Date: Thu, 28 Sep 2006 22:06:25 +0200 From: "Patrick M. Hausen" <hausen@punkt.de> To: Alan Amesbury <amesbury@umn.edu> Cc: freebsd-stable@freebsd.org Subject: Re: 6.2 SHOWSTOPPER - em completely unusable on 6.2 Message-ID: <20060928200625.GB34886@hugo10.ka.punkt.de> In-Reply-To: <451C26BD.2090807@umn.edu> References: <20060927215554.C059316A601@hub.freebsd.org> <451C26BD.2090807@umn.edu>
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Hi! On Thu, Sep 28, 2006 at 02:47:09PM -0500, Alan Amesbury wrote: > Additional data point: On 6.1-RELEASE I've observed the same sort of > behavior, but without any noticeable consistency. It affects bge(4) and > em(4) systems. In the case of the bge(4)-equipped system, there's a > very weak correlation between heavy disk activity and watchdog timeouts. > However, on that system, it doesn't look like the network card shares > its PCI bus and interrupt with any other devices: Same here, just to make sure to get that point through: em doesn't share an interrupt with anything else -> hang will occur sooner or later if the system is busy (sometimes later, but reproducably) force system to share interrupt of, say, ata0 and em0 -> immediate *kaboom* whenever both are busy HTH, Patrick -- punkt.de GmbH Internet - Dienstleistungen - Beratung Vorholzstr. 25 Tel. 0721 9109 -0 Fax: -100 76137 Karlsruhe http://punkt.de
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