Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932571Ab0FBRy4 (ORCPT ); Wed, 2 Jun 2010 13:54:56 -0400 Received: from mx1.redhat.com ([209.132.183.28]:13851 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932449Ab0FBRyz (ORCPT ); Wed, 2 Jun 2010 13:54:55 -0400 Date: Wed, 2 Jun 2010 19:53:25 +0200 From: Oleg Nesterov To: Roland McGrath Cc: KOSAKI Motohiro , LKML , linux-mm , David Rientjes , Andrew Morton , KAMEZAWA Hiroyuki , Nick Piggin Subject: Re: [PATCH] oom: Make coredump interruptible Message-ID: <20100602175325.GA16474@redhat.com> References: <20100601093951.2430.A69D9226@jp.fujitsu.com> <20100601201843.GA20732@redhat.com> <20100602221805.F524.A69D9226@jp.fujitsu.com> <20100602154210.GA9622@redhat.com> <20100602172956.5A3E34A491@magilla.sf.frob.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100602172956.5A3E34A491@magilla.sf.frob.com> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 697 Lines: 21 On 06/02, Roland McGrath wrote: > > Why not just test TIF_MEMDIE? Because it is per-thread. when select_bad_process() finds the task P to kill it can participate in the core dump (sleep in exit_mm), but we should somehow inform the thread which actually dumps the core: P->mm->core_state->dumper. Well, we can use TIF_MEMDIE if we chose the right thread, I think. But perhaps mm->flags |= MMF_OOM is better, it can have other user. I dunno. Oleg. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/