From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.91] helo=mail.sourceforge.net) by sc8-sf-list1-new.sourceforge.net with esmtp (Exim 4.43) id 1HOeaj-0007JK-Un for user-mode-linux-devel@lists.sourceforge.net; Tue, 06 Mar 2007 10:40:54 -0800 Received: from saraswathi.solana.com ([198.99.130.12]) by mail.sourceforge.net with esmtp (Exim 4.44) id 1HOeag-0006oi-8s for user-mode-linux-devel@lists.sourceforge.net; Tue, 06 Mar 2007 10:40:50 -0800 Message-Id: <200703061832.l26IW6Ua006554@ccure.user-mode-linux.org> Mime-Version: 1.0 Date: Tue, 06 Mar 2007 13:32:06 -0500 From: Jeff Dike Subject: [uml-devel] [PATCH 2/5] UML - print coredump limits List-Id: The user-mode Linux development list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: user-mode-linux-devel-bounces@lists.sourceforge.net Errors-To: user-mode-linux-devel-bounces@lists.sourceforge.net To: akpm@osdl.org Cc: linux-kernel@vger.kernel.org, user-mode-linux-devel@lists.sourceforge.net Print out core dump limits at boot time. This is to allow core dumps to be collected if something goes very wrong and to tell if a core dump isn't going to happen because of a resource limit. Signed-off-by: Jeff Dike -- arch/um/os-Linux/start_up.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) Index: test/arch/um/os-Linux/start_up.c =================================================================== --- test.orig/arch/um/os-Linux/start_up.c 2007-03-06 10:21:43.000000000 -0500 +++ test/arch/um/os-Linux/start_up.c 2007-03-06 10:43:02.000000000 -0500 @@ -17,6 +17,7 @@ #include #include #include +#include #include #include #include @@ -329,8 +330,32 @@ static void __init check_ptrace(void) extern void check_tmpexec(void); +static void check_coredump_limit(void) +{ + struct rlimit lim; + int err = getrlimit(RLIMIT_CORE, &lim); + + if(err){ + perror("Getting core dump limit"); + return; + } + + printf("Core dump limits :\n\tsoft - "); + if(lim.rlim_cur == RLIM_INFINITY) + printf("NONE\n"); + else printf("%lu\n", lim.rlim_cur); + + printf("\thard - "); + if(lim.rlim_max == RLIM_INFINITY) + printf("NONE\n"); + else printf("%lu\n", lim.rlim_max); +} + void os_early_checks(void) { + /* Print out the core dump limits early */ + check_coredump_limit(); + check_ptrace(); /* Need to check this early because mmapping happens before the ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel