Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 7 Dec 2001 10:36:50 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 7 Dec 2001 10:36:40 -0500 Received: from mail.direcpc.com ([198.77.116.30]:5341 "EHLO postoffice2.direcpc.com") by vger.kernel.org with ESMTP id ; Fri, 7 Dec 2001 10:36:24 -0500 Subject: Re: kernel: ldt allocation failed From: "Jeffrey H. Ingber" To: Kiril Vidimce Cc: linux-kernel@vger.kernel.org In-Reply-To: In-Reply-To: Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Mailer: Evolution/1.0 (Preview Release) Date: 07 Dec 2001 00:58:33 -0500 Message-Id: <1007704718.10108.0.camel@eleusis> Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org This problem is very familiar. It was fixed in an -ac patch against 2.4.9 (although I don't recall the exact one), and is included in subsequent Linus kernels. Without this fix, I experienced similar problems with X on multiprocessor workstations. Jeffrey H. Ingber (jhingber _at_ ix.netcom.com) On Fri, 2001-12-07 at 00:40, Kiril Vidimce wrote: > > We suddenly started seeing freezing problems on a number of machines > in the past couple of days. There is no pattern as far as I can tell. > It has happened while running OpenGL apps, netscape, or even when not > doing anything. The machine will usually just hang and while it's > still pingable, it's totally unresponsive and you can't remotely log in. > The 2.4.3 kernel usually hangs forever; the machines with 2.4.9 > kernels usually come back within 10-15 secs. > > Every time this happens we see the following message in the system log: > > Dec 6 21:29:00 stranger kernel: ldt allocation failed > > The machines are: > > Hardware: > - IBM Intellistation M Pro > - dual 2 GHz P4's > - 2 GB RAM > - NVIDIA Quadro DCC card > > Software: > - Red Hat 7.1 > - kernel 2.4.3smp or 2.4.9smp > - XFree 4.1 > - Ximian Gnome 1.4 > - NVIDIA drivers 1.0-1541 > > Once this problem occurs, even if the hang is temporary, the machine > is extremely flakey. Almost any app will start causing ldt allocation > failure messages in the system log. Only a reboot really helps. > > Questions: > - Does this ring a bell to anybody? What is ldt anyway and what would > cause an allocation to fail? > > - I still keep one of these messages in this state. Is there anything > I can probe to get useful debugging info? > > Any help would greatly be appreciated. > > Thanks, > KV > -- > ___________________________________________________________________ > Studio Tools vkire@pixar.com > Pixar Animation Studios http://www.pixar.com/ > > - > 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/ - 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/