From mboxrd@z Thu Jan  1 00:00:00 1970
From: Keir Fraser <keir@xensource.com>
Subject: Re: Dom0 Hang for large VCPU counts > PCPU
Date: Wed, 24 Jan 2007 19:44:28 +0000
Message-ID: <C1DD679C.7C7C%keir@xensource.com>
References: <BD262A443AD428499D90AF8368C4528D2A77FB@fmsmsx411.amr.corp.intel.com>
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To: "Zulauf, John" <john.zulauf@intel.com>, xen-devel@lists.xensource.com
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On 24/1/07 7:28 pm, "Zulauf, John" <john.zulauf@intel.com> wrote:

> Clarifying the initial report:
> 
> Host is 2 core (Core 2 Duo/965 chipset) box with VPCU=PCPU for Dom0.
> Issue occurs when attempting to start an HVM DomU with VCPU >= 24 (though we
> haven't checked 21-23 yet).
> The DomU never(apparently) starts, and Dom0 hard hangs. (i.e. not even the
> numlock key works)
> 
> Given that Dom0 hangs hard when this occurs, we don't have any ideas as to the
> exact cause of death.

Sorry, I misread the initial report.

So the HVM guest doesn't get as far as running hvmloader as far as you know?

Do the Xen debug keys work? (requires you to have a serial line connected)

 -- Keir