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I/G/C/B-Series f/w 6.42.12.0007 Webview Login causes Reset


Userlevel 3
Article ID: 14671

Products
I-Series; firmware 6.42.12.0007, 6.61.05.0009
G-Series; firmware 6.42.12.0007, 6.61.05.0009
C5-Series; firmware 6.42.12.0007, 6.61.05.0009
C3-Series; firmware 6.42.12.0007, 6.61.05.0009
B5-Series; firmware 6.42.12.0007, 6.61.05.0009
B3-Series; firmware 6.42.12.0007, 6.61.05.0009

Changes
Opened a Webview management session.

Symptoms
The managed unit reboots once, thereby ending the Webview session.

* diagnostics possibility #1 *

The current.log (5487) reset diagnostic displays a "
code:

l7_prepareSystemDump

" Backtrace identifier, followed by '
code:

Last switch reset

' cause "
code:

Fault(0x00000300)

"; for example:<57> MAY 21 20:56:07 2012 STK1 BOOT[536870176]: bootos.c(567) 781 %%
Start of Code - Build:06.42.12.0007 Date:Thu Apr 26 16:11:16 2012
BackTrace-0x00770f10: sysReboot (0x770f10) + 0x0
BackTrace-0x01020630: SwitchReset (0x1020558) + 0xd8
BackTrace-0x00b62740: l7_prepareSystemDump (0xb61bf0) + 0xb50
BackTrace-0x00b62d20: l7MonitorTask (0xb62c48) + 0xd8
BackTrace-0x01137f30: vxTaskEntry (0x1137ed4) + 0x5c
BackTrace-r0 = 0x00000000 r1 = 0x093fe490 r2 = 0x00000000 r3 = 0xffffffff
BackTrace-r4 = 0x00000004 r5 = 0x00000000 r6 = 0x00000004 r7 = 0x00000031
BackTrace-r8 = 0x00000000 r9 = 0x00000000 r10 = 0x00000014 r11 = 0x00000000
BackTrace-r12 = 0x093fe88c r13 = 0x00000000 r14 = 0x00000000 r15 = 0x00000000
BackTrace-r16 = 0x00000000 r17 = 0x00000000 r18 = 0x00000000 r19 = 0x0000000c
BackTrace-r20 = 0x00000000 r21 = 0x093fe4c0 r22 = 0x093fe760 r23 = 0x01640000
BackTrace-r24 = 0x02120000 r25 = 0x10814f1c r26 = 0x00000001 r27 = 0x00000000
BackTrace-r28 = 0x1081ec7c r29 = 0x093fe880 r30 = 0x00000004 r31 = 0x00000000
BackTrace-lr = 0x01149e44 pc = 0x01132fc4 msr = 0x00000000
<110> MAY 21 20:57:20 2012 STK1 BOOT[174182816]: edb_bxs_api.c(786) 797 %%
Last switch reset caused by Fault(0x00000300) SRR0(0x01132FC4) SRR1(0x0000B032)
DMISS(0x23616EC0) IMISS(0x00000000) DAR(0x00000000) DSISR(0x0A000000)[/code]The sysDmp (13650) file states "
code:

Task Name: tEmWeb

" and the diagnostic points to "
code:

event_data

"; for example:Detailed erred task information
---------------------------------
Calling Stack:

------------
Task ID: 0x93ff3f0
Task Name: tEmWeb
PC: 0x11e3b0c
PendQ: 0x1fffd464
SP: 0x385a3d4

0x11e3b0c: taskSuspend (0x11e36d0) + 0x43c
0x1019310: log_fault_nvram (0x101901c) + 0x2f4
0x1020a50: event_data (0x102083c) + 0x214
0x102083c: event_data (0x102083c) + 0x0
Symbol not found for 0xffffffff[/code]
* diagnostics possibility #2 *

The current.log (5487) reset diagnostic displays a register-rich set of Backtraces, followed by '
code:

Last switch reset

' cause "
code:

Fault(0x00000300)

"; for example:<57> JUN 13 14:58:21 2012 STK1 BOOT[268430624]: bootos.c(1405) 196 %%
Start of Code - Build:06.42.12.0007 Date:Thu Apr 26 16:03:48 2012
BackTrace-r0 = 0x00000000 r1 = 0x0776dda0 r2 = 0x00000000 r3 = 0xffffffff
BackTrace-r4 = 0x00000004 r5 = 0x00000000 r6 = 0x00000004 r7 = 0x00000038
BackTrace-r8 = 0x00000000 r9 = 0x00000000 r10 = 0x00000014 r11 = 0x00000000
BackTrace-r12 = 0x0776e19b r13 = 0x00000000 r14 = 0x00000000 r15 = 0x00000000
BackTrace-r16 = 0x00000000 r17 = 0x00000000 r18 = 0x00000000 r19 = 0x0000000c
BackTrace-r20 = 0x00000000 r21 = 0x0776ddd0 r22 = 0x0776e070 r23 = 0x01670000
BackTrace-r24 = 0x01e70000 r25 = 0x0de116d4 r26 = 0x00000001 r27 = 0x00000000
BackTrace-r28 = 0x0de0ff7c r29 = 0x0776e190 r30 = 0x00000004 r31 = 0x00000000
BackTrace-lr = 0x0117a4b8 pc = 0x01165ebc msr = 0x00000000
<110> JUN 13 14:58:46 2012 STK1 BOOT[139288888]: edb_bxs.c(1226) 206 %%
Last switch reset caused by Fault(0x00000300) SRR0(0x01165EBC) SRR1(0x0000B030)
DMISS(0x1763DED8) IMISS(0x00000000) DAR(0x00000000) DSISR(0x0A000000)[/code]The sysDmp (13650) file states "
code:

