Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932082AbWLNIzu (ORCPT ); Thu, 14 Dec 2006 03:55:50 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932086AbWLNIzu (ORCPT ); Thu, 14 Dec 2006 03:55:50 -0500 Received: from jdi.jdi-ict.nl ([82.94.239.5]:60619 "EHLO jdi.jdi-ict.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932082AbWLNIzt (ORCPT ); Thu, 14 Dec 2006 03:55:49 -0500 Date: Thu, 14 Dec 2006 09:55:38 +0100 (CET) From: Igmar Palsenberg X-X-Sender: igmar@jdi.jdi-ict.nl To: Andrew Morton cc: linux-kernel@vger.kernel.org, npiggin@suse.de, erich Subject: Re: 2.6.16.32 stuck in generic_file_aio_write() In-Reply-To: <20061214004213.13149a48.akpm@osdl.org> Message-ID: References: <20061130212248.1b49bd32.akpm@osdl.org> <20061206074008.2f308b2b.akpm@osdl.org> <20061214004213.13149a48.akpm@osdl.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.1.12 (jdi.jdi-ict.nl [127.0.0.1]); Thu, 14 Dec 2006 09:55:38 +0100 (CET) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1542 Lines: 42 > > Hmm.. Switching CONFIG_HZ from 1000 to 250 seems to 'fix' the problem. > > I haven't seen the issue in nearly a week now. This makes Andrew's theory > > about missing interrupts very likely. > > > > Andrew / others : Is there a way to find out if it *is* missing > > interrupts ? > > > > umm, nasty. What's in /proc/interrupts? See below. The other machine is mostly identifical, except for i8042 missing (probably due to running an older kernel, or small differences in the kernel config). Regards, Igmar [jdiict@lnx01 ~]$ cat /proc/interrupts CPU0 CPU1 0: 73702693 74509271 IO-APIC-edge timer 1: 1 1 IO-APIC-edge i8042 4: 2289 8389 IO-APIC-edge serial 8: 0 1 IO-APIC-edge rtc 9: 0 0 IO-APIC-fasteoi acpi 12: 3 1 IO-APIC-edge i8042 16: 203127788 0 IO-APIC-fasteoi uhci_hcd:usb2, eth0 17: 525 492 IO-APIC-fasteoi uhci_hcd:usb4 18: 13000070 67584889 IO-APIC-fasteoi arcmsr 19: 0 0 IO-APIC-fasteoi ehci_hcd:usb1 20: 0 0 IO-APIC-fasteoi uhci_hcd:usb3 NMI: 0 0 LOC: 148127756 148133476 ERR: 0 MIS: 0 - 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/