topic Re: core dump in Operating System - HP-UX

core dump

Lai Nee Shyang_1 — Wed, 21 Mar 2001 09:39:29 GMT

Hi,

I've a question. When a daemon (eg. nfsd) hang and if it does a core dump, will it be at located at "/" or somewhere else. If there is a directory at root "/core" will this prevent the core dump be written to "/" ?

Thanks

Re: core dump

Printaporn_1 — Wed, 21 Mar 2001 09:49:25 GMT

Hi,
Normally core was writen to working directory.

Re: core dump

Thierry Poels_1 — Wed, 21 Mar 2001 09:50:22 GMT

yep, creating a directory named core is an old trick to avoid core dumps.

beware if you automatically remove core dumps to look only for "files" named core
(find ... -name core -type f ....)

Thierry.

Re: core dump

Andreas Voss — Wed, 21 Mar 2001 09:52:33 GMT

Hi,

i've tested this on my test system.
Here is what i get:
If i do a kill -3 it writes a core file at /
With: file /core you get:
core file from 'nfsd' - received SIGQUIT
An yes if i do mkdir /core the nfsd would not write a core file at /

Regards

Re: core dump

Lai Nee Shyang_1 — Wed, 21 Mar 2001 09:56:37 GMT

Thanks guys, u guys r great.

Lai