RE: [Xen-users] Xen networking fails after long uptime

["Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>]

> __alloc_pages: 0-order allocation failed (gfp=0xf0/0)
> 
> Uptime for the DomU is around 130-160 days in most cases.
> 
> I am using a fairly old version of Xen (around 2.0.1 I 
> think): is there any obvious problem that has been fixed in 
> the past months that would resolve this issue? (I would have 
> to be fairly sure of concrete improvements before upgrading 
> these machines as if anything goes wrong I will have to hop 
> in my car and driver for hours!)

There's been a lot of fixes since 2.0.1, so you'd be well advised to
upgrade (I'd even go to 2.0-testing).

It might be worth doing a cat /proc/slabinfo in one of your stuck domU's
to see if there's anything obviously leaking. 

You may get some value just upgrading the domU and leaving the dom0 and
Xen as-is, but I'd generally advise upgrading everything together.

Ian

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