Running -current as of about May 5, 2011

Two DL370 systems each w/LSI 9200-8e adapter.

Two SAS shelves 25 drives each.

Cabled for full multipathing & failover(shared).
ie: Cable from system 1 to shelf 1, shelf 1 to shelf 2, shelf 2 to system 2. Second cable set the same as the first except through port 2 on the adapters and modules B on the shelves.

Pull first cable from system one and multipathing moves to the 2nd provider. Reinsert the cable and the providers are re-established. Can pull/reinsert this cable multiple times with no problem. Remove the 2nd cable and the kernel crashes. Sorry about the images for the kernel information - no serial console right now.

Pretty standard setup, and I don't plan on pulling the cable in production... but it makes a GREAT demo :-)

• dmesg output

• zpool status & list output

• gmultipath -a output

• Screen pic1

• Screen pic2/bt

If anyone has any ideas what might be going on please let me know. Best practices for debugging this are appreciated, and yes, I can replicate this on demand :-)

Thank!!