The server hung up again since Sunday evening. I asked the technician
who attended on the server as we conversed via phone and he relayed
that the server is no longer responding, the screen displayes "call
trace", "journal remove" and kernel thread" messages along with what I
believe were core dumps.

Does it mean the system hung due to running out of physical memory? If
memory resource exhaustion is the reason, what could be the cuplrit?
This server was running OK from November last year up until around
late February this year, then exhibited this behavior. Worse, this
seems to be getting more often, it happened just last week.

Would running both web and database in a server cause this? Last year,
the database server hanged. Could it be that the database is the choke
point? The PHP scripts accessing it were written in a way that only
one persistent connection is used by all sessions, and I believe
there's no script in there written to close any opened connection.
Could this be the problem?

This database server was installed from i686 RPM, I downloaded the
binary package straight from the database server's home site (mirrored
in Asia via Japan).

Is there also a possibility that PHP scripts accessing data from the
database server drive that server out of memory or just drive it
crazy?

I'm basically a newbie on these possibilities and could use all the
help I can get. Thank you very much in advance.

On 4/1/06, Miguel A Paraz <[EMAIL PROTECTED]> wrote:
> On 3/28/06, Tito Mari Francis Escaño <[EMAIL PROTECTED]> wrote:
> > Our server is an ASUS AP1600 S5 dual-Xeon 1U server
>
>
> I think this is key. Hard hang, no dmesg output? Might be an SMP
> problem with the chipset.
>
> How about running it in uniprocessor mode first?
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--
Tito Mari Francis H. Escaño
Computer Engineer and Free Software Proponent
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