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[Xen-devel] RE: xen guest hang with TSC_DEADLINE

To: Christoph Egger <Christoph.Egger@xxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] RE: xen guest hang with TSC_DEADLINE
From: "Wei, Gang" <gang.wei@xxxxxxxxx>
Date: Sun, 19 Dec 2010 22:26:30 +0800
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Cc: Keir Fraser <Keir.Fraser@xxxxxxxxxxxxx>, "Wei, Gang" <gang.wei@xxxxxxxxx>
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Thread-topic: xen guest hang with TSC_DEADLINE
Christoph Egger wrote on 2010-12-17:
> 
> Hi,
> 
> c/s 22529 and 22530 cause a xen guest hang.
> 
> While "normal" guests like Linux and NetBSD boot fine I boot Xen
> itself as a xen guest for my nested virtualization.
> 
> When I do that then the guest dom0 hangs at boot when it tries to
> initialize the first vcpu.
> The bug is introduced somewhere in c/s 22529 and triggers with c/s 22530.

Can you enable apic_timer debug info var hvm_debug and give more serial port 
log around the guest dom0 hangs? I used to test xen guest, it works well expect 
that it boot a little bit slowly.

Jimmy



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