From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264717AbUHBKBZ (ORCPT ); Mon, 2 Aug 2004 06:01:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266425AbUHBKBY (ORCPT ); Mon, 2 Aug 2004 06:01:24 -0400 Received: from e34.co.us.ibm.com ([32.97.110.132]:2804 "EHLO e34.co.us.ibm.com") by vger.kernel.org with ESMTP id S264717AbUHBKBB (ORCPT ); Mon, 2 Aug 2004 06:01:01 -0400 Date: Mon, 2 Aug 2004 15:27:41 +0530 From: Dipankar Sarma To: V Srivatsa , Nathan Lynch Cc: Joel Schopp , Rusty Russell , linux-kernel@vger.kernel.org, Nick Piggin Subject: Re: CPU hotplug broken in 2.6.8-rc2 ? Message-ID: <20040802095741.GA4599@in.ibm.com> Reply-To: dipankar@in.ibm.com References: <20040802094907.GA3945@in.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040802094907.GA3945@in.ibm.com> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Copied to the right email ids to avoid bouncing emails on replies. Thanks Dipankar On Mon, Aug 02, 2004 at 03:19:07PM +0530, Dipankar Sarma wrote: > Could it be that recent sched domain stuff broke CPU hotplug ? > While testing cpu hotplug with some RCU changes, I got the following > panic (while onlining). > > Thanks > Dipankar > > cpu 0x2: Vector: 380 (Data SLB Access) at [c00000000152f4a0] > pc: c00000000004b1b0: .find_busiest_group+0x274/0x464 > lr: c00000000004b0e4: .find_busiest_group+0x1a8/0x464 > sp: c00000000152f720 > msr: 8000000000001032 > dar: 10 > current = 0xc000000001520040 > paca = 0xc000000000535200 > pid = 0, comm = swapper > enter ? for help > 2:mon> > > 2:mon> t > [c00000000152f720] c000000000654f30 (unreliable) > [c00000000152f830] c00000000004b4cc .rebalance_tick+0x12c/0x2d4 > [c00000000152f920] c00000000005b954 .update_process_times+0xc4/0x154 > [c00000000152f9c0] c0000000000385e8 .smp_local_timer_interrupt+0x3c/0x58 > [c00000000152fa30] c000000000015088 .timer_interrupt+0x11c/0x3fc > [c00000000152fb10] c00000000000a2b4 Decrementer_common+0xb4/0x100 > --- Exception: 901 (Decrementer) at c000000000013bc0 .default_idle+0x70/0x110 > [c00000000152fe90] c0000000000139e4 .cpu_idle+0x38/0x50 > [c00000000152ff00] c000000000038e18 .start_secondary+0xfc/0x150 > [c00000000152ff90] c