UC520 Random Reboot

[jcarter]

We have a customer with a UC520 than randomly rebooted.  It only happened once so far.  Are there any error logs I can check to find out why it rebooted?

I noticed the closet that stores the UC520 is pretty hot.  That might be why it rebooted but I can't be sure.  The datasheet says up to 104 degrees is safe operating temperature.

[Steven DiStefano]

is there a crashfile in the root of flash: ?

[jcarter]

I attached the file.

I also noticed this line in the show version command "a SegV exception, PC 0x82A4C328" as the reason for the reboot.

[Steven DiStefano]

Good news.

I dont know how to read these, but perhaps someone else does.

I would open a case with that.

[Steven DiStefano]

Feedback:

The stack decode is as follows:

atg-view1% rsym uc500-advipservicesk9-mz.150-1.XA3a.symbols.gz

Uncompressing and reading uc500-advipservicesk9-mz.150-1.XA3a.symbols.gz via /router/bin/zcat

uc500-advipservicesk9-mz.150-1.XA3a.symbols.gz read in

Enter hex value: 0x82A4C328z 0x83989458z 0x814DFC78z 0x814E0D8Cz 0x814E33D4z 0x80FAABB0z 0x80B40AB4z 0x80B48F00z 0x8387A678z 0x8387ADE0z 0x80B45508z 0x80B45F04z 0x802BE3B0z 0x802C1050z

0x82A4C328:__free(0x82a4b544)+0xde4

0x83989458:free(0x83989430)+0x28

0x814DFC78:dialCtlHistoryEntry_free(0x814dfc14)+0x64

0x814E0D8C:dialmib_create_historylink(0x814e0ca8)+0xe4

0x814E33D4:dcmib_call_disconnect_report(0x814e32ac)+0x128

0x80FAABB0:cc_api_insert_call_history(0x80faa94c)+0x264

0x80B40AB4:vtsp_do_call_history(0x80b3ff24)+0xb90

0x80B48F00:act_wrelease_release(0x80b48e44)+0xbc

0x8387A678:fsm_crank(0x8387a44c)+0x22c

0x8387ADE0:fsm_exec_w_option(0x8387ad2c)+0xb4

0x80B45508:vtsp_process_event(0x80b44f30)+0x5d8

0x80B45F04:vtsp_main(0x80b45d38)+0x1cc

0x802BE3B0:ppc_process_dispatch(0x802be38c)+0x24

0x802C1050:process_execute(0x802c0eac)+0x1a4. 

We don’t see any CDETS raised in last 1 year. There is one old DDTS which was put in U (unreproducible).

The post says it happened only once.   Like yours.

Can you tell us how long has the UC500 been running before it crashed?