High CPU utilisation on 6509 switch

Unanswered Question
Jul 19th, 2010

Hi,

My Cisco 6509 switch 100% utilisation for more than 3 hrs now. When I used the command "show process cpu" i got the below output,

16407    97.2%   95.9%    96.0% ios-base

Can you please let me know why the CPU threshold is very high ?

Thanks & Regards

Murali

I have this problem too.
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burleyman Mon, 07/19/2010 - 08:11

Can you run the following command and post the output.

Show tcp brief

Mike

Muralikrishnan_P Mon, 07/19/2010 - 08:45

Hi,

Please find the output of "show tcp brief"

TCB Local Address Foreign Address (state)

010A0110 10.24.8.2:22 10.24.19.251:4219 ESTAB

Regards

Murali

burleyman Mon, 07/19/2010 - 09:37

Run this command and see if the CPU goes back to normal.

clear tcp tcb 010A0110

Do not telnet into the switch after you run this command. Only go in through the Console port itself.

Muralikrishnan_P Mon, 07/19/2010 - 09:51

Hi,

I tried this command but no luck,

CPU utilization for five seconds: 100%; one minute: 100%; five minutes: 100%

PID 5Sec 1Min 5Min Process

1 0.1% 0.4% 0.8% kernel

3 0.0% 0.0% 0.0% devc-pty

4 0.0% 0.0% 0.0% devc-mistral.proc

5 0.0% 0.0% 0.0% pipe

4102 0.0% 0.0% 0.0% dumper.proc

4103 0.0% 0.0% 0.0% pcmcia_driver.proc

4104 0.0% 0.0% 0.0% bflash_driver.proc

12297 0.0% 0.0% 0.0% mqueue

12298 0.0% 0.0% 0.0% flashfs_hes.proc

12299 0.0% 0.0% 0.0% dfs_bootdisk.proc

12300 0.0% 0.0% 0.0% ldcache.proc

12301 0.0% 0.0% 0.0% watchdog.proc

12302 0.0% 0.0% 0.0% syslogd.proc

12303 0.0% 0.0% 0.0% name_svr.proc

12304 0.0% 0.0% 0.0% wdsysmon.proc

12305 0.0% 0.0% 0.0% sysmgr.proc

16386 0.0% 0.0% 0.0% chkptd.proc

16402 0.0% 0.0% 0.0% sysmgr.proc

16403 0.0% 0.0% 0.0% syslog_dev.proc

16404 0.0% 0.0% 0.0% itrace_exec.proc

16405 0.0% 0.0% 0.0% packet.proc

PID 5Sec 1Min 5Min Process

16406 0.0% 0.0% 0.0% installer.proc

16407 97.9% 97.5% 97.1% ios-base

16408 0.0% 0.0% 0.0% fh_fd_rf.proc

16409 0.0% 0.0% 0.0% fh_fd_oir.proc

16410 0.0% 0.0% 0.0% fh_fd_env.proc

16411 0.0% 0.0% 0.0% fh_fd_cli.proc

16412 0.0% 0.0% 0.0% fh_metric_dir.proc

16413 0.0% 0.0% 0.0% fh_fd_test.proc

16414 0.0% 0.0% 0.0% fh_fd_snmp.proc

16415 0.0% 0.0% 0.0% fh_fd_none.proc

16416 0.0% 0.0% 0.0% fh_fd_intf.proc

16417 0.0% 0.0% 0.0% fh_fd_gold.proc

16418 0.0% 0.0% 0.0% fh_fd_timer.proc

16419 0.0% 0.0% 0.0% fh_fd_ioswd.proc

16420 0.0% 0.0% 0.0% fh_fd_counter.proc

16421 0.0% 0.0% 0.0% fh_server.proc

16422 0.0% 0.0% 0.0% fh_policy_dir.proc

16423 0.0% 0.0% 0.0% call_home.proc

Please find the output attached.

Regards

Murali

Edison Ortiz Mon, 07/19/2010 - 10:30

Murali,

My suggestion is to open a TAC case for proper troubleshooting. It seems you are running the modular IOS version on this 6500 and you may be experiencing a memory leak. TAC can indicate if there is a bug on the IOS that you are running and provide an IOS recommendation with the bug fix.

Regards,

Edison.

datapex Mon, 07/19/2010 - 13:11

I'm not sure what ios rev you're running but there is a memory corruption issue with 12.2(33)SXI3 - bugid CSCtb34857 - crashed seen in xdr_reference.

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