Re: [Xen-devel] vbd resize

[James Harper <james.harper@xxxxxxxxxxxxxxxx>]

> 
> I'm trying to add vbd resize to GPLPV, but it doesn't seem to work:
> 
> xm block-attach w2k3test32 phy:/dev/vg-xen/virt-test-0 hdb w
> 
> xenstore-read /local/domain/0/backend/vbd/377/832/sectors
> =44056576
> 
> lvextend --size=+1M /dev/vg-xen/virt-test-0
> 
> xenstore-read /local/domain/0/backend/vbd/377/832/sectors
> =44056576
> 
> The xenstore backend isn't updated to reflect the new size of the device... a
> strings | grep size of xen-blkback.ko module says:
> <6>xen-blkback:VBD Resize: Domid: %d, Device: (%d, %d)
> <6>xen-blkback:VBD Resize: new size %llu
> <4>xen-blkback:Error writing new size
> 
> So the code is definitely there, it's just not noticing that the device has 
> been
> resize.
> 
> Any suggestions?
> 

My bad. I just checked the code and there actually has to be ring activity for 
the resize to be detected.

James

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