Re: [Qemu-devel] Is realview-pb-a8 fully supported ?

[Alexander Graf]

On 09.10.2011, at 17:46, Peter Maydell wrote:

> On 9 October 2011 16:01, Alexander Graf <address@hidden> wrote:
>> cache=writeback survives host crashes. The only reason writethrough
>> is the default is Windows XP which doesn't issue flushes properly,
>> so there cache=writeback can lead to data loss. Linux guests are fine.
> 
> I thought that only applied to disks attached via protocols
> (IDE, SCSI) that supported a flush command? SD cards don't,
> so no guest issues flushes.

Ouch, really? Now that makes SDs even worse than I thought :)


Alex