Re: [Qemu-devel] [RFC][PATCH 0/3] Fix caching issues with live migration

2010-09-12 Thread Anthony Liguori
On 09/12/2010 05:46 AM, Avi Kivity wrote: On 09/11/2010 05:04 PM, Anthony Liguori wrote: Today, live migration only works when using shared storage that is fully cache coherent using raw images. The failure case with weak coherent (i.e. NFS) is subtle but nontheless still exists. NFS only gu

Re: [Qemu-devel] [RFC][PATCH 0/3] Fix caching issues with live migration

2010-09-12 Thread Avi Kivity
On 09/11/2010 05:04 PM, Anthony Liguori wrote: Today, live migration only works when using shared storage that is fully cache coherent using raw images. The failure case with weak coherent (i.e. NFS) is subtle but nontheless still exists. NFS only guarantees close-to-open coherence and when pe

[Qemu-devel] [RFC][PATCH 0/3] Fix caching issues with live migration

2010-09-11 Thread Anthony Liguori
Today, live migration only works when using shared storage that is fully cache coherent using raw images. The failure case with weak coherent (i.e. NFS) is subtle but nontheless still exists. NFS only guarantees close-to-open coherence and when performing a live migration, we do an open on the so