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Board reset -Exc Vector: DSI exception (0x00000300) - Thread Name: tSshC

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TitleBoard reset -Exc Vector: DSI exception (0x00000300) - Thread Name: tSshC
Symptoms
Reset : Exc Vector: DSI exception (0x00000300) : Thread Name: tSshC
The following message is seen in the faultlog with version 8.62.02

 
Message   3/248  Exception PPC750 Info     08.62.02.0022   04/27/2017 14:31:18

   Exc Vector:   DSI exception                              (0x00000300) 
   Thread Name:  tSshC                       
   Exc Addr:   0x00fccf2c 
   Thread Stack: 0x3071b000..0x30711000 
   Stack Pointer: 0x3071a610 
   Traceback Stack:
   [ 0]            0x00fc80a8
   [ 1]            0x00fcdc48
   [ 2]            0x00fc13bc
   [ 3]            0x00fc1bb0
   [ 4]            0x00fc3be8
   [ 5]            0x00fc63a8
   [ 6]            0x01c857a4
   [ 7]            0xeeeeeeee
GENERAL EXCEPTION INFO: 
srr0 : 0x00fccf2c   srr1 : 0x0000b032   dar  : 0x4b377d0c 
cr   : 0x28000448   xer  : 0x00000000   fpcsr:0x00000000 
dsisr:0x40000000 
GENERAL REGISTER INFO: 
msr  : 0x0000b032   lr   : 0x00fccf14   ctr  : 0x00fccebc   
pc   : 0x00fccf2c   cr   : 0x28000448   xer  : 0x00000000 
r[ 0]:0x00000001  r[ 1]:0x3071a790  r[ 2]:0x04630050  r[ 3]:0x00000000   
r[ 4]:0x2b377d10  r[ 5]:0x2b3779f0  r[ 6]:0x00000004  r[ 7]:0x06140000   
r[ 8]:0x00000000  r[ 9]:0x0000001f  r[10]:0x1ffffffc  r[11]:0x00000000   
r[12]:0x42000884  r[13]:0x061443c0  r[14]:0x00000000  r[15]:0x00000000   
r[16]:0x00000000  r[17]:0x00000000  r[18]:0x00000000  r[19]:0x00000000   
r[20]:0x00000000  r[21]:0x00000000  r[22]:0x2b376e50  r[23]:0x2b36fd60   
r[24]:0x2b377d10  r[25]:0x2b3779f0  r[26]:0x0613dfdc  r[27]:0x2b377d10   
r[28]:0x03a41428  r[29]:0x0000fa00  r[30]:0x2b3779f0  r[31]:0x2b362f00

and on earlier versions such as version 7.xx the error takes this form
 
Message  59/248  EDR Record                07.31.04.0002   04/04/2017 15:52:56

Severity/Facility:   FATAL/KERNEL
Task:                tSshM0
Injection Point:     memPartLib.c:2498
Address:             0x00000000
memPartFree: invalid block 0x10b0d420 in partition 0x313e968
Traceback Stack:
    0x0049e04c
    0x0049d15c
    0x00419d48
    0x010cd5a8
    0x010cd6b8
    0x010cd898
    0x00a3aacc
    0x0094ab88
    0x0094ad4c
    0x01134eb4
    0xeeeeeeee
General Registers:
msr  : 0x0000b032   lr   : 0x010cd520   ctr  : 0x00000000
pc   : 0x010cd520   cr   : 0x48000288   xer  : 0x00000000
r[ 0]:0x0113519c  r[ 1]:0x1a072cd0  r[ 2]:0x02aa28b0  r[ 3]:0x1a072d50  
r[ 4]:0x00000001  r[ 5]:0x010cd520  r[ 6]:0x10b0d420  r[ 7]:0x00000000  
r[ 8]:0x00000000  r[ 9]:0x00000000  r[10]:0x00000000  r[11]:0x1a072c70  
r[12]:0x00000000  r[13]:0x0301d690  r[14]:0x00000000  r[15]:0x00000000  
r[16]:0x00000000  r[17]:0x00000000  r[18]:0x00000000  r[19]:0x00000000  
r[20]:0x00000000  r[21]:0x00000000  r[22]:0x19ffcde0  r[23]:0x03010000  
r[24]:0x00000000  r[25]:0x00000000  r[26]:0x010ce004  r[27]:0x00110003  
r[28]:0x010cdf98  r[29]:0x10b0d420  r[30]:0x00000000  r[31]:0x0313e968

also the following error may be seen
 
<3>CLIdebug[3.tSshM0]Unknown access level


 
Environment
S-Series
Firmware 8.62.02.0022
Firmware 8.42.05.0004
Cause
Under Investigation 
Resolution
Under Investigation

Please open a case with GTAC - How to contact Extreme Networks Global Technical Assistance Center (GTAC)
Additional notes

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