[v3.7 Regression] [SCSI] sd: Implement support for WRITE SAME

Joseph Salisbury joseph.salisbury at canonical.com
Tue Dec 18 19:52:17 UTC 2012

On 12/14/2012 05:35 PM, Martin K. Petersen wrote:
>>>>>> "Joseph" == Joseph Salisbury <joseph.salisbury at canonical.com> writes:
> Joseph> I see that you are the author of this patch, so I wanted to run
> Joseph> this by you.  I was thinking of requesting a revert for v3.7,
> Joseph> but I wanted to get your feedback first.
> I copied luksformat from a Debian box so I could try to reproduce on
> OL6. Everything works fine for me here. I set up a encrypted ext4
> device, unpacked a kernel tarball, and did a build.
> The oops screenshot in the launchpad bug report is pretty useless.
> Please provide a full backtrace so we can get a better idea what's going
> on.
Hi Martin,

I captured the netconsole output from boot until I reproduced the bug. 
The RIP points to kcryptd_crypt_write_io_submit() in 
~/drivers/md/dm-crypt.c.  The output can be seen at:


Thanks again,


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