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3750 - High Sustained CPU - HULC DAI Process

Hello.

We have a couple of 3750 switch stacks that have been sustaining cpu of 99%.  They've been this way for more than 24 hours, and not sure what is causing the issue.  We tried doing a reload of the switch this morning but the cpu came right back up to 99% after the reload.  Here is the sh proc cpu:


Br-327-3750-Admin#sh proc cpu sorted
CPU utilization for five seconds:  100%/10%; one minute: 99%; five minutes: 99%
PID Runtime(ms)   Invoked       uSecs   5Sec   1Min   5Min TTY Process
170   212128678 162676677       1303  65.23% 65.81% 65.76%   0 HULC DAI Process
  77    31557079 244150005         129 10.36% 10.26% 10.21%   0 HLFM address lea
135    56832130  196397793        289  2.55%  2.93%  2.98%   0 Hulc LED Process
237     56318985  18360226       3067  0.63%  0.42%  0.46%   0 Marvell wk-a  Pow
205    67890494 168277229        403  0.63%  0.46%  0.47%   0 Spanning  Tree
101    24887317  89295971        278  0.63%  0.50%  0.44%   0 HRPC  pm-counters
  63    12360872 437007936         28  0.63%  0.27%  0.24%   0  Fifo Error Detec
155    20428352   8320260       2455  0.47%  0.35%  0.32%    0 PI MATM Aging Pr
175     3584095   4908931        730  0.31%  0.05%   0.04%   0 Port-Security
144    44080904  20086076       2194  0.31%  0.24%   0.26%   0 HRPC qos request
192    33579091  49757829        674  0.31%   0.45%  0.43%   0 CDP Protocol
  67    51142477 163092690        313  0.31%   0.36%  0.35%   0 hrpc <- response
100    22326991  17338923       1287   0.31%  0.27%  0.29%   0 hpm counter proc
  78      684742   8321467          82  0.15%  0.03%  0.00%   0 HLFM aging proce
153     8629798   15205139        567  0.15%  0.06%  0.01%   0 HL2MCM
199      964475    5870158        164  0.15%  0.02%  0.00%   0 IP Input
  66     1431581   55879102         25  0.15%  0.01%  0.00%   0 hrpc -> request
291     14162665  18379505        770  0.15%  0.13%  0.14%   0 SNMP ENGINE
143      3628971   1681067       2158  0.15%  0.14%  0.15%   0 HQM Stack  Proces
137     1990866  16641527        119  0.15%  0.02%  0.00%   0 HRPC  hl3u reques
  42     3021743   1687781       1790  0.15%  0.11%  0.10%   0  Compute load avg
  91     2887841  24044166        120  0.15%  0.04%  0.01%    0 HRPC ilp request
174      409825   8421668         48  0.15%  0.11%   0.14%   0 UDLD
185      411968  82459173          4  0.15%  0.07%  0.05%   0  MDFS MFIB Proces
  24         218        27       8074  0.00%  0.00%  0.00%    0 PrstVbl
  23           0         1          0  0.00%  0.00%  0.00%   0 IPC  Session Serv
...

Here is our sh ver:

Br-375-3750#sh ver
Cisco IOS Software, C3750 Software (C3750-IPBASE-M), Version 12.2(52)SE, RELEASE SOFTWARE (fc3)
Copyright (c) 1986-2009 by Cisco Systems, Inc.
Compiled Fri 25-Sep-09 02:53 by sasyamal
Image text-base: 0x01000000, data-base: 0x02A00000

ROM: Bootstrap program is C3750 boot loader
BOOTLDR: C3750 Boot Loader (C3750-HBOOT-M) Version 12.2(44)SE5, RELEASE SOFTWARE (fc1)

Br-375-3750 uptime is 1 hour, 27 minutes
System returned to ROM by power-on
System restarted at 11:15:54 UTC Fri Mar 26 2010
System image file is "flash:c3750-ipbase-mz.122-52.SE/c3750-ipbase-mz.122-52.SE.bin"

Any thoughts on what might be causing this issue?

Thanks.
1 REPLY
VIP Super Bronze

Re: 3750 - High Sustained CPU - HULC DAI Process

Hi Jorchard,

Check your config to see if you have a default route configured pointing to an interface instead the IP address as seen below:

ip route 0.0.0.0 0.0.0.0 Fastethernet0/0

If yes change the default route to point to on IP address and check the CPU utilization again.

Here is the document for more info:

http://www.cisco.com/en/US/products/hw/switches/ps5023/products_tech_note09186a00807213f5.shtml

HTH

Reza

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