Date: Thu, 23 Nov 2006 01:18:54 -0700 From: Scott Long <scottl@samsco.org> To: Joe Marcus Clarke <marcus@FreeBSD.org> Cc: Current@FreeBSD.org Subject: Re: Constant watchdog timeouts on em0 with today's -CURRENT Message-ID: <4565596E.7020102@samsco.org> In-Reply-To: <1164267942.94313.55.camel@shumai.marcuscom.com> References: <1164266670.94313.44.camel@shumai.marcuscom.com> <45654F26.7080800@samsco.org> <1164267942.94313.55.camel@shumai.marcuscom.com>
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Joe Marcus Clarke wrote: > On Thu, 2006-11-23 at 00:35 -0700, Scott Long wrote: >> Joe Marcus Clarke wrote: >>> I just synced with today's -CURRENT, and rendered by port build machine >>> useless. With minimal network traffic (just logging in via SSH with a >>> TCP NFS-mounted home) I get an immediate watchdog timeout on em0, and >>> they just keep coming as I type in the session. The machine is >>> otherwise idle while this is occurring. >>> >>> I am currently running: >>> >>> FreeBSD fugu.marcuscom.com 7.0-CURRENT FreeBSD 7.0-CURRENT #83: Thu Nov >>> 23 01:51:05 EST 2006 >>> root@fugu.marcuscom.com:/space2/obj/usr/src/sys/FUGU i386 >>> >>> I was running: >>> >>> FreeBSD 7.0-CURRENT #80: Fri Nov 10 15:53:48 EST 2006 >>> marcus@fugu.marcuscom.com:/space2/obj/usr/src/sys/FUGU >>> >>> Which provided stable networking. Here are my verbose dmesg and kernel >>> config. Note: this machine has both am if_em and an mpt card. Could >>> the recent MSI changes have exacerbated the em watchdog problem? What >>> can I do (besides downgrade) to resolve this? Thanks. >>> >>> http://www.marcuscom.com/downloads/fugu_dmesg.txt >>> http://www.marcuscom.com/downloads/fugu_kernel.txt >>> >>> Joe >> Have you followed the instructions in src/UPDATING on how to turn MSI >> off? > > Man, do I feel stupid. I completely overlooked UPDATING. Indeed, > disabling MSI restores network stability. Thanks, Scott. > > Joe > Btw, could you submit a PR with your system information and assign it to John? I know that he intends to do some form of blacklist or whitelist for MSI support, and data like yours is needed for that. Scott
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