memory dump HPUX 11i v2

[bouazzaoui]

thank you so much for your detailed answer,
one last question :
crashconf -v
CLASS PAGES INCLUDED IN DUMP DESCRIPTION
-------- ---------- ---------------- -------------------------------------
UNUSED 2745297 no, by default unused pages
USERPG 17445092 no, by default user process pages
BCACHE 917167 no, by default buffer cache pages
KCODE 6928 no, by default kernel code pages
USTACK 39158 yes, by default user process stacks
FSDATA 1 yes, by default file system metadata
KDDATA 1711845 yes, by default kernel dynamic data
KSDATA 2897 yes, by default kernel static data
SUPERPG 60821 no, by default unused kernel super pages
do I need to add unused class as part of dumped infos? or what is configured by default is enough in order to analyse a crash problem?
thanks again for your help

[Mel Burslan]

KCODE and KSDATA ,ight be crucial in some cases to be included in the saved crash dumps. Edit /etc/rc.config.d/crashconf file and add these two keywords to the line starting with CRASH_INCLUDED_PAGES, separated by spaces, in between the double quotes.

Make sure the variable CRASHCONF_ENABLED is set to 1, closer to the top of this file.

Last but not the least, make sure you have enough space in /var/adm/crash to accomodate such big dumps.

[bouazzaoui]

thanks MEL,
I think I have all info I need so I think I'll close the thread completely satisfied :

thank you all for the effort and enjoy your life!

[bouazzaoui]

problem solved!(see above)

[Mark S Meadows]

Hi,

I normally find that the default list of pages classes configured sufficient.

Occassionally the HP Response Centre may request additional classes to be configured into your dump in order to further diagnose a particullar problem.

The classes that you have configured into your crash dump are the same as those listed on my own systems as per the above listings.

I would run with what you have, which is the default list.

For information, we currently have /var/adm/crash set to 16Gb :

# bdf /var/adm/crash
Filesystem kbytes used avail %used Mounted on
/dev/vg00/lvol10 16777216 70414 15662698 0% /var/adm/crash

Normally it is set 8Gb, but extended it recently due to a reoccurring problem that we were trying to get to the bottom of and needed more space to store and keep the crash dumps :

# bdf /var/adm/crash
Filesystem kbytes used avail %used Mounted on
/dev/vg00/lvol10 8388608 432438 7458980 5% /var/adm/crash

8Gb should be sufficient, which is what we have on the system listed above with 229 Gb Ram.

# machinfo | grep -i mem
Memory: 229134 MB (223.76 GB)

Regards,

Mark