Date: Sat, 6 Mar 2010 12:08:22 -0800 From: Nick Rogers <ncrogers@gmail.com> To: Jack Vogel <jfvogel@gmail.com> Cc: stable@freebsd.org Subject: Re: em(4) interface hangs under 8.0-RELEASE Message-ID: <147432021003061208n64ebd9c9lb168cdfa520e94a3@mail.gmail.com> In-Reply-To: <2a41acea1003061039s41dda598v563edf76d609c4f0@mail.gmail.com> References: <147432021003051648x1a1417dfp3c778922ea2c571f@mail.gmail.com> <2a41acea1003051718r241ac3e9w6ceb37bde0128b43@mail.gmail.com> <20100306180029.GA99452@voi.aagh.net> <2a41acea1003061039s41dda598v563edf76d609c4f0@mail.gmail.com>
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Yes, this was the first em(4) problem I ran into when upgrading from 7.2-RELEASE to 8.0-RELEASE. Yourself and others on another thread eventually recommended turning off TSO and what not. I never had a chance to thoroughly test this solution on this particular hardware because we had already switched to a different set of interfaces (on-motherboard bge(4)). We also had that ALTQ problem popup on em which I'm sure you remember, which prevented me from going back to the em interfaces for a while. After solving the ALTQ problem by going back to the 7.2-RELEASE driver, I thought it would be OK to switch this particular hardware back to using the em interfaces in production. (we were also experiencing kernel panics due to some bge(4) issue a few times a week). I had assumed, incorrectly, that because we were using the em(4) driver from 7.2-RELEASE, there would be no more "hanging" problem. I've also tried the latest CURRENT em(4) driver. So I am pretty sure I have experienced this problem under 8.0-RELEASE, 8.0-RELEASE w/ em(4) driver from 7.2, and 8.0-RELEASE w/ em(4) driver from CVS HEAD. On Sat, Mar 6, 2010 at 10:39 AM, Jack Vogel <jfvogel@gmail.com> wrote: > I need a bit more context Nick. Is this a card that has been > non-problematic > on older releases and just showed a problem with 8.0 REL? > > Regards, > > Jack > >
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