[c-nsp] 3550 IO memory fragmentation

[David Freedman]

What release are you running? could it be CSCdz51522?

Dave.


Jon Lewis wrote:
> We had a recent network event during which all of our 3550 access layer
> switches started logging things like:
> 
> %SYS-2-MALLOCFAIL: Memory allocation of 1680 bytes failed from 0x17FC48,
> alignment 0
> Pool: I/O  Free: 5936  Cause: Memory fragmentation
> Alternate Pool: None  Free: 0  Cause: No Alternate pool
> 
> -Process= "Pool Manager", ipl= 0, pid= 5
> -Traceback= 1C919C 1CA760 17FC4C 1DB43C 1DB658 1EBACC 1EF0FC
> 
> A few minutes later, all was back to normal, though one 3550 did a
> software forced crash / reload.
> 
> Under normal circumstances, these switches have 4.5-5mb of free IO memory.
> 
> This looks very similar to what was posted several years ago at
> 
> http://www.velocityreviews.com/forums/t31947-catalysts-trouble.html
> 
> Searching bug toolkit, I didn't find anything that looked relevant.  Has
> anyone else run into this sort of thing with 12.1EA software or have an
> idea what the cause/solutions might be?
> 
> ----------------------------------------------------------------------
>  Jon Lewis                   |  I route
>  Senior Network Engineer     |  therefore you are
>  Atlantic Net                |
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