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List:       webmin-l
Subject:    [webmin-l] kernel: double fault, gdt at dfd3b000 [255 bytes]
From:       Andrea Lanza <andrea.lanza () frameweb ! it>
Date:       2008-01-31 8:43:44
Message-ID: 0D5027AB30939448A3DEEE91A66C7197D9ED5EE969 () srvge04 ! frameweb ! it
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Hi all,
I had the following problem last night:

Jan 30 21:41:51 srvvmware02 kernel: double fault, gdt at dfd3b000 [255
bytes]
-----
The server is an Opensuse 10.2, kernel 2.6.18.8-0.7-bigsmp 
Webmin version is 1.390
perl -v reports:
This is perl, v5.8.8 built for i586-linux-thread-multi
-----
What make me relate this with webmin is I have scheduled (within webmin) an
automatic modules update at 21.42.

looking at /var/log/messages for other days and for last night looks like
this:

Jan 25 18:00:37 srvvmware02 syslog-ng[2821]: STATS: dropped 0
Jan 25 19:00:37 srvvmware02 syslog-ng[2821]: STATS: dropped 0
Jan 25 20:00:37 srvvmware02 syslog-ng[2821]: STATS: dropped 0
Jan 25 21:00:37 srvvmware02 syslog-ng[2821]: STATS: dropped 0
Jan 25 21:42:01 srvvmware02 /usr/sbin/cron[27013]: (root) CMD
(/etc/webmin/webmin/update.pl)
Jan 25 22:00:38 srvvmware02 syslog-ng[2821]: STATS: dropped 0
Jan 25 23:00:38 srvvmware02 syslog-ng[2821]: STATS: dropped 0
......
Jan 28 18:55:04 srvvmware02 syslog-ng[2822]: STATS: dropped 0
Jan 28 19:55:04 srvvmware02 syslog-ng[2822]: STATS: dropped 0
Jan 28 20:55:04 srvvmware02 syslog-ng[2822]: STATS: dropped 0
Jan 28 21:42:01 srvvmware02 /usr/sbin/cron[5491]: (root) CMD
(/etc/webmin/webmin/update.pl)
Jan 28 21:55:04 srvvmware02 syslog-ng[2822]: STATS: dropped 0
Jan 28 22:55:04 srvvmware02 syslog-ng[2822]: STATS: dropped 0
Jan 28 23:55:04 srvvmware02 syslog-ng[2822]: STATS: dropped 0
...
Jan 29 18:55:08 srvvmware02 syslog-ng[2822]: STATS: dropped 0
Jan 29 19:55:08 srvvmware02 syslog-ng[2822]: STATS: dropped 0
Jan 29 20:55:09 srvvmware02 syslog-ng[2822]: STATS: dropped 0
Jan 29 21:42:01 srvvmware02 /usr/sbin/cron[7969]: (root) CMD
(/etc/webmin/webmin/update.pl)
Jan 29 21:55:09 srvvmware02 syslog-ng[2822]: STATS: dropped 0
Jan 29 22:55:09 srvvmware02 syslog-ng[2822]: STATS: dropped 0
....
Jan 30 18:55:13 srvvmware02 syslog-ng[2822]: STATS: dropped 0
Jan 30 19:55:14 srvvmware02 syslog-ng[2822]: STATS: dropped 0
Jan 30 20:55:14 srvvmware02 syslog-ng[2822]: STATS: dropped 0
Jan 30 21:41:51 srvvmware02 kernel: double fault, gdt at dfd3b000 [255
bytes]
Jan 30 21:55:15 srvvmware02 syslog-ng[2822]: STATS: dropped 0
Jan 30 22:55:15 srvvmware02 syslog-ng[2822]: STATS: dropped 0
Jan 30 23:55:15 srvvmware02 syslog-ng[2822]: STATS: dropped 0

At that point the server was in a strange state: I could ping it, but I
cannot ping any
of the four virtual machines running inside it (it is a vmware server).

I could not shutdown it,nor issue CTRL+ALT+DEL, nor "reboot", also I could
issue command at the console:
I succeded in stopping xinetd i.e.

But I could not issue ifconfig: I had no answer.. but it was not frozen: I
could send this command in background.

Anyway my question is: is there a place where to check if webmin is really
related to this issue ? an update log ?

I scheduled automatical update in order to send me a report: looking at mail
log, almost all days at 21:42:07 
it sends me an email, but not last night, of course.

thanks in advance,
Andrea






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