netdev - e1000e "Detected Tx Unit Hang"

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Date:	Thu, 26 Jun 2008 08:52:53 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	netdev@...r.kernel.org
Subject: e1000e "Detected Tx Unit Hang"

Hi:

I'm getting these errors after upgrading to 2.6.26-rc8 (previously
running Red Hat's 2.6.18-53.el5xen which was stable):

Jun 26 08:26:16 gorgoroth kernel: eth0: Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
Jun 26 08:27:28 gorgoroth kernel: eth0: TSO is Disabled
Jun 26 08:37:29 gorgoroth kernel: eth0: Detected Tx Unit Hang:
Jun 26 08:37:29 gorgoroth kernel:   TDH                  <ca>
Jun 26 08:37:29 gorgoroth kernel:   TDT                  <ce>
Jun 26 08:37:29 gorgoroth kernel:   next_to_use          <ce>
Jun 26 08:37:29 gorgoroth kernel:   next_to_clean        <c9>
Jun 26 08:37:29 gorgoroth kernel: buffer_info[next_to_clean]:
Jun 26 08:37:29 gorgoroth kernel:   time_stamp           <2d235>
Jun 26 08:37:29 gorgoroth kernel:   next_to_watch        <cb>
Jun 26 08:37:29 gorgoroth kernel:   jiffies              <2d49c>
Jun 26 08:37:29 gorgoroth kernel:   next_to_watch.status <0>
Jun 26 08:37:31 gorgoroth kernel: eth0: Detected Tx Unit Hang:
Jun 26 08:37:31 gorgoroth kernel:   TDH                  <ca>
Jun 26 08:37:31 gorgoroth kernel:   TDT                  <ce>
Jun 26 08:37:31 gorgoroth kernel:   next_to_use          <ce>
Jun 26 08:37:31 gorgoroth kernel:   next_to_clean        <c9>
Jun 26 08:37:31 gorgoroth kernel: buffer_info[next_to_clean]:
Jun 26 08:37:31 gorgoroth kernel:   time_stamp           <2d235>
Jun 26 08:37:31 gorgoroth kernel:   next_to_watch        <cb>
Jun 26 08:37:31 gorgoroth kernel:   jiffies              <2d690>
Jun 26 08:37:31 gorgoroth kernel:   next_to_watch.status <0>
Jun 26 08:37:32 gorgoroth kernel: NETDEV WATCHDOG: eth0: transmit timed out
Jun 26 08:37:34 gorgoroth kernel: eth0: Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX

This happens with or without TSO enabled.

Cheers,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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