Date: Sun, 1 Feb 2015 21:31:32 +0100 From: Edward Tomasz =?utf-8?Q?Napiera=C5=82a?= <trasz@FreeBSD.org> To: Steven Hartland <smh@FreeBSD.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r278034 - head/sys/dev/ahci Message-ID: <20150201203132.GA30253@brick.home> In-Reply-To: <201502012000.t11K09AD069530@svn.freebsd.org> References: <201502012000.t11K09AD069530@svn.freebsd.org>
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On 0201T2000, Steven Hartland wrote: > Author: smh > Date: Sun Feb 1 20:00:08 2015 > New Revision: 278034 > URL: https://svnweb.freebsd.org/changeset/base/278034 > > Log: > Add a quirk to limit AHCI MSI vectors to one > > In 10.1-RELEASE the default number of MSI vectors used was changed from one > to as many vectors as the HW supports. > > This change resulted in an ahci timeouts regression when running on AMD > SB7x0/SB8x0/SB9x0 hardware, so its now limited to 1 MSI by default using > this new quirk. Could it fix https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195349?
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