Re: [Xen-ia64-devel] BUG at mm.c:605

On Wed, 2006-10-18 at 12:59 +0900, Doi.Tsunehisa@xxxxxxxxxxxxxx wrote:
> Hi,
> 
> You (yamahata) said:
> > I think the issue is same as reported in the below thread.
> > http://lists.xensource.com/archives/html/xen-ia64-devel/2006-09/msg00204.html
> > I tried to convince him, but failed.
> > I think that the best way is to revert the patch and we should seek
> > for the right fix.
> 
>   I agree with Isaku's opinion. I think that the patch was preliminary
> to avoid crash hypervisor.

   Ok, should I simply revert xen-ia64-unstable cset 11636:3470d9cd27e5?

> > I guess that making xennet.rx_copy default enabled is the beginning.
> > The root cause is that relinquish_memory() writes the P2M simulteniously
> > with __acquire_grant_for_copy(). 
> 
>   I think so.

   I was using xennet.rx_copy on my domU.  I have not seen this BUG when
I use the page flipping interface for the domU network.  Thanks,

        Alex

-- 
Alex Williamson                             HP Open Source & Linux Org.


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