Task Name: tEmWeb

" and the diagnostic points to "
code:

event_data

"; for example:Detailed erred task information
---------------------------------
Calling Stack:

------------
Task ID: 0x776ed08
Task Name: tEmWeb
PC: 0x1211f84
PendQ: 0x6da8934
SP: 0x2ddb02c

0x1211f84: taskSuspend (0x1211b48) + 0x43c
0x103e6b4: log_fault_nvram (0x103e3cc) + 0x2e8
0x104e5e8: event_data (0x104e3d4) + 0x214
0x104e3d4: event_data (0x104e3d4) + 0x0
Symbol not found for 0xffffffff[/code]
* diagnostics possibility #3 *

The current.log (5487) reset diagnostic displays a "
code:

ewsServeSubmitForm

" Backtrace identifier, followed by '
code:

Last switch reset

' cause "
code:

Fault(0x00000300)

"; for example:<57> JUN 13 14:00:36 2012 STK1 BOOT[536866080]: bootos.c(715) 47 %%
Start of Code - Build:06.42.12.0007 Date:Thu Apr 26 16:10:58 2012
BackTrace-0x0120099c: bfillBytes (0x120098c) + 0x10
BackTrace-0x010bbbdc: ewaFormSubmit_login (0x10bba1c) + 0x1c0
BackTrace-0x009bbcd4: ewsFormSubmitAction (0x9bbc68) + 0x6c
BackTrace-0x009c1e70: ewsServeSubmitForm (0x9c1e40) + 0x30
BackTrace-0x009c06dc: ewsParse (0x9bfb08) + 0xbd4
BackTrace-0x009b6e40: ewsRun (0x9b6d08) + 0x138
BackTrace-0x009ceeb4: tEmWeb (0x9cee14) + 0xa0
BackTrace-0x01204460: vxTaskEntry (0x1204404) + 0x5c
BackTrace-r0 = 0x00000000 r1 = 0x0b14ee50 r2 = 0x00000000 r3 = 0x00001200
BackTrace-r4 = 0x00000004 r5 = 0x00000000 r6 = 0x00000004 r7 = 0x00000032
BackTrace-r8 = 0x00000000 r9 = 0x00000000 r10 = 0x00000014 r11 = 0x00000000
BackTrace-r12 = 0x0b14f24c r13 = 0x00000000 r14 = 0x00000000 r15 = 0x00000000
BackTrace-r16 = 0x00000000 r17 = 0x00000000 r18 = 0x00000000 r19 = 0x0000000b
BackTrace-r20 = 0x00000000 r21 = 0x0000000b r22 = 0x0000000a r23 = 0x0b14ee80
BackTrace-r24 = 0x00000004 r25 = 0x01720000 r26 = 0x00000001 r27 = 0x142bc984
BackTrace-r28 = 0x142bb4c4 r29 = 0x0b14f240 r30 = 0x0b14f140 r31 = 0x00000000
BackTrace-lr = 0x0121e058 pc = 0x0120099c msr = 0x00000000
<110> JUN 13 14:00:55 2012 STK1 BOOT[211364240]: edb_bxs.c(1226) 65 %%
Last switch reset caused by Fault(0x00000300) SRR0(0x0120099C) ESR(0x00800000)
MSR(0x00000200) DEAR(0x00000000) IMISS(0x0120099C)[/code]The sysDmp (13650) file states "
code:

Task Name: tEmWeb

" and the diagnostic points to "
code:

event_data

"; for example:Detailed erred task information
---------------------------------
Calling Stack:

------------
Task ID: 0xb14fdb0
Task Name: tEmWeb
PC: 0x12bb7e8
PendQ: 0xb1510d4
SP: 0x36ff72c

0x12bb7e8: taskSuspend (0x12bb3ac) + 0x43c
0x10e36cc: log_fault_nvram (0x10e33e8) + 0x2e4
0x10ee4cc: event_data (0x10ee2b8) + 0x214
0x10ee2b8: event_data (0x10ee2b8) + 0x0
0x2a0: _vx_offset_SM_OBJ_MEM_HDR_curNumName (0x1dc) + 0xc4[/code]
Solution/Workaround
For the 6.42 fix, upgrade to firmware 6.42.13.0002.
Release notes state, in the '
code:

Changes and Enhancements in 6.42.13.0002

' section:
code:

17083

code:

Addressed an issue whereby logging to the switch via Webview could cause a reset with a message similar to "edb_bxs_api.c(786) 202 %% Last switch reset caused by Fault(0x00000300) SRR0(0x01113A40) SRR1(0x0000B030) DMISS(0x13350104) IMISS(0x00000000) DAR(0x00000000) DSISR(0x0A000000)".



For the 6.61 fix, upgrade to firmware 6.61.06.0009 or higher (14480).
Release notes state, in the '
code:

Changes and Enhancements in 6.61.06.0009

' section:
code:

17083

code:

Addressed an issue whereby logging to the switch via webview could cause a reset with a message similar to "edb_bxs_api.c(786) 202 %% Last switch reset caused by Fault(0x00000300) SRR0(0x01113A40) SRR1(0x0000B030) DMISS(0x13350104) IMISS(0x00000000) DAR(0x00000000) DSISR(0x0A000000)".



Pre-upgrade workaround:
If Webview is not needed, then don't use it. It may optionally be disabled ('
code:

set webview disable

').

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