This appears in Debian Lenny / Apache 2 logfiles:
[notice] child pid ... exit signal Segmentation fault (11)
Sometimes it appears once a month, sometimes once a week. Since yesterday this error appears in logfiles 2-3 times per hour. No other errors.
I have only 1 website running, no other people on the server. I didn't change anything on the server - didn't update anything, didn't change any scripts, didn't upload new scripts, nothing. There are no scripts which are being used only sometimes so, if segmentation fault is being caused by some php script, such errors should appear all the time, not only sometimes.
Server load under 1.
Any ideas what can cause this error and why it appears only sometimes and why the number of this error increases?
What are the consequences of this error? What happends on the server when it occurs? May I just ignore it?