[c-nsp] Wierd memory issue with SXI/SXI1 on 6500 w/ SUP720-3BXL

[Azher Mughal]

SXI2 will give you another malloc bug :) CSCtb27643    cat6000 Medium 
buffers leak on SP leading to crash

Here is a workaround suggested by Cisco:

One workaround is to disable the diag test 'TestEARLInternalTables' on 
all the DFC/PFC modules. However, this workaround will only stop further 
memory leak. To recover from the already leaked memory on the SP, the 
sup has to be reload (in case of single-sup) or a 'switchover' done (in 
case of dual-supervisor).

Command line:
- - - - - - - - - - - - - - - - - - - - -

r31(config)#no diagnostic monitor module all test TestEARLInternalTables

-Azher


Chris Phillips wrote:
> Every six weeks or so I am running out of memory on a 6509 w/ dual 
> SUP720-3BXL with mostly 6700-series line cards.
>
> I have 21 other nodes with this exact same configuration, some even 
> running SXI or SXI1 that do not have this issue, which first led me to 
> believe that the issue might be hardware related.
>
> During our last maintenance window to alleviate the memory issue, I 
> forced the standby SUP to become the active SUP.  The memory issue 
> persisted, leading me back to thinking it is a software issue.
>
> I did not have this issue with SXH* on this same device, but SXH is 
> *SO* buggy, rolling back is not an option.  This leads me to believe 
> that it is most likely a software issue.
>
> The router is heavily used with 250+ BGP sessions, OSPF, MPLS, v4/v6, 
> etc, but I don't think it should be consuming and not releasing 4 
> mbytes of memory each day.
>
> Has anyone else seen this?  Anyone know a workaround?
>
> I'm upgrading to SXI2 tomight in hopes that it resolves my issue.
>