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<div>Hi all</div>
<div> </div>
<div>Devmon was causing the hobbitd_rrd module to crash and burn.</div>
<div>Now this could be a bug, but it could also be a PEBKAC. I am hoping somebody can assist either way.</div>
<div> </div>
<div>I added a Cisco 2851 to Hobbit, using devmon.</div>
<div>Now here is the possible PEBKAC</div>
<div>Since Devmon doesn't have templates for the 2851, I used the template for the Cisco 2811. (Network guru told me they are pretty much the same, except for a few extra bells and whistles on the 2851.)</div>
<div> </div>
<div>The data for the device started appearing in Hobbit, and all looked good. Devmon even created the rrd files for the new Cisco device.</div>
<div> </div>
<div>However, the hobbitd_rrd module started core dumping, and the Hobbit server page started displaying red for hobbitd_rrd with the crash detected message.</div>
<div>See core data below.</div>
<div>Took the new Cisco device out of Hobbit, and cores stopped, and life was good again.</div>
<div> </div>
<div>Is there a significant enough difference between the 2851 and the 2811 to cause this, or are we looking at a genuine bug?</div>
<div>I am leaning towards a bug, because even if the collected data was complete rubbish, should it cause the module to core?</div>
<div> </div>
<div>Regards</div>
<div> Vernon</div>
<div> </div>
<div>My Linux guy reckons this is the important stuff from the core.</div>
<div><font face="Courier New, monospace">uname -a</font></div>
<div><font face="Courier New, monospace">Linux las006 2.6.18-92.1.1.el5 #1 SMP Thu May 22 09:01:47 EDT 2008 x86_64 x86_64 x86_64 GNU/Linux cat /etc/redhat-release Red Hat Enterprise Linux Client release 5.2 (Tikanga)</font></div>
<div><font face="Courier New, monospace"> </font></div>
<div><font face="Courier New, monospace">gdb -c core.8550 /usr/lib/hobbit/server/bin/hobbitd_rrd</font></div>
<div><font face="Courier New, monospace">GNU gdb Red Hat Linux (6.5-37.el5_2.1rh) Copyright (C) 2006 Free Software Foundation, Inc.</font></div>
<div><font face="Courier New, monospace">GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions.</font></div>
<div><font face="Courier New, monospace">Type "show copying" to see the conditions.</font></div>
<div><font face="Courier New, monospace">There is absolutely no warranty for GDB. Type "show warranty" for details.</font></div>
<div><font face="Courier New, monospace">This GDB was configured as "x86_64-redhat-linux-gnu"...Using host libthread_db library "/lib64/libthread_db.so.1".</font></div>
<div><font face="Courier New, monospace"> </font></div>
<div><font face="Courier New, monospace">Reading symbols from /usr/lib64/librrd.so.2...done.</font></div>
<div><font face="Courier New, monospace">Loaded symbols for /usr/lib64/librrd.so.2 Reading symbols from /usr/lib64/libpng12.so.0...done.</font></div>
<div><font face="Courier New, monospace">Loaded symbols for /usr/lib64/libpng12.so.0 Reading symbols from /lib64/libpcre.so.0...done.</font></div>
<div><font face="Courier New, monospace">Loaded symbols for /lib64/libpcre.so.0</font></div>
<div><font face="Courier New, monospace">Reading symbols from /lib64/libc.so.6...done.</font></div>
<div><font face="Courier New, monospace">Loaded symbols for /lib64/libc.so.6</font></div>
<div><font face="Courier New, monospace">Reading symbols from /usr/lib64/libfreetype.so.6...done.</font></div>
<div><font face="Courier New, monospace">Loaded symbols for /usr/lib64/libfreetype.so.6 Reading symbols from /usr/lib64/libz.so.1...done.</font></div>
<div><font face="Courier New, monospace">Loaded symbols for /usr/lib64/libz.so.1</font></div>
<div><font face="Courier New, monospace">Reading symbols from /usr/lib64/libart_lgpl_2.so.2...done.</font></div>
<div><font face="Courier New, monospace">Loaded symbols for /usr/lib64/libart_lgpl_2.so.2 Reading symbols from /lib64/libm.so.6...done.</font></div>
<div><font face="Courier New, monospace">Loaded symbols for /lib64/libm.so.6</font></div>
<div><font face="Courier New, monospace">Reading symbols from /lib64/ld-linux-x86-64.so.2...done.</font></div>
<div><font face="Courier New, monospace">Loaded symbols for /lib64/ld-linux-x86-64.so.2 Core was generated by `hobbitd_rrd --rrddir=/var/lib/hobbit/rrd --debug'.</font></div>
<div><font face="Courier New, monospace">Program terminated with signal 6, Aborted.</font></div>
<div><font face="Courier New, monospace">#0 0x0000003db7a30155 in raise () from /lib64/libc.so.6</font></div>
<div><font face="Courier New, monospace">(gdb) bt</font></div>
<div><font face="Courier New, monospace">#0 0x0000003db7a30155 in raise () from /lib64/libc.so.6</font></div>
<div><font face="Courier New, monospace">#1 0x0000003db7a31bf0 in abort () from /lib64/libc.so.6</font></div>
<div><font face="Courier New, monospace">#2 0x00000000004119f3 in sigsegv_handler (signum=<value optimized out>) at sig.c:57</font></div>
<div><font face="Courier New, monospace">#3 <signal handler called></font></div>
<div><font face="Courier New, monospace">#4 0x0000003db7a77ac0 in strcat () from /lib64/libc.so.6</font></div>
<div><font face="Courier New, monospace">#5 0x000000000040462a in do_devmon_rrd (hostname=0x2ada311e2806 "PERIR205", testname=0x2ada311e280f "if_load", msg=<value optimized out>, tstamp=<value optimized out>)</font></div>
<div><font face="Courier New, monospace"> at rrd/do_devmon.c:87</font></div>
<div><font face="Courier New, monospace">#6 0x000000000040b656 in update_rrd (hostname=0x2ada311e2806 "PERIR205", testname=0x2ada311e280f "if_load",</font></div>
<div><font face="Courier New, monospace"> msg=0x2ada311e2842 "status PERIR205.if_load green Fri Oct 31 10:31:39 2008", tstamp=1225416699, sender=<value optimized out>, ldef=0xfeffffffffffff00) at do_rrd.c:372</font></div>
<div><font face="Courier New, monospace">#7 0x000000000040261d in main (argc=<value optimized out>, argv=0x7fff7a088318) at hobbitd_rrd.c:153</font></div>
<div><font face="Courier New, monospace">(gdb) </font></div>
<div><font face="Courier New, monospace"> </font></div>
<div> </div>
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