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Re: [Xen-devel] VMX status report. Xen: #17501 & Xen0: #524 -- two new i

To: "Li, Haicheng" <haicheng.li@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] VMX status report. Xen: #17501 & Xen0: #524 -- two new issues
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Wed, 23 Apr 2008 13:18:42 +0100
Cc: Kevin Wolf <kwolf@xxxxxxx>
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Thread-topic: [Xen-devel] VMX status report. Xen: #17501 & Xen0: #524 -- two new issues
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On 23/4/08 10:59, "Li, Haicheng" <haicheng.li@xxxxxxxxx> wrote:

> 1. Fail to create any HVM guest on IA32PAE host
> http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1221

Looks like it is due to Kevin Wolf's changeset 17499. Your attempt to go
back to older tools obviously didn't work -- the backtrace in xend.log comes
from a line introduced by c/s 17499.

> 2. Dom0 hangs at booting if loglvl and guest_loglvl are set as all.
> http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1222

Well, the obvious answer is to print less drivel in the VT-d code. There's
no reason at all to print so much useless text, even in a debug build.

Actually a second point is that we should drop characters from the 16kB
serial buffer rather than spin in the hypervisor waiting for the buffer to
empty. I'll implement that.

 -- Keir

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