netdev - Re: forcedeth driver hangs under heavy load

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Message-ID: <1271169741.16881.437.camel@edumazet-laptop>
Date:	Tue, 13 Apr 2010 16:42:21 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	stephen mulcahy <smulcahy@...il.com>
Cc:	Ben Hutchings <bhutchings@...arflare.com>,
	netdev <netdev@...r.kernel.org>,
	Ben Hutchings <ben@...adent.org.uk>,
	Ayaz Abdulla <aabdulla@...dia.com>, 572201@...s.debian.org
Subject: Re: forcedeth driver hangs under heavy load

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 off
> 
> RESULT: 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.
> 
> -stephen

Thanks 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 ?


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