[c-nsp] Re: MLP Memory Leak Issues in 12.2.25S1??

Brian Feeny signal at shreve.net
Tue Jan 18 09:09:08 EST 2005


Rodney,

Apologies.  Below is some output that I could get.  I cannot get the 
interface configuration just yet, until the
router gets reloaded, and I have put in a request for that.

Its very possible something bad is being done in the configuration, 
this router I have not been able to take a
look at yet, I certainly didn't configure it in the first place.



System image file is "disk1:c7200-a3jk91s-mz.122-25.S1.bin"



  131   0        192        192       6864          0          0 
Multilink PPP
  132   0        192        192       6864          0          0 
Multilink PPP ou
  133   0  135940368  170195840   40791248          0          0 
Multilink event




nwcorp#show proc mem 131
Process ID: 131
Process Name: Multilink PPP
Total Memory Held: 6864 bytes

Processor memory Holding = 6864 bytes
pc = 0x60745E50, size =      6056, count =    1
pc = 0x607328F8, size =       616, count =    1
pc = 0x607349BC, size =       192, count =    1

I/O memory Holding = 0 bytes

PCI memory Holding = 0 bytes

nwcorp#show proc mem 132
Process ID: 132
Process Name: Multilink PPP out
Total Memory Held: 6864 bytes

Processor memory Holding = 6864 bytes
pc = 0x60745E50, size =      6056, count =    1
pc = 0x607328F8, size =       616, count =    1
pc = 0x607349BC, size =       192, count =    1

I/O memory Holding = 0 bytes

PCI memory Holding = 0 bytes

nwcorp#show proc mem 133
Process ID: 133
Process Name: Multilink event
Total Memory Held: 40791248 bytes

Processor memory Holding = 40791248 bytes
pc = 0x60B28FF8, size =  40782208, count = 408771
pc = 0x60745E50, size =      6056, count =    1
pc = 0x607328F8, size =       616, count =    1
pc = 0x60B26CD8, size =       416, count =    3
pc = 0x60B0F814, size =       408, count =    3
pc = 0x60B253D8, size =       392, count =    1
pc = 0x60AB8C14, size =       288, count =    3
pc = 0x607349BC, size =       192, count =    1
pc = 0x60AB8BDC, size =       176, count =    2
pc = 0x60AB8E90, size =       168, count =    2
pc = 0x60AB8E64, size =       168, count =    2
pc = 0x60AB8DDC, size =       160, count =    2

I/O memory Holding = 0 bytes

PCI memory Holding = 0 bytes



On Jan 18, 2005, at 7:41 AM, Rodney Dunn wrote:

> When you post a question about a possible bug
> please always include the full IOS name.
>
> That's because to decode the PC values we
> have to map it to a symbols file.
>
> Can you post the relevant interface configurations
> also?
>
> If you can get 'sh proc mem' to see what the
> process ID is for MLP bundle name then do a
> 'sh proc mem <PID>' for it.
>
> Rodney
>
> On Mon, Jan 17, 2005 at 10:21:28PM -0600, Brian Feeny wrote:
>> Is anyone aware of any problems in 12.2.25S1 that would cause a memory
>> leak in MLP?
>>
>> We have a 7204 that is doing MLP on over 2 T1 lines, running 12.2.25S1
>> for about 4 weeks.  It is out of memory so the CLI is not allowing me
>> to do alot of things (like "show run").
>>
>> I do see however:
>>
>> nwcorp#show mem allocating-process totals
>>                  Head    Total(b)     Used(b)     Free(b)   Lowest(b)
>> Largest(b)
>> Processor   636CBC80    59982720    59793888      188832           0
>>     91024
>>        I/O    7000000    16777216     1635216    15142000    15022688
>> 15134176
>>        PCI   4B000000     4194304      842144     3352160     3352160
>>   3352128
>>
>>
>>
>>
>> Allocator PC Summary for: Processor
>>
>>      PC          Total   Count  Name
>> 0x60B28FF8   40782208  408771  MLP bundle name
>> 0x606F6E08    3840280       5  Init
>> 0x60352590    1937616       2  RMON packet pool
>> 0x60745E50    1302008     143  Interrupt Stack
>> 0x606A6C34     603696     747  *Packet Header*
>> 0x606D9414     560152       1  IDB List Element Chunks
>>
>>
>> I did check Bug Toolkit for anything that hit on MLP, but nothing in
>> there looks like it would cause what I am seeing.  The router is
>> working, and I plan to reload it soon to do more diagnostics, but if
>> anyone knows of this issue, please let me know.
>>
>> Brian
>>
>>
>> Brian Feeny, CCIE #8036, CISSP
>> Network Engineer
>> ShreveNet Inc.
>>
>> _______________________________________________
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>>
---------------------------------------------
Brian Feeny, CCIE #8036, CISSP
Network Engineer
ShreveNet Inc.



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