From: Paolo Bonzini <pbonzini@redhat.com>
To: Stas Sergeev <stsp@list.ru>, kvm@vger.kernel.org
Cc: Stas Sergeev <stsp@users.sourceforge.net>,
Linux kernel <linux-kernel@vger.kernel.org>
Subject: Re: kvm: repeatable kernel crash with Athlon II cpu
Date: Tue, 29 Mar 2016 17:37:25 +0200 [thread overview]
Message-ID: <56FAA135.1080600@redhat.com> (raw)
In-Reply-To: <56FA9DB1.4060704@list.ru>
On 29/03/2016 17:22, Stas Sergeev wrote:
> I've been running dosemu and found out that it hangs
> or reboots one of my PCs. This happens with any fedora-23
> kernels and hand-compiled kernels. The latest I tried, were:
> 4.4.6-300.fc23.x86_64
> 4.5.0-rc6
Can you check if 4.3 works?
> I tried to put the debug printfs into dosemu, and it seems
> the crash happens on KVM_RUN ioctl, but of course the one
> can't say for sure when an instant reboot happens. Yet if
> I disable the KVM use, or try on a different CPU, there is
> no crash too, so I am pretty sure it is the KVM bug.
Yes, that's likely.
> Hope someone can find such an old CPU an reproduce the problem.
> Please let me know what info should I provide or what debugging
> to do to help getting that fixed.
Do you have experience bisecting the kernel? If so perhaps you can try
doing that.
Paolo
next prev parent reply other threads:[~2016-03-29 15:37 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-29 15:22 kvm: repeatable kernel crash with Athlon II cpu Stas Sergeev
2016-03-29 15:37 ` Paolo Bonzini [this message]
2016-03-29 16:08 ` Stas Sergeev
2016-03-29 16:27 ` Paolo Bonzini
2016-03-29 17:10 ` Stas Sergeev
2016-03-29 17:13 ` Paolo Bonzini
2016-03-30 13:28 ` Stas Sergeev
2016-03-30 14:10 ` Paolo Bonzini
2016-03-31 13:24 ` Stas Sergeev
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