linux-kernel - KVM VM(windows xp) reseted when running geekbench for about 2 days

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Message-ID: <D3E216785288A145B7BC975F83A2ED103FE1E7A5@szxeml556-mbx.china.huawei.com>
Date:	Thu, 18 Apr 2013 12:00:49 +0000
From:	"Zhanghaoyu (A)" <haoyu.zhang@...wei.com>
To:	kvm list <kvm@...r.kernel.org>, "mst@...hat.com" <mst@...hat.com>,
	qemu-devel <qemu-devel@...gnu.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:	Luonengjun <luonengjun@...wei.com>,
	Zanghongyong <zanghongyong@...wei.com>,
	"Huangweidong (C)" <weidong.huang@...wei.com>,
	"Wangrui (K)" <moon.wangrui@...wei.com>
Subject: KVM VM(windows xp) reseted when running geekbench for about 2 days

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().

What causes the triple fault?

Thanks,
Zhang Haoyu
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