Comment 6 for bug 1176810

The mainline kernel does not fix this bug.

I installed linux-image-3.9.0-030900-generic_3.9.0-030900.201304291257_amd64.deb and the associated linux-headers- packages from the mainline builds repository. This was the latest version available for raring, which I am using.

Attached is a dmesg log. I…
- boot
- power on the enclosure, connected to the USB 2.0 port
- mount a partition from one disk in the enclosure
- transfer some data to it from another disk using dd, i.e.:

$ sudo dd if=/dev/sdb of=/media/khaeru/eebb644a-a12f-469c-a5d5-b50dfccf074c/tmp.img bs=1G count=1 iflag=direct oflag=direct
1+0 records in
1+0 records out
1073741824 bytes (1.1 GB) copied, 63.4855 s, 16.9 MB/s

- unmount the partition, power off the enclosure
- connect the enclosure to the USB 3.0 port, power on the enclosure
- mount the same partition and attempt to run the same dd command

The attached dmesg is from just before dd is run. The attached image is the kernel panic screen.