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References: <200407121943.25196.devenyga@mcmaster.ca> <20040713024051.GQ21066@holomorphy.com> <200407122248.50377.devenyga@mcmaster.ca>
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From: Con Kolivas <kernel@kolivas.org>
To: Gabriel Devenyi <devenyga@mcmaster.ca>
Cc: ck@vds.kolivas.org, linux-kernel@vger.kernel.org,
       William Lee Irwin III <wli@holomorphy.com>, akpm@osdl.org
Subject: Re: Preempt Threshold Measurements
Date: Tue, 13 Jul 2004 12:54:50 +1000
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Gabriel Devenyi writes:

> Well I'm not particularly educated in kernel internals yet, here's some 
> reports from the system when its running.
> 
> 6ms non-preemptible critical section violated 4 ms preempt threshold starting 
> at do_munmap+0xd2/0x140 and ending at do_munmap+0xeb/0x140

Certainly the do_munmap and exit_mmap seem to be repeat offenders on my 
machine too (more the latter in my case).

Con.