System perforamance 4.x vs. 5.x and 6.x

Bill Moran wmoran at
Thu Feb 14 20:26:19 UTC 2008

In response to Brett Bump <bbump at>:
> I'm seeing signal 6's on apache and imapd (never happened before)
> network errors, serious response time errors and generally poor
> performance during peak activity (same box, same people).

IIRC, signal 6 is an indicator that you've compiled binaries that are
almost, but not quite compatible with your CPU.

If this machine has been 4.X for a while, it's probably old hardware.
Make sure you're using the correct CPU definition in your kernel
config and in your make configuration.

What _is_ the hardware?

Bill Moran
Collaborative Fusion Inc.

wmoran at
Phone: 412-422-3463x4023

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