svn commit: r204648 - head/sys/dev/ciss

Scott Long scottl at samsco.org
Wed Mar 3 23:05:28 UTC 2010


On Mar 3, 2010, at 1:43 PM, Alexander Motin wrote:
> Attila Nagy wrote:
>> Alexander Motin wrote:
>>> Author: mav
>>> Date: Wed Mar  3 17:58:41 2010
>>> New Revision: 204648
>>> URL: http://svn.freebsd.org/changeset/base/204648
>>> 
>>> Log:
>>>  Several changes to fix livelock under high load, introduced by r203489:
>>>  - change the way in which command queue overflow is handled;
>>>  - do not expose to CAM two command slots, used for driver's internal purposes;
>>>  - allow driver to use up to 1024 command slots, instead of 256 before.
>>> 
>> Thank you for hunting this bug down. Do you plan to increase the maximum
>> logical device limit as well?
> 
> Not sure. I just have no idea why this limitation was enforced. Even if
> I personally don't see problems from increasing it, it would be nice if
> somebody more aware of this driver tell whether it is correct for all
> supported hardware. I just don't have any. Thank you for provided
> access. If nobody responds, we may try our luck in CURRENT.
> 

If you don't know, then please ask the people who maintain the code.

Scott



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