[Xen-devel] Re: Linux 2.6 guest BUG().

[Matt Ayres <matta@xxxxxxxxxxxx>]

Keir Fraser wrote:
> On 1 Feb 2006, at 16:08, Matt Ayres wrote:
>
> > I can provide dozens of BUG()'s if required.  It just happened again 
> > on a host in dom0 to the sshd daemon and now that port is locked 
> > (netstat -nlp reports "-" as the process name).  I am able to access 
> > the server via the console.
> > I assume you mean Xen's memory usage. I am showing 141MB free out of 
> > 8112MB total.  Our scripts to add accounts don't allow adding more 
> > accounts then there is memory for, we actually leave about 128MB as a 
> > buffer.
> That's a bit odd then. If you don't explicitly specify dom0's memory 
> allocation at boot time then you should end up with 128MB 'slack' left 
> unallocated. And that should all be <4GB.
> If you are giving dom0 all of memory on boot, and then reducing it 
> later, that could be a problem (dom0 may end up giving back only memory 
>  >4GB).
Just as an update, I just "upgraded" this specific host from -unstable 
to 3.0-testing (3.0.1) and I will report back if I still receive these 
BUG()'s.
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