FWSM missing logging messages

[klaitila]

Randomly some logging messages are missing from loggging buffer in FWSM.

FWSM Ver. 3.1(11)

Logging queue seems to be ok:

XXX/act# sh logging queue

Logging Queue length limit : 2024 msg(s)

0 msg(s) discarded due to queue overflow

0 msg(s) discarded due to memory allocation failure

Current 149 msg on queue, 475 msgs most on queue

XXXX/act#

Any idea, which could solve the problem?

[plumbis]

This could be related to the CPU as the syslogs are generated on the CP. If you are generating a large number of syslogs during a period of high CPU it's very possible that this was the cause of syslog messages being dropped.

[klaitila]

CPU util is not more than 20% in peak and still missing syslog messages occurs.

XXXX/act# sh cpu usage

CPU utilization for 5 seconds = 10%; 1 minute: 5%; 5 minutes: 5%

We have 35 contexts and about 150 vlans, but all the resource counters seems to be ok. Not iven clouse the limits...