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and subject line Bug#272231: possible g++ memory leakage
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Received: (at submit) by bugs.debian.org; 18 Sep 2004 15:03:17 +0000
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Date: Sat, 18 Sep 2004 17:03:34 +0200
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Subject: possible g++ memory leakage
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Package: g++
Version: 3.3.4-2
Severity: important

When building the latest (0.16) mythtv with apt-build,
at file globalsettings.cpp g++ slowly eats up all the
memory the machine has (no matter how much), then dies
with inertal error (probably gets oomkilled).

Reproducing the error: (Debian unstable, as of 2004-09-18)
1., Add (if not already there) to /etc/apt/sources.list :
deb http://dijkstra.csh.rit.edu/~mdz/debian unstable mythtv
2., Install (if you don't yet have it) apt-build :
apt-get install apt-build && apt-get update
3., Set -O3 -march=k6-3 -mcpu=k6-3 (probably optional) in
/etc/apt/apt-build.conf
4., Install mythtv with apt-build :
apt-build install
5., Wait...
The error will appear when globalsettings.cpp gets compiled.
(Takes quite long) You can start a "watch free" to see
the memory leakage.

Kernel: Linux 2.6.5 official source


Lorand Szollosi <[EMAIL PROTECTED]>
-lorro

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Received: (at 272231-done) by bugs.debian.org; 20 Sep 2004 06:54:27 +0000
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Date: Mon, 20 Sep 2004 08:54:23 +0200
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Subject: Re: Bug#272231: possible g++ memory leakage
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[EMAIL PROTECTED] writes:
> > the file compiles fine, although the peak memory usage is at about
> > 460MB. please add more swap space and retry.
> Sorry, you are rigth. After adding another 600MB swap the
> compile went fine. So the 'bug' is resolved.
> btw, is it normal that a compile eats up this much space?
> Is there any way to avoid it when writing new code?

g++-3.4 is definitely better in memory usage, although to test this
you would have to recompile all C++ dependent build dependencies
first.


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