On 13-12-09 06:47 PM, Adrian Zaugg wrote:
The only suspicious thing I see on the failing box are some of such
messages:
kernel: pid 37699 (php), uid 0: exited on signal 11 (core dumped)
They are not in an obvious relation to an ethernet event.
Spurious signal 11 (SEGV) messages tend to indicate faulty hardware, in
my experience.
Most typically, bad or marginal RAM.
That can in turn be caused by bad or marginal power - both the PSU and
the circuitry on the motherboard.
Although this may sound bizarre, check your motherboard(s) for bulging
or leaking capacitors.
It's entirely possible that the increased power draw as both CPU and
Ethernet interface start to get busier is enough to cause a transient
error. I've seen many motherboard with bad capacitors that work fine at
idle and fail under load due to increased power draw.
Of course, this may not be your problem at all, but it's worth
eliminating. Remember that when it comes to failing components,
replacing a suspect piece of hardware with an identical piece of
hardware of roughly the same age (e.g. you have a spare in storage) does
NOT prove anything - particularly with faulty capacitors, hardware can
develop faults while sitting in a box on a shelf.
--
-Adam Thompson
[email protected]
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