From: Keir Fraser <keir.fraser@eu.citrix.com>
To: Tim Deegan <Tim.Deegan@eu.citrix.com>,
"Zhang, Yang Z" <yang.z.zhang@intel.com>
Cc: "Xu, Jiajun" <jiajun.xu@intel.com>,
"Zhang, Jianwu" <jianwu.zhang@intel.com>,
"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Subject: Re: [PATCH] Re: cs:21768 causes guest spend more time on boot up
Date: Mon, 19 Jul 2010 12:46:25 +0100 [thread overview]
Message-ID: <C869F9A1.1AF93%keir.fraser@eu.citrix.com> (raw)
In-Reply-To: <20100719105548.GK13291@whitby.uk.xensource.com>
On 19/07/2010 11:55, "Tim Deegan" <Tim.Deegan@eu.citrix.com> wrote:
>> Yes, I am still looking into it. I think the address of the table is
>> not causing it, though, so it might take some time to find the real
>> cause.
>
> The hang turned out to be entirely unrelated to the SMBIOS tables; the
> xenbus client zeroes out teh xenstore ring entirely, and it looks like
> newer dom0 xenbus backends can't handle that, so:
What would it have to do with an in-kernel driver? Doesn't the comms page
only get looked at by [o]xenstored? In which case we could fix them.
-- Keir
> hvmloader: don't zero out the xenbus page.
> Not all xenbus backends accept that gracefully. Instead rely on the
> xenbus frontend in the guest being able to start up with non-zero ring
> offsets.
>
> Signed-off-by: Tim Deegan <Tim.Deegan@citrix.com>
next prev parent reply other threads:[~2010-07-19 11:46 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-15 8:07 cs:21768 causes guest spend more time on boot up Zhang, Yang Z
2010-07-15 9:48 ` Tim Deegan
2010-07-15 12:22 ` Tim Deegan
2010-07-15 15:14 ` Zhang, Yang Z
2010-07-15 15:20 ` Tim Deegan
2010-07-15 15:30 ` Zhang, Yang Z
2010-07-15 15:33 ` Tim Deegan
2010-07-19 10:55 ` [PATCH] " Tim Deegan
2010-07-19 11:46 ` Keir Fraser [this message]
2010-07-19 12:19 ` Tim Deegan
2010-07-19 12:24 ` Keir Fraser
2010-07-19 12:30 ` Keir Fraser
2010-07-20 10:38 ` [PATCH] v2 (Re: cs:21768 causes guest spend more time on boot up) Tim Deegan
2010-07-20 11:16 ` Keir Fraser
2010-07-22 9:01 ` Zhang, Jianwu
2010-07-22 13:20 ` Keir Fraser
2010-07-22 13:41 ` Tim Deegan
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