Date: Wed, 3 Mar 2010 16:05:23 -0700 From: Scott Long <scottl@samsco.org> To: Alexander Motin <mav@freebsd.org> 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 Message-ID: <D180E8D6-5672-443D-A909-6F1248E35843@samsco.org> In-Reply-To: <4B8EC9E0.6050703@FreeBSD.org> References: <201003031758.o23HwfnD023194@svn.freebsd.org> <4B8EC54E.4050705@fsn.hu> <4B8EC9E0.6050703@FreeBSD.org>
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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
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