From owner-freebsd-hackers Mon Nov 18 21: 9:19 2002 Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 61FD437B401 for ; Mon, 18 Nov 2002 21:09:18 -0800 (PST) Received: from 002.216-123-229-0.interbaun.com (002.216-123-229-0.interbaun.com [216.123.229.2]) by mx1.FreeBSD.org (Postfix) with ESMTP id C943943E88 for ; Mon, 18 Nov 2002 21:09:15 -0800 (PST) (envelope-from soralx@cydem.zp.ua) Received: from 254.216-123-229-0.interbaun.com (vasya [192.168.0.3]) by 002.216-123-229-0.interbaun.com (8.11.6/8.11.6) with ESMTP id gAJ59C618573 for ; Mon, 18 Nov 2002 22:09:13 -0700 (MST) (envelope-from soralx@cydem.zp.ua) Content-Type: text/plain; charset="koi8-r" From: To: freebsd-hackers@FreeBSD.ORG Subject: Re: Memory corruption in -STABLE on P4/2GHz Date: Mon, 18 Nov 2002 22:09:04 -0700 X-Mailer: KMail [version 1.4] References: <20021117211654.GE6115@vega.vega.com> In-Reply-To: <20021117211654.GE6115@vega.vega.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Message-Id: <200211182209.04459.soralx@cydem.zp.ua> Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG > SoboMax > I'm observing very strange memory corruption problems with 2GHz P4 > system running 4.7 (security branch as of today). Under the load > (make -j20 buildworld) the compiler or make(1) often die with signal > 11. I found in mailing lists that there is similarly looking problem > with -current, any chances that -stable is affected as well? What CPU core you have? I tested my system several times and found no problems: FreeBSD 4.6.2-RELEASE NO 'options DISABLE_PSE' CPU: Intel P4 2.0A Ghz, NW core, overclocked to 2.5Ghz MBoard: Gigabyte GA-8IHXP, i850E chipset RAM: 512Mb RDRAM 800Mhz Run /usr/ports/sysutils/cpuburn, `burnP6` for a night. If it doesn't coredump, run memtest86 for another night. This is how I tested my overclocked system. With FSB frequency more than 125Mhz (+25Mhz), `burnP6` dies with sig?? after some time, and 'memtest86' reports errors. The same result is when I increase the frequency and don't increase Vcc (CPU core voltage). Seems like the CPU doesn't get enough power (check the 12V 4-pin power connector and the power supply) or the memory is no-brand/overclocked. >Robert Withrow >I had similar problems. Terry Lambert reports that there is a bug >in the P4. not likely. why? 18.11.2002; 21:42:59 [SorAlx] http://cydem.zp.ua/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message