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Date: Thu, 4 Dec 2003 19:42:48 +0100
From: Jens Axboe <axboe@suse.de>
To: Peter Bergmann <bergmann.peter@gmx.net>
Cc: Maciej Zenczykowski <maze@cela.pl>, linux-kernel@vger.kernel.org
Subject: Re: oom killer in 2.4.23
Message-ID: <20031204184248.GJ1086@suse.de>
References: <Pine.LNX.4.44.0312041801560.26684-100000@gaia.cela.pl> <9405.1070562818@www45.gmx.net>
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On Thu, Dec 04 2003, Peter Bergmann wrote:
> > 
> > Yes, and as a side question, couldn't oom killer be made into a config 
> > option?
> > 
> > Cheers,
> > MaZe.
> 
> I just tried it and - no it does not work.  
> At least not with the following changes:
> 
> added #define PF_MEMDIE  0x00001000 to sched.h
> 
> replaced oom_kill.c with the 2.4.22 version
> 
> added out_of_memory() to the end of try_to_free_pages_zone()
> 
> replaced if (current->flags & PF_MEMALLOC && !in_interrupt()) {
> with
> replaced if ((current->flags & (PF_MEMALLOC | PF_MEMDIE)) && !in_interrupt()
> ) {
> in page_alloc.c
> 
> 
> effect is still unchanged. 
> processes get killed by VM and not oom_kikll.c
> 
> any hints ??

You probably want to look at the change to
vmscan.c:try_to_free_pages_zone().

-- 
Jens Axboe