kern/145918: After spontaneous ae0 "watchdog timeout",
"stray Tx interrupt(s)", "size mismatch" messages,
interface hangs up
Gennady Kudryashoff
gennady at gmx.com
Wed Apr 21 15:40:02 UTC 2010
>Number: 145918
>Category: kern
>Synopsis: After spontaneous ae0 "watchdog timeout", "stray Tx interrupt(s)", "size mismatch" messages, interface hangs up
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed Apr 21 15:40:02 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator: Gennady Kudryashoff
>Release: FreeBSD 7.3 Release
>Organization:
Federal Migration Service, Russia, Moscow branch
>Environment:
FreeBSD morannon.home 7.3-RELEASE FreeBSD 7.3-RELEASE #0: Sun Mar 21 06:15:01 UTC 2010 root at walker.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC i386
>Description:
The box works as test NAT+Router+Firewall machine (AsusEEE PC 701), ae0 is internal network interface (ext is axe0).
There are spontaneous messages like that:
ae0: Size mismatch: TxS:384 TxD:14900
ae0: Received stray Tx interrupt(s).
ae0: Size mismatch: TxS:392 TxD:12336
ae0: Size mismatch: TxS:388 TxD:29285
ae0: Size mismatch: TxS:368 TxD:28270
ae0: Size mismatch: TxS:400 TxD:14896
ae0: Size mismatch: TxS:382 TxD:25445
ae0: watchdog timeout - resetting.
or
ae0: watchdog timeout - resetting.
or
ae0: Size mismatch: TxS:384 TxD:2573
ae0: Received stray Tx interrupt(s).
ae0: watchdog timeout - resetting.
After that messages appears on console and dmesg, interface doesn't respond. The only solution is
ifconfig ae0 down && ifconfig ae0 up
to make it work properly.
This behaviour is unpredictable on time and appears both under mid-heavy load and in idle state (no internal connections).
Also, according to message in http://forums.freebsd.org/showthread.php?s=3a2a2318a953d85109318a2ca26f24f0&t=11528 such behaviour seems to appear on FreeBSD 8.
I believe that a problem in the driver, because OpenBSD with different driver implementation (lii) and ArchLinux with 2.6.33 kernel works well.
>How-To-Repeat:
Install FreeBSD 7.3 on AsusEEE 701, and just wait some time (from 2h to 48h).
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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