Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933397Ab2FIBjF (ORCPT ); Fri, 8 Jun 2012 21:39:05 -0400 Received: from mx4-phx2.redhat.com ([209.132.183.25]:41972 "EHLO mx4-phx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932121Ab2FIBjD (ORCPT ); Fri, 8 Jun 2012 21:39:03 -0400 Date: Fri, 08 Jun 2012 21:38:53 -0400 (EDT) From: Zhouping Liu To: Peter Zijlstra Cc: Andrea Arcangeli , Linus Torvalds , Hillf Danton , hi3766691@gmail.com, LKML Subject: Re: Kernel panic - not syncing: Attempted to kill the idle task! Message-ID: In-Reply-To: <1339181217.30462.3.camel@twins> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit MIME-Version: 1.0 X-Originating-IP: [10.66.113.244] X-Mailer: Zimbra 7.1.2_GA_3268 (ZimbraWebClient - FF3.0 (Linux)/7.1.2_GA_3268) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2845 Lines: 76 ----- Original Message ----- > From: "Peter Zijlstra" > To: "ZhouPing Liu" > Cc: "Andrea Arcangeli" , "Linus Torvalds" , "Hillf Danton" > , hi3766691@gmail.com, "LKML" > Sent: Saturday, June 9, 2012 2:46:57 AM > Subject: Re: Kernel panic - not syncing: Attempted to kill the idle task! > > On Sat, 2012-06-09 at 01:13 +0800, ZhouPing Liu wrote: > > > kernel panic on mainline(commit: 48d212a2eecaca) with a large > > system, which > > has 120Gb RAM & 8 numa nodes: > > > > ... [cut here] ... > > [ 3.404017] Call Trace: > > [ 3.404553] [] find_busiest_group+0x39/0x4b0 > > [ 3.406188] [] load_balance+0x105/0xa50 > > [ 3.407444] [] ? trace_hardirqs_off+0xd/0x10 > > [ 3.408695] [] ? local_clock+0x6f/0x80 > > [ 3.409789] [] idle_balance+0x130/0x2d0 > > [ 3.410879] [] ? idle_balance+0x50/0x2d0 > > [ 3.411996] [] __schedule+0x910/0xa00 > > [ 3.413204] [] schedule+0x29/0x70 > > [ 3.414324] [] cpu_idle+0x12f/0x140 > > [ 3.415433] [] start_secondary+0x262/0x264 > > [ 3.416763] Code: 44 8b bd 7c ff ff ff 45 85 ff 0f 85 30 02 00 > > 00 48 > > 8b bd 48 ff ff ff 48 8b 4f 10 4c 8b 45 98 8b 71 04 31 d2 4c 89 c0 > > 48 c1 > > e0 0a <48> f7 f6 48 8b 75 a0 48 85 f6 48 89 c7 49 89 c1 48 89 45 90 > > 0f > > [ 3.420335] RIP [] > > update_sd_lb_stats+0x27b/0x620 > > [ 3.421664] RSP > > [ 3.422473] ---[ end trace 04b848dd1c06d585 ]--- > > [ 3.423472] Kernel panic - not syncing: Attempted to kill the > > idle task! > > > here I do a simple summary: > > > b), mainline, v3.5-rc1(commit: 48d212a2eecaca), yes > > d), tip/master(commit:b2f5ce55c4e68370) no such > > panic > > > > let me know if you need any info. > > There's a number of patches in tip/sched/urgent that I think fix this > (hence your D) and these should make their way to Linus shortly. > > That said, can you provide me your node distance table so I can > verify > locally? > > cat /sys/devices/system/node/node*/distance # cat /sys/devices/system/node/node*/distance 10 17 17 24 24 24 30 30 18 10 30 18 18 24 24 24 18 24 10 24 24 17 30 30 24 18 23 10 24 17 17 30 24 17 24 24 10 18 30 18 31 24 17 18 18 10 24 24 30 24 30 17 24 24 10 18 30 24 30 24 17 24 17 10 -- Thanks, Zhouping -- 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/