Re: [Xen-ia64-devel] RE: [Xen-devel] Help? Red Hat fails, Suse/Debian both work fine

[Alex Williamson <alex.williamson@xxxxxx>]

On Thu, 2006-03-02 at 18:41 +0000, Ewan Mellor wrote:
> 
> These are requests from the xenbus driver to create watches to monitor for new
> devices being created.  That presumably means that either your xenbus driver
> is fubar'd, or the mmap'd page is bust, as discussed earlier.
> 
> The requests that you are seeing are from xenconsoled and xend, each of which
> is using the unix domain socket to talk to the store, not the shared page.

  If I dump the xsd_kva page using mmap from another app, there are a
few entries made:

0000: 01 00 00 00 00 00 00 00 00 00 00 00 07 00 00 00
0010: 64 65 76 69 63 65 00 00 00 00 00 00 00 00 00 00
0020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
...
0400: 10 00 00 00 00 00 00 00 00 00 00 00 07 00 00 00
0410: 45 4e 4f 45 4e 54 00 00 00 00 00 00 00 00 00 00
0420: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
...
0800: 17 00 00 00 17 00 00 00 00 00 00 00 17 00 00 00

As you indicate, lots of output in the xenstored-trace file, but hardly
anything here.  We are getting some transactions in there though, so
maybe we're dealing with a memory ordering issue.  Thanks,

        Alex

-- 
Alex Williamson                             HP Linux & Open Source Lab


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