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Re: [Xen-devel] ANOUNCEMENT: Debian packages for xen built on 2004-08-19

To: Ian Pratt <Ian.Pratt@xxxxxxxxxxxx>
Subject: Re: [Xen-devel] ANOUNCEMENT: Debian packages for xen built on 2004-08-19 bk source
From: Ian Pratt <Ian.Pratt@xxxxxxxxxxxx>
Date: Fri, 27 Aug 2004 03:52:56 +0100
Cc: Rik van Riel <riel@xxxxxxxxxx>, Brian Wolfe <brianw@xxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxxx, Ian.Pratt@xxxxxxxxxxxx
Delivery-date: Fri, 27 Aug 2004 03:55:34 +0100
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In-reply-to: Your message of "Thu, 26 Aug 2004 13:47:48 BST." <E1C0JfR-0007X7-00@xxxxxxxxxxxxxxxxx>
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> > Of course, vmstat crashes with a divide by zero too,
> > since xen guests don't increment idle time and vmstat
> > ends up doing a divide by zero.  I'll figure out how
> > Xen timing works and will post a patch, if I've got
> > the time this week.
> 
> In 2.6, it looks like we're not accounting time spent in the idle
> task, which is a bug (it works OK under 2.4).

I believe this to now be fixed: the test in ptrace.h to determine
whether we were in user or system mode was broken as it was
looking for ring 0 rather than ring 1.

FC2 vmstat now no longer segfaults, at least for me.

Ian


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