Re: Core Dump Trouble

• To: ldm-users@xxxxxxxxxxxxxxxx
• Subject: Re: Core Dump Trouble
• From: Robert Mullenax <rmullenax@xxxxxxxxxxxx>
• Date: Mon, 20 May 2002 19:06:41 -0500

This is one of the trade offs with Linux..you get a very fast file
system but data is easily corrupted as compared to Solaris.

-----Original Message-----
> From: Kevin W. Thomas
Sent: 5/20/02 6:02 PM

>I have two workstations running LDM, and until recently, without
problems.
>Both are similarly configured.  One workstation is starting to have
core dumps
>every two to three days.  I've had "rpc.ldmd" dump core twice, and
"dcuair"
>once.  In all three cases, the problem was a segmentation violation.
The
>second workstation isn't experiencing these problems.
>
>Unfortunately, the workstation that is causing me problems will be
needed to
>be running 24/7 in the near future.
>
>Has anyone else seen a similar problem?
>
>Does anyone have any program/scripts that watches for LDM failures and
>restarts things?  If so, I'd be interested.

I believe I finally have an answer for our problem.  We had a corrupted
filesystem.  The filesystem was repaired a week ago.  I haven't had any
problems since.

It seems that the Linux OS gets very confused in its bookkeeping when a
filesystem fills up.  We've seen this many times, and the end results is
always lots of corrupted files.

        Kevin W. Thomas
        Center for Analysis and Prediction of Storms
        University of Oklahoma
        Norman, Oklahoma
        Email:  kwthomas@xxxxxx