C5/B5/A4-Series f/w 6.71.02.0008 Reset from dot1s_timer_task with 'dot1sStateMachineClassifier' diagnostic

[FAQ_User]

Article ID: 16060

Products
C5-Series, firmware f/w 6.71.02.0008 through 6.71.04.0004
B5-Series, firmware f/w 6.71.02.0008 through 6.71.04.0004
A4-Series, firmware f/w 6.71.02.0008 through 6.71.04.0004

Symptoms
Unit reboot.

The current.log (5487) displays a "

code:

Task dot1s_timer_task(

<

address

>

code:

) is suspended...

" message, with last reset cause "

code:

sal.c

" and all-zero error code; for example:
<

code:

160

>

code:

Oct 5 10:12:48 192.168.1.110-1 SIM[229649568]: assert.c(83) 349 %% Error(0x0)

<

code:

160

>

code:

Oct 5 10:12:49 192.168.1.110-1 SIM[75442704]: hwutils.c(4079) 350 %% ERROR:Code exception: 1 minute before watchdog will no longer be serviced.

code:

Task dot1s_timer_task(0xdb02ca0) is suspended with error 1, creating file sysDmp1Oct0513.z

<

code:

57

>

code:

OCT 05 10:13:33 2013 STK1 BOOT[536870160]: bootos.c(587) 157 %% Start of Code - Build:06.71.02.0008 Date:Thu Jun 27 19:27:00 2013

<

code:

110

>

code:

OCT 05 10:15:57 2013 STK1 BOOT[188893872]: edb_bxs.c(1263) 159 %% Last switch reset caused by sal.c(1184): Error code 0x00000000, after 2688787 seconds

The sysDmp (13650) file states "

code:

Task dot1s_timer_task

" and displays a "

code:

dot1sStateMachineClassifier

" diagnostic; for example:

code:

Detailed erred task information

code:

---------------------------------

code:

Calling Stack:

code:

------------

code:

Task ID:

code:

0xdb02ca0

code:

Task Name:

code:

dot1s_timer_task

code:

PC:

code:

0x141c084

code:

PendQ:

code:

0x13771034

code:

SP:

code:

0xdb01500

code:

0x141c084: taskSuspend (0x141be28) + 0x25c

code:

0x1294e0c: log_error_nvram (0x1294ae4) + 0x328

code:

0x1ee5cc: _default_assert (0x1ee488) + 0x144

code:

0x1ee478: _sal_assert (0x1ee45c) + 0x1c

code:

0x1f3764: sal_dma_free (0x1f370c) + 0x58

code:

0x2abec: hapiBroadSend (0x29900) + 0x12ec

code:

0x194ec: dapiCtl (0x19074) + 0x478

code:

0x5d2080: dtlPduTransmit (0x5d1f50) + 0x130

code:

0x11fb348: dot1sBpduTransmit (0x11fb154) + 0x1f4

code:

0x11fbd84: dot1sMstpTx (0x11fb388) + 0x9fc

code:

0x11f1e40: dot1sPtxRstpAction (0x11f1e18) + 0x28

code:

0x11f85ec: dot1sPtxMachine (0x11f8554) + 0x98

code:

0x11f2ae0: dot1sStateMachineClassifier (0x11f2978) + 0x168

code:

0x11f7fd0: dot1sPtxGenerateEvents (0x11f7dc4) + 0x20c

code:

0x11f2ae0: dot1sStateMachineClassifier (0x11f2978) + 0x168

code:

0x11f30b8: dot1sTimerGenerateEvents (0x11f2cc4) + 0x3f4

code:

0x11dce58: dot1sTimerAction (0x11dcb64) + 0x2f4

code:

0x11dd2e4: dot1s_timer_task (0x11dd260) + 0x84

code:

0x137cd0c: vxTaskEntry (0x137ccc4) + 0x48

Solution
Upgrade to firmware 6.71.05.0008 or higher.
Release notes state, in the '

code:

Changes and Enhancements in 6.71.05.0008

' section:

code:

18787, 18870

code:

Corrected a potential reset condition with the resulting log message "Last switch reset was caused by sal.c(1184): Error code 0x00000000".