linux-kernel - Re: kbuild: modules_install regression ?

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Date:	Fri, 28 Dec 2007 16:08:19 +0100
From:	devzero@....de
To:	linux-kernel@...r.kernel.org
Cc:	dl9pf@....de
Subject: Re: kbuild: modules_install regression ? - depmod

i have the same issue, but with 2.6.24-rc6 on a box with 512MB RAM

System is openSUSE 10.3

on "make modules_install" , depmod reproduceably dies with out of memory error when it is ~800MB VSZ and ~350MB RSS
this happens on different hardware.

any clue what`s going wrong?
how much memory should i expect being needed with "make modules_install" , e.g. with allmodconfig ?

Subject:    kbuild: modules_install regression ? - depmod
From:       Jan-Simon =?utf-8?q?M=C3=B6ller?= <dl9pf () gmx ! de>
Date:       2007-11-01 4:14:34
Message-ID: 200711010514.34469.dl9pf () gmx ! de
[Download message RAW]

Hi!

I compiled kernel 2.6.24-rc1 (latest git as of today) on a Box with 256MB Ram.
During "make modules_install" I got these errors:

  DEPMOD  2.6.24-rc1-default
WARNING: Can't read 
module /lib/modules/2.6.24-rc1-default/kernel/net/bridge/bridge.ko: Cannot 
allocate memory
WARNING: Can't read 
module /lib/modules/2.6.24-rc1-default/kernel/net/bridge/netfilter/ebt_redirect.ko: 
Cannot allocate memory
[...]
FATAL: Memory allocation failure depmod.c line 158: realloc(mod->deps, 
sizeof(mod->deps[0])*(mod->num_deps+1)).
make: *** [_modinst_post] Fehler 1

Depmod used too much memory and exits. Tried a 2nd time and checked with top.

IMHO this is a regression.

best regards
jan-simon

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