[sheepdog-users] 答复: Does the SSD cache disk mount need user_attr?

[Liu Yuan]

On Mon, Dec 23, 2013 at 03:32:52PM +0800, redtone wrote:
> Because when I enable the -w SSD cache the VMs will be hung up（when I
> reboot the VM, the windows cannot boot but black screen）.
> And I found the ssdcache does not mount with xattr on
> 
> So I found the ssdcache is not mounted with xattr on.
> 
> I have run the VMs for one week with no -w cache normally.
> 
> I am trying -w ssdcache mount with xattr on today,
> I will report the result later if the issue can be duplicated.
> 

What is your -w size? Recently one user report that windows might have problems
on top of object cache. But all the QEMU and sheepdog logs didn't report anything
broken. So I suspect that there is latent bug hidden in relcaim code of object
cache. Reclaim code will triggered very often when the cache is full and it will
reclaim the space.

Thanks
Yuan