[ic] IC + RedHat 7.x + Apache 1.3 = Segmentation fault?

[Ed LaFrance]

Hi all -

As a result of my consulting business I have access to may servers, and 
I've noticed a condition that appears in varying degrees on just about any 
machine that is running RH 7.x or a similar flavor of *nix, Apache 1.3x and 
Just about any Interchange version. The apache error_log on said machine 
contains entries like this:

[Sun Sep 23 09:45:22 2001] [notice] child pid 6913 exit signal Segmentation 
fault (11)
[Thu Sep 27 13:58:00 2001] [notice] child pid 7236 exit signal Segmentation 
fault (11)

Frequency may be once a month, once a day or once every ten minutes - it 
seems to depend upon how may IC daemons are running on the server (all 
other things being equal, more daemons = more frequent segfaults).

There is no discernable performance impact or other undesirable 
manifestation that I can detect, other than the error_log being larger than 
it would otherwise. I tried to compare the error_log entries to those in 
access_log and the system messages log, but have not found any pattern of 
correspondence.

Because the properties of sampled severs do vary, the only thing I can say 
with reasonable certainty is that I've only seen this on machines running 
Interchange - spot checks of a few that don't show no such error_log entries.

Can anyone comment on this. At first glance, lack of physical RAM was 
highly suspect, but so far tests with greatly increasing RAM and greatly 
reducing apache MaxClients has only freed up memory - frequency of the 
annoying error_log entries has not dimished. I have not yet played with IC 
server settings, but FWIW, in most cases it is running n low traffic mode 
with the default settings for the same. IC version varies widely.

TIA for comments,


Ed L.

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