On Tue, Jan 12, 2010 at 05:43:21PM +0100, Michal Novotny wrote: > So, do you think the problem is in the Xen backend drivers and to make > it working right in Xen the driver fix is needed? Yes, the Xen blkback driver just submits I/O directly without using the right interfaces to force cache coherency. It might be relatively easy to hack a call in to flush all caches when it starts up, but given how it bypasses all abstractions it's almost impossible to give full coherency as if using the normal block device interfaces. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
