From: Gleb Natapov <gleb@redhat.com>
To: "Zhanghaoyu (A)" <haoyu.zhang@huawei.com>
Cc: kvm list <kvm@vger.kernel.org>, "mst@redhat.com" <mst@redhat.com>,
qemu-devel <qemu-devel@nongnu.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Luonengjun <luonengjun@huawei.com>,
Zanghongyong <zanghongyong@huawei.com>,
"Huangweidong (C)" <weidong.huang@huawei.com>,
"Wangrui (K)" <moon.wangrui@huawei.com>
Subject: Re: KVM VM(windows xp) reseted when running geekbench for about 2 days
Date: Thu, 18 Apr 2013 15:55:32 +0300 [thread overview]
Message-ID: <20130418125532.GW8997@redhat.com> (raw)
In-Reply-To: <D3E216785288A145B7BC975F83A2ED103FE1E7A5@szxeml556-mbx.china.huawei.com>
On Thu, Apr 18, 2013 at 12:00:49PM +0000, Zhanghaoyu (A) wrote:
> I start 10 VMs(windows xp), then running geekbench tool on them, about 2 days, one of them was reset,
> I found the reset operation is done by
> int kvm_cpu_exec(CPUArchState *env)
> {
> ...
> switch (run->exit_reason)
> ...
> case KVM_EXIT_SHUTDOWN:
> DPRINTF("shutdown\n");
> qemu_system_reset_request();
> ret = EXCP_INTERRUPT;
> break;
> ...
> }
>
> KVM_EXIT_SHUTDOWN exit reason was set previously in triple fault handle handle_triple_fault().
>
How do you know that reset was done here? This is not the only place
where qemu_system_reset_request() is called.
> What causes the triple fault?
>
Are you asking what is triple fault or why it happened in your case?
For the former see here: http://en.wikipedia.org/wiki/Triple_fault
For the later it is to late to tell after VM reset. You can run QEMU with
-no-reboot -no-shutdown. VM will pause instead of rebooting and then you
can examine what is going on.
--
Gleb.
WARNING: multiple messages have this Message-ID (diff)
From: Gleb Natapov <gleb@redhat.com>
To: "Zhanghaoyu (A)" <haoyu.zhang@huawei.com>
Cc: "Huangweidong (C)" <weidong.huang@huawei.com>,
kvm list <kvm@vger.kernel.org>, "mst@redhat.com" <mst@redhat.com>,
Luonengjun <luonengjun@huawei.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
qemu-devel <qemu-devel@nongnu.org>,
Zanghongyong <zanghongyong@huawei.com>,
"Wangrui (K)" <moon.wangrui@huawei.com>
Subject: Re: [Qemu-devel] KVM VM(windows xp) reseted when running geekbench for about 2 days
Date: Thu, 18 Apr 2013 15:55:32 +0300 [thread overview]
Message-ID: <20130418125532.GW8997@redhat.com> (raw)
In-Reply-To: <D3E216785288A145B7BC975F83A2ED103FE1E7A5@szxeml556-mbx.china.huawei.com>
On Thu, Apr 18, 2013 at 12:00:49PM +0000, Zhanghaoyu (A) wrote:
> I start 10 VMs(windows xp), then running geekbench tool on them, about 2 days, one of them was reset,
> I found the reset operation is done by
> int kvm_cpu_exec(CPUArchState *env)
> {
> ...
> switch (run->exit_reason)
> ...
> case KVM_EXIT_SHUTDOWN:
> DPRINTF("shutdown\n");
> qemu_system_reset_request();
> ret = EXCP_INTERRUPT;
> break;
> ...
> }
>
> KVM_EXIT_SHUTDOWN exit reason was set previously in triple fault handle handle_triple_fault().
>
How do you know that reset was done here? This is not the only place
where qemu_system_reset_request() is called.
> What causes the triple fault?
>
Are you asking what is triple fault or why it happened in your case?
For the former see here: http://en.wikipedia.org/wiki/Triple_fault
For the later it is to late to tell after VM reset. You can run QEMU with
-no-reboot -no-shutdown. VM will pause instead of rebooting and then you
can examine what is going on.
--
Gleb.
next prev parent reply other threads:[~2013-04-18 12:55 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-18 12:00 KVM VM(windows xp) reseted when running geekbench for about 2 days Zhanghaoyu (A)
2013-04-18 12:00 ` [Qemu-devel] " Zhanghaoyu (A)
2013-04-18 12:55 ` Gleb Natapov [this message]
2013-04-18 12:55 ` Gleb Natapov
2013-04-18 13:25 ` Yan Vugenfirer
2013-04-18 13:25 ` [Qemu-devel] " Yan Vugenfirer
2013-04-19 1:05 ` Zhanghaoyu (A)
2013-04-19 1:05 ` [Qemu-devel] " Zhanghaoyu (A)
2013-04-19 11:42 ` Gleb Natapov
2013-04-19 11:42 ` [Qemu-devel] " Gleb Natapov
2013-04-19 11:42 ` Gleb Natapov
2013-04-23 8:21 ` Zhanghaoyu (A)
2013-04-23 8:21 ` [Qemu-devel] " Zhanghaoyu (A)
2013-04-23 8:36 ` Gleb Natapov
2013-04-23 8:36 ` [Qemu-devel] " Gleb Natapov
2013-04-25 9:35 ` Zhanghaoyu (A)
2013-04-25 9:35 ` [Qemu-devel] " Zhanghaoyu (A)
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