Posted by Raditha Dissanayake on 01/10/05 02:58

Alex Greg wrote:

>(apologies if this reaches the list twice - the first time I sent it,
>it didn't arrive within 12 hours)
>
>Hi,
>
>Recently I migrated the front-end of our bulletin board (running
>phpBB, patched against the recently highlight vulnerability) to a pair
>of servers running Fedora Core 3. I compiled Apache 1.3.33 and PHP
>4.3.10 from source. The MySQL database is running on a separate machine.
>
>This morning, the servers slowed down to the point that they were
>almost completely unresponsive. After a while I managed to SSH into
>the machines and saw that the httpd processes had grown to 35MB each
>and were using up all the swap and RAM on the machines (they have 1GB
>RAM, 1GB swap). I then set MaxClients to 30 and restarted Apache, but
>the slowdown happened again:
>
>
>I then checked the error log and found this:
>
>*** glibc detected *** double free or corruption: 0x097ec7e8 ***
>
>
Quite curiously I had this same problem just yesterday and spent quite a
bit of time scratching around trying to get it to work again. I upgraded
all of apache, glibc and php to know avail. Though this error had been
seen many times before by others i found nothing relevent in google. In
my case however it turned out to be a really trivial and stupid mistake:
I had AddModule lines for the both the PHP4 and PHP5 SO in my httpd.conf
file. Please check your own httpd.conf file. If not that it could also
be conflicting extensions.

>
>


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Raditha Dissanayake.
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