Bug#572201: forcedeth driver hangs under heavy load

To: Ben Hutchings <bhutchings@solarflare.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>, netdev <netdev@vger.kernel.org>, Ben Hutchings <ben@decadent.org.uk>, Ayaz Abdulla <aabdulla@nvidia.com>, 572201@bugs.debian.org
Subject: Bug#572201: forcedeth driver hangs under heavy load
From: stephen mulcahy <smulcahy@gmail.com>
Date: Tue, 13 Apr 2010 15:27:04 +0100
Message-id: <4BC47F38.5040509@gmail.com>
Reply-to: stephen mulcahy <smulcahy@gmail.com>, 572201@bugs.debian.org
In-reply-to: <1271160298.2098.0.camel@achroite.uk.solarflarecom.com>
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>

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 onfirst run.


2. ethtool -K eth0 tx off

RESULT: reproducer runs three times without any hosts becoming unresponsive.

-stephen

Reply to:

Follow-Ups:
- Bug#572201: forcedeth driver hangs under heavy load
  - From: Eric Dumazet <eric.dumazet@gmail.com>

References:
- Bug#572201: Further queries
  - From: Ben Hutchings <ben@decadent.org.uk>
- Bug#572201: Further queries
  - From: stephen mulcahy <smulcahy@atlanticlinux.ie>
- Bug#572201: forcedeth driver hangs under heavy load
  - From: Ben Hutchings <ben@decadent.org.uk>
- Bug#572201: forcedeth driver hangs under heavy load
  - From: stephen mulcahy <smulcahy@atlanticlinux.ie>
- Bug#572201: forcedeth driver hangs under heavy load
  - From: stephen mulcahy <smulcahy@gmail.com>
- Bug#572201: forcedeth driver hangs under heavy load
  - From: Eric Dumazet <eric.dumazet@gmail.com>
- Bug#572201: forcedeth driver hangs under heavy load
  - From: stephen mulcahy <smulcahy@gmail.com>
- Bug#572201: forcedeth driver hangs under heavy load
  - From: stephen mulcahy <smulcahy@gmail.com>
- Bug#572201: forcedeth driver hangs under heavy load
  - From: Eric Dumazet <eric.dumazet@gmail.com>
- Bug#572201: forcedeth driver hangs under heavy load
  - From: stephen mulcahy <smulcahy@gmail.com>
- Bug#572201: forcedeth driver hangs under heavy load
  - From: Eric Dumazet <eric.dumazet@gmail.com>
- Bug#572201: forcedeth driver hangs under heavy load
  - From: stephen mulcahy <smulcahy@gmail.com>
- Bug#572201: forcedeth driver hangs under heavy load
  - From: Eric Dumazet <eric.dumazet@gmail.com>
- Bug#572201: forcedeth driver hangs under heavy load
  - From: stephen mulcahy <smulcahy@gmail.com>
- Bug#572201: forcedeth driver hangs under heavy load
  - From: Ben Hutchings <bhutchings@solarflare.com>

Prev by Date: Bug#573912: linux-2.6: please enable ramzswap/compcache
Next by Date: Bug#572201: forcedeth driver hangs under heavy load
Previous by thread: Bug#572201: forcedeth driver hangs under heavy load
Next by thread: Bug#572201: forcedeth driver hangs under heavy load
Index(es):
- Date
- Thread