From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from root by main.gmane.org with local (Exim 3.35 #1 (Debian)) id 1BXJGm-0002S3-00 for ; Mon, 07 Jun 2004 14:30:28 +0200 Received: from 61.16.153.178 ([61.16.153.178]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 07 Jun 2004 14:30:28 +0200 Received: from linux by 61.16.153.178 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 07 Jun 2004 14:30:28 +0200 From: Nirendra Awasthi Subject: Re: Determining if process is having core dump Date: Mon, 07 Jun 2004 17:52:29 +0530 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit In-Reply-To: Sender: owner-linux-mm@kvack.org Return-Path: To: linux-mm@kvack.org List-ID: Another problem I noticed is, while sending SIBABRT (or any signal which causes core dump) to process already having core dump results in corrupting core. Following is the output while analyzing core with gdb: Reading symbols from /lib/tls/libc.so.6...done. Loaded symbols for /lib/tls/libc.so.6 Reading symbols from /lib/ld-linux.so.2...done. Loaded symbols for /lib/ld-linux.so.2 #0 0xffffe411 in ?? () -Nirendra Nirendra Awasthi wrote: > Hi, > Is there a way for a unrelated process to determine if another > process is exiting and is in the state of having core dump. > > In solaris, this can be determined using libkvm(checking process > flags for SDOCORE and COREDUMP). Is there a way to do this in linux 2.6 > > One of the things I observed is flag in /proc//stat (9th > attribute) is set to non-zero after process receives a signal to quit > after core dump (SIGABRT, SIGQUIT etc.). Is it an indication that > process is going to exit or what does it indicates. > > Is there some other way to determine this. I don't want to limit > size of core file to 0 using ulimit, as this file is required to be > analyzed later. > Also, while process is exiting and it receives another signal, it is > corrupting the core dump. > > -Nirendra > > -- > To unsubscribe, send a message with 'unsubscribe linux-mm' in > the body to majordomo@kvack.org. For more info on Linux MM, > see: http://www.linux-mm.org/ . > Don't email: aart@kvack.org > -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: aart@kvack.org