205.GE23709@8bytes.org> (raw)
In-Reply-To: <20140212104017.GA5121@pd.tnic>
On Wed, Feb 12, 2014 at 11:40:17AM +0100, Borislav Petkov wrote:
> Also what I'm wondering about and what's not clear from Stefan's reply
> is whether this is purely a 32-bit issue, i.e. a 32-bit host running a
> 64-bit qemu running a 32-bit iso or what is it?
>
> Or do we have reports for both 32-bit and 64-bit hosts?
As I understand it, the problem reproduces only on a 32bit host, which
also limits the guests to 32bit, at least when ran with KVM. This is
true even if a x86-64 qemu is used. This is also independent on whether
the host-cpu supports 64bit or not.
Joerg
prev parent reply other threads:[~2014-02-12 11:12 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-11 18:34 Another preempt folding issue? Stefan Bader
2014-02-11 19:45 ` Peter Zijlstra
2014-02-12 8:20 ` Stefan Bader
2014-02-12 10:37 ` Peter Zijlstra
2014-02-12 10:40 ` Borislav Petkov
2014-02-12 11:09 ` Stefan Bader
2014-02-12 11:54 ` Peter Zijlstra
2014-02-13 17:00 ` Stefan Bader
2014-02-13 17:38 ` Peter Zijlstra
2014-02-13 18:03 ` Stefan Bader
2014-02-13 18:26 ` Peter Zijlstra
2014-02-14 13:34 ` Borislav Petkov
2014-02-14 13:40 ` Stefan Bader
2014-02-14 14:24 ` Stefan Bader
2014-02-14 14:47 ` Borislav Petkov
2014-02-14 17:02 ` Stefan Bader
2014-02-14 17:21 ` Peter Zijlstra
2014-02-20 15:38 ` Stefan Bader
2014-02-20 15:50 ` Peter Zijlstra
2014-03-24 17:39 ` Paolo Bonzini
2014-03-25 8:23 ` Stefan Bader
2014-02-14 17:33 ` Borislav Petkov
2014-02-14 18:23 ` Stefan Bader
2014-02-14 19:03 ` Stefan Bader
2014-02-14 15:21 ` Another preempt folding issue? (maybe bisect) Borislav Petkov
2014-02-14 15:28 ` Stefan Bader
2014-02-14 15:44 ` Borislav Petkov
2014-02-14 16:21 ` Peter Zijlstra
2014-02-13 18:25 ` Another preempt folding issue? Peter Zijlstra
2014-02-14 10:55 ` Stefan Bader
2014-02-14 13:17 ` Peter Zijlstra
2014-02-14 11:24 ` Stefan Bader
2014-02-14 11:49 ` Peter Zijlstra
2014-02-12 11:12 ` Joerg Roedel [this message]
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