Re: [Xen-devel] xm list triggers shutdown refreshing

[Ewan Mellor <ewan@xxxxxxxxxxxxx>]

On Thu, Jan 04, 2007 at 07:30:42PM +0000, John Levon wrote:

> 
> xm list -> XendDomain:list_sorted() -> XendDomain:list() ->
> XendDomain:_refresh() -> XendDomainInfo:update(refresh = True)
> 
> Surely such non-modifying commands should not be altering state? Why
> aren't we passing in refresh = False in these cases?

Yes, you're right, we should.  There's a patch on its way.

> This is a nasty problem if (say) dumpCore fails: every time we try to xm
> list, then it will 'notice' that the domain is in the crashed state, try
> to dump core, fail and plop that error back to 'xm list'.

This is still a problem, regardless -- that function will be called every time
a domain starts or stops, so you will still get multiple attempts to dump
core.  Could you spin a patch to record the failure in the store, so that we
don't try and dump core again?

Ewan.

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