Gergely Sánta wrote:
Hi!
I was testing VirtualBox and iscsi last few days. We are using
iscsi-scst for performance reasons. VirtualBox was not able to handle
those iscsi disks, always reported VERR_BUFFER_OVERFLOW. Each other
iscsi initiators I tested (vmware, iscsiadm) used that disk without
problems, so I thought, the problem may be in VBox initiator.
I downloaded sources and figured out, that the problem is in static
buffer in VBox initiator. iscsi-scst tries to send sensitive data sized
96 bytes. I don't know, what this data is, but VBox denied our iscsi
disk because of this buffer. I increased static buffer size to 96 bytes
(sense[32] -> sense[96]) in VBox iscsi initiator module, compiled it,
and now it works just perfect.
Thanks, fixing such problems have been on my todo list already.
I'm attaching patchfile against version 3.1.4_OSE
Do you think, it's acceptable for stable releases?
The fix will break again when some iSCSI target comes around which
provides even more sense data, so it is just one step.
So from my point of view the solution is to both apply your patch and
also make VirtualBox a little less paranoid. Having to truncate sense
data is no error situation, so it should be handled gracefully.
Again, thanks for providing the patch and reminding me.
Klaus
Regards,
Gergely Santa
_______________________________________________
vbox-dev mailing list
[email protected]
http://vbox.innotek.de/mailman/listinfo/vbox-dev
