Date: Fri, 13 Feb 2009 16:06:27 +0100 From: Attila Nagy <bra@fsn.hu> To: Scott Long <scottl@FreeBSD.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r188570 - head/sys/cam Message-ID: <49958C73.2050406@fsn.hu> In-Reply-To: <200902131004.n1DA4xol082999@svn.freebsd.org> References: <200902131004.n1DA4xol082999@svn.freebsd.org>
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Hello, Scott Long wrote: > Author: scottl > Date: Fri Feb 13 10:04:59 2009 > New Revision: 188570 > URL: http://svn.freebsd.org/changeset/base/188570 > > Log: > In the case that the probe has determined that it can't query the device for > a serial number, fall through to the next case so that initial negotiation > still happens. Without this, devices were showing up with only 1 available > tag opening, leading to observations of very poor I/O performance. > > This should fix problems reported with VMWare Fusion and ESX. Early > generation MPT-SAS controllers with SATA disks might also be affected. > HP CISS controllers are also likely affected, as are many other > pseudo-scsi disk subsystems. > Is it possible that these two are related? http://marc.info/?l=freebsd-scsi&m=122900270413265&w=2
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