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False disk alerts.

list Neil Simmonds
Wed, 23 Sep 2015 10:30:18 +0100
Message-Id: <user-579d33fefa76@xymon.invalid>

Hi Jeremy, we're running 4.3.4 but it's funny you should mention that bug
as I have found some log messages this morning that say,

 BUG: splitmsg_done() was not called on previous message - data corruption
possible.

These occur at the times that we get the false alerts.

Regards,
Neil.

On Tue, Sep 22, 2015 at 10:30 AM, Jeremy Laidman <user-71895fb2e44c@xymon.invalid>
wrote:
Note the "]" character in the middle of "1K-b]ocks".  This is reminiscent
of a bug that was apparently closed in 4.3.0 (see
http://lists.xymon.com/archive/2011-March/030833.html).  What version are
you running?


On 22 September 2015 at 18:55, Neil Simmonds <user-feff97fabd3d@xymon.invalid>
wrote:
Hi all,
We are having a strange issue on one of our Xymon systems. Occasionally
the disk alert flags but it is due to a malformation of the data. The alert
looks like this,

red Tue Sep 22 01:57:24 2015 - Filesystems NOT ok &red 1K-b]ocks (1 units
free) has reached the PANIC level (524288 units) &red C (0 units free) has
reached the PANIC level (524288 units)


Filesystem

 1K-b]ocks     Used       Avail    Capacity   Total Size   Free Space
Type    Mount Point

C             71114748   16071904   55042844    22%         67.82 GB
52.49 GB   FIXED   N/A

but if I then go to the history and then look at the client data it's
fine.


00.0%  212   svchost.exe       8    0:00:00  NT AUTHORITY\SYSTEM
        13248k

[disk]
Filesystem   1K-blocks     Used       Avail    Capacity   Total Size
Free Space   Type    Mount Point
C             71114748   16071904   55042844    22%         67.82 GB
52.49 GB   FIXED   N/A
[memory]
memory   Total    Used

I've checked to see if there are any strange invisible characters in the
client data but can't see any yet we're getting this peculiar alert.

Server is Linux running Xymon 4.3.4 (same as our other server) and client
is BBWin 0.13.

We have the same combination of client/server versions running on our
other system and have never had anything like this that I am aware of.