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Re: [Ada][testsuite] use sync to avoid missing executable

From: Marcin Dalecki <martin at dalecki dot de>
To: Arnaud Charlet <charlet at adacore dot com>
Cc: gcc-patches at gcc dot gnu dot org, Mark Mitchell <mark at codesourcery dot com>,Eric Botcazou <ebotcazou at libertysurf dot fr>,Laurent GUERBY <laurent at guerby dot net>
Date: Mon, 18 Apr 2005 13:40:38 +0200
Subject: Re: [Ada][testsuite] use sync to avoid missing executable
References: <1113636653.29924.231.camel@pc.site> <20050418084404.GA6992@adacore.com>

On 2005-04-18, at 10:44, Arnaud Charlet wrote:

The patch was proposed one week ago here:

http://gcc.gnu.org/ml/gcc/2005-04/msg00432.html

Since I've installed it on my tree, I haven't seen any spurious failure when running ACATS, may be Eric can comment on his own experience too?
Ok for mainline?
Ok for 4.0.1 once 4.0.0 is out?
Really looks like a bug in the linux kernel, but OK to install as a work around.

Sync is makings some memory available to the kernel by cleaning the disk access caches a bit unter Linux. Well those never seriously get clean anytime there but anywy. This may prevent a "wonderfull" facility called Out of Order Memory Killer from engaging, which is responsible for killing randomly processes on your system under memory strain. Please note I know what this OOM does. Still I call it's behavior random fully intentionally.

References:
- [Ada][testsuite] use sync to avoid missing executable
  - From: Laurent GUERBY
- Re: [Ada][testsuite] use sync to avoid missing executable
  - From: Arnaud Charlet

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