Re: PHP Source Dump

On Sat, 9 Dec 2000, Richard Lynch wrote: > Since the current theory is that it happens when somebody is editing the > config file and/or httpd is starting up or shutting down, Another possibility which occured to me later was that somebody upgraded PHP on the web-server (we are using apxs): 1. Apache is running with PHP as a DSO 2. a new PHP DSO is installed over the old libphp4.so binary 3. Apache tries to serve a new request and passes that to PHP AFAIK relocatable shared libraries under Linux are simply mmap'ed into the process virtual memory space. Changes in the underlying file are instantly reflected in the virtual memory space. So, by simply installing a new DSO we might have created a situation where some entry points had changed in a way which caused PHP to serve some bogus document, instead of immediately segfaulting. I might be way off here, but that it is one of the few situations which would explain James' observations and might serve as an explanation for Derick's experience as well. Derick, what do you think? - Sascha