From: Samuel Thibault <samuel.thibault@ens-lyon.org>
To: "Dave, Tushar N" <tushar.n.dave@intel.com>,
"Kirsher, Jeffrey T" <jeffrey.t.kirsher@intel.com>,
"Brandeburg, Jesse" <jesse.brandeburg@intel.com>,
"Allan, Bruce W" <bruce.w.allan@intel.com>,
"Wyborny, Carolyn" <carolyn.wyborny@intel.com>,
"Skidmore, Donald C" <donald.c.skidmore@intel.com>,
"Rose, Gregory V" <gregory.v.rose@intel.com>,
"Waskiewicz Jr, Peter P" <peter.p.waskiewicz.jr@intel.com>,
"Duyck, Alexander H" <alexander.h.duyck@intel.com>,
"Ronciak, John" <john.ronciak@intel.com>,
"David S. Miller" <davem@davemloft.net>,
Jiri Pirko <jpirko@redhat.com>, Dean Nelson <dnelson@redhat.com>,
"e1000-devel@lists.sourceforge.net"
<e1000-devel@lists.sourceforge.net>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] e1000: Reset rx ring index on receive overrun
Date: Fri, 18 May 2012 01:31:24 +0200 [thread overview]
Message-ID: <20120517233124.GK683@type.famille.thibault.fr> (raw)
In-Reply-To: <20120517232821.GJ683@type.famille.thibault.fr>
Samuel Thibault, le Fri 18 May 2012 01:28:21 +0200, a écrit :
> Dave, Tushar N, le Thu 17 May 2012 23:22:31 +0000, a écrit :
> > I am interested in to see if you have actual test case and more importantly test data that shows that kernel and device indexes are not synchronized any more.
>
> Well, it's not with an actual physical device, but with the kvm
> emulation.
BTW, it also happens easily when request_irq takes some time to
complete: since we enable E1000_TCTL_EN before that, the card can have
time to fill the ring before irqs are processed.
Samuel
next prev parent reply other threads:[~2012-05-17 23:31 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-17 23:01 Samuel Thibault
2012-05-17 23:22 ` Dave, Tushar N
2012-05-17 23:28 ` Samuel Thibault
2012-05-17 23:31 ` Samuel Thibault [this message]
2012-05-18 0:04 ` Brandeburg, Jesse
2012-05-18 0:12 ` Samuel Thibault
2012-05-18 0:26 ` Brandeburg, Jesse
2012-05-18 13:51 ` e1000 rx emulation bug (Was: [PATCH] e1000: Reset rx ring index on receive overrun) Samuel Thibault
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