Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753240Ab0DUIm4 (ORCPT ); Wed, 21 Apr 2010 04:42:56 -0400 Received: from mail.agmk.net ([91.192.224.71]:42456 "EHLO mail.agmk.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753074Ab0DUImy convert rfc822-to-8bit (ORCPT ); Wed, 21 Apr 2010 04:42:54 -0400 Content-Type: text/plain; charset=utf-8; format=flowed; delsp=yes To: "Yann Droneaud" Cc: libc-help@sourceware.org, "Mike Frysinger" , linux-kernel@vger.kernel.org Subject: Re: mprotect() failed: Cannot allocate memory References: <201004210105.20942.pluto@agmk.net> <201004201917.23286.vapier@gentoo.org> <201004210144.18954.pluto@agmk.net> <1271838139.28592.10.camel@localhost> Date: Wed, 21 Apr 2010 10:42:45 +0300 MIME-Version: 1.0 Content-Transfer-Encoding: 8BIT From: =?utf-8?B?UGF3ZcWCIFNpa29yYQ==?= Message-ID: In-Reply-To: <1271838139.28592.10.camel@localhost> User-Agent: Opera Mail/10.51 (Win32) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 924 Lines: 27 Dnia 21-04-2010 o 11:22:19 Yann Droneaud napisał(a): >> (...) >> mmap(NULL, 4896, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_ANONYMOUS, -1, 0) >> = >> 0x7f5fd97df000 >> mprotect(0x7f5fd97df000, 4096, PROT_NONE) = -1 ENOMEM (Cannot allocate >> memory) > > Have you checked available memory on your system ? Or user limit ? > > You test program is going to allocate > 79 + 1 pages for bm > 1 + 1 for each double arrays (x 40000) > > So in the end your program is allocating 80080 pages, so about > 312MBytes. > > It not that big for a 64bits system. afaics in gdb, the mprotect fails at i=32756. it's near to 2^15. maybe some kernel data structures are full? -- 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/