Re: [Xen-devel] kernel panic

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

> I've seen this error a few times recently:
> "Kernel panic: Unable to reduce memory reservation
> In interrupt handler - not syncing"

Yes, there seems to be a nasty bug that possibly involves writable
page tables (noone has reported the bug with writable page tables
disabled in the kernel configuration). 
 
> And quite a few of these:
> "Received packet needs 52 bytes more headroom."
> 
> The first one is obviously a bit of a problem. Does the second one
> matter?

I've increased the headroom allocated for received packets in teh
frontend driver. It should get rid of the messages.

 -- Keir


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