Am 06.11.2012 23:42, schrieb Paolo Bonzini:
i wantes to use scsi unmap with rbd. rbd documention says you need to
set discard_granularity=512 for the device. I'm using qemu 1.2.
If i set this and send an UNMAP command i get this kernel output:
The discard request is failing. Please check why with a breakpoint on
rbd_aio_discard_wrapper or scsi_handle_rw_error for example.
I've no idea about setting breakpoints and analyse what happens... no C
coder just perl. I can for sure modify code and compile... but i don't
know how todo that.
Greets,
Stefan
