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Date:      Wed, 20 Feb 2008 14:55:52 +0100
From:      Ivan Voras <ivoras@freebsd.org>
To:        freebsd-performance@freebsd.org
Subject:   Re: System perforamance 4.x vs. 5.x and 6.x
Message-ID:  <fphbcf$f3l$1@ger.gmane.org>
In-Reply-To: <20080214151614.7fa0c091.wmoran@collaborativefusion.com>
References:  <20080214114759.R75215@mail.rsts.org> <20080214151614.7fa0c091.wmoran@collaborativefusion.com>

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Bill Moran wrote:
> In response to Brett Bump <bbump@rsts.org>:
>> 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).
>=20
> IIRC, signal 6 is an indicator that you've compiled binaries that are
> almost, but not quite compatible with your CPU.

You probably mean signals 4 (SIGILL) or 10 (SIGBUS), rather than 6
(SIGABRT) :)

I was getting a lot of SIGABRTs once, but that turned out to be due to
PHP module order bogosity and linking mismatched threaded libraries into
apache.



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