utmpd/wtmpx/last problem

From: Sal Serafino (serafino@cshl.edu)
Date: Wed Mar 24 2004 - 10:32:52 EST


Hi all-

I have an Ultra-5 running Solaris-8, 108528-29. The problem is that after about
a week and a half, or about a dozen logons, 'last' reports a mystery session
that started Dec 31 and is still logged on. Subsequent sessions are logged in
/var/adm/wtmpx (I checked with a binary editor) but the database appears to be
corrupted somehow. The /var filesystem is about 56% full and has over 400MB
free. It's not a space issue because /var/adm/wtmpx is being updated. I looked
in the software registry, and the file /usr/bin/last checks out.

I have *many* other Solaris-8 machines of all sorts at this patch level and
slightly lower, and none of them has ever had this problem. This machine has
always had this issue since it was upgraded from Solaris-7. The other machines
are both servers and workstations, most of them were fresh installs, but a few
were upgrades from Solaris-2.6.

Any ideas?

Thanks

-Sal

Sal Serafino
UNIX Administrator
Cold Spring Harbor Laboratory
516-367-8498
516-367-8818 fax
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