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From: Scott Long <scottl@samsco.org>
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Date: Wed, 3 Mar 2010 16:05:23 -0700
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To: Alexander Motin <mav@freebsd.org>
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Cc: svn-src-head@freebsd.org, Attila Nagy <bra@fsn.hu>, svn-src-all@freebsd.org,
	src-committers@freebsd.org
Subject: Re: svn commit: r204648 - head/sys/dev/ciss
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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
>>>=20
>>> 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.
>>>=20
>> Thank you for hunting this bug down. Do you plan to increase the =
maximum
>> logical device limit as well?
>=20
> 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.
>=20

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

Scott