Hi Martin,Just came across a similar bug you logged a while back - thought you might be interested.
-stephen -- Stephen Mulcahy Atlantic Linux http://www.atlanticlinux.ie Registered in Ireland, no. 376591 (144 Ros Caoin, Roscam, Galway)
--- Begin Message ---
- To: Eric Dumazet <eric.dumazet@gmail.com>
- Cc: Ben Hutchings <bhutchings@solarflare.com>, netdev <netdev@vger.kernel.org>, Ben Hutchings <ben@decadent.org.uk>, Ayaz Abdulla <aabdulla@nvidia.com>, 572201@bugs.debian.org
- Subject: Re: forcedeth driver hangs under heavy load
- From: stephen mulcahy <smulcahy@gmail.com>
- Date: Tue, 13 Apr 2010 15:49:04 +0100
- Message-id: <4BC48460.4040001@gmail.com>
- In-reply-to: <1271169741.16881.437.camel@edumazet-laptop>
- References: <4B9E6C60.7030300@atlanticlinux.ie> <20100315182220.GQ2763@decadent.org.uk> <4B9F5E5E.2060209@atlanticlinux.ie> <1270393967.8341.11.camel@localhost> <4BBCA19C.5080204@atlanticlinux.ie> <1270942606.6179.64.camel@localhost> <4BC2EF88.3060203@atlanticlinux.ie> <4BC31486.1090603@gmail.com> <1271076426.16881.21.camel@edumazet-laptop> <4BC31AA0.5070006@gmail.com> <4BC31DDE.7010005@gmail.com> <1271085862.16881.38.camel@edumazet-laptop> <4BC3461D.3070002@gmail.com> <1271091581.16881.41.camel@edumazet-laptop> <4BC44167.4080807@gmail.com> <1271155766.16881.245.camel@edumazet-laptop> <4BC44EC8.1010104@gmail.com> <1271160298.2098.0.camel@achroite.uk.solarflarecom.com> <4BC47F38.5040509@gmail.com> <1271169741.16881.437.camel@edumazet-laptop>
Eric Dumazet wrote:Le mardi 13 avril 2010 à 15:27 +0100, stephen mulcahy a écrit :Ok, I've tried both of the following with my reproducer 1. ethtool -K eth0 tso offRESULT: reproducer causes multiple hosts to be come unresponsive on first run.2. ethtool -K eth0 tx off RESULT: reproducer runs three times without any hosts becoming unresponsive. -stephenThanks Stephen ! Now some brave fouls to check the 6410 lines of this driver ? ;) Question of the day : Why TSO is broken in forcedeth ? Is it generically broken or is it broken for specific NICS ?Actually, it is only when tx-checksumming is turned off that the problem doesn't occur (so I'm not sure TSO is the problem).Additionally, a google also turns up this existing Debian bug http://bugs.debian.org/506419 which seems to be related.-stephen
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