From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?UTF-8?Q?Court=C3=A8s?=)
Subject: bug#21720: Building gcc fails at target s-attrtab
Date: Sun, 25 Oct 2015 22:05:07 +0100
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To: Aljosha Papsch <lists@rpapsch.de>
Cc: 21720@debbugs.gnu.org

Aljosha Papsch <lists@rpapsch.de> skribis:

> On 21.10.2015 18:38, Ludovic Court=C3=A8s wrote:

[...]

>> How much memory does this machine have?
> It got 4GB of RAM but none of swap. dmesg really shows something,
> please see attachment. I'll try hooking up some swap and see how it
> goes.
>
> I'm curious: How did you compile gcc in the past, where resources were
> even more scarce? Did you always have a good load of swap for it to
> succeed? I remember the rule "swap is 2 times ram", though in recent
> years some are convinced that it worn off given the ever bigger RAM.

I regularly build it on my laptop, which has 8G of RAM and little swap.
The build machines behind hydra.gnu.org all have more than 4G of RAM, I
think.

> [ 2779.152334] genattrtab invoked oom-killer: gfp_mask=3D0x280da, order=
=3D0, oom_score_adj=3D0

Indeed, =E2=80=98genattrtab=E2=80=99 is a program in GCC used when building=
 it.  It=E2=80=99s a
problem that it needs so much memory.  I would suggest reporting it if
nobody did that already.

Thanks,
Ludo=E2=80=99.