NetBSD Problem Report #42323

From www@NetBSD.org  Sun Nov 15 16:10:56 2009
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Date: Sun, 15 Nov 2009 16:10:56 +0000 (UTC)
From: 6bone@6bone.informatik.uni-leipzig.de
Reply-To: 6bone@6bone.informatik.uni-leipzig.de
To: gnats-bugs@NetBSD.org
Subject: tso4 problem
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>Number:         42323
>Category:       kern
>Synopsis:       tso4 problem
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Nov 15 16:15:00 +0000 2009
>Last-Modified:  Sun Jan 02 11:00:05 +0000 2011
>Originator:     Uwe Toenjes
>Release:        NetBSD 5.0_STABLE
>Organization:
University of Leipzig
>Environment:
NetBSD 6bone.informatik.uni-leipzig.de 5.0_STABLE NetBSD 5.0_STABLE (MYCONF) #2: Mon Nov  9 16:17:44 CET 2009  root@6bone.informatik.uni-leipzig.de:/usr/obj/sys/arch/amd64/compile/MYCONF amd64
>Description:
if tso4 is enabled on my Intel NIC the server sometimes loses its network connection and dmesg reports

wm0: device timeout (txfree 3854 txsfree 0 txnext 4042)
wm0: device timeout (txfree 3842 txsfree 0 txnext 301)
wm0: device timeout (txfree 3826 txsfree 0 txnext 3210)

the switch reports link down/up events.
the same problem occurs with the current kernel.
>How-To-Repeat:
use tso4 at intel NICs with the following chipset:

wm0 at pci9 dev 0 function 0: Intel PRO/1000 PT (82571EB), rev. 6
wm0: interrupting at ioapic0 pin 16
wm0: PCI-Express bus
wm0: 65536 word (16 address bits) SPI EEPROM
wm0: Ethernet address 00:15:17:0e:98:5e

>Fix:

>Audit-Trail:
From: 6bone@6bone.informatik.uni-leipzig.de
To: gnats-bugs@NetBSD.org
Cc: 
Subject: Re: kern/42323: tso4 problem
Date: Mon, 22 Feb 2010 07:57:47 +0100 (CET)

 the problem occurs also with netbsd-5.0.2


 Regards
 Uwe

From: 6bone@6bone.informatik.uni-leipzig.de
To: gnats-bugs@NetBSD.org
Cc: 
Subject: Re: kern/42323: tso4 problem
Date: Sun, 2 Jan 2011 11:55:04 +0100 (CET)

 the problem occurs also with netbsd-5.1

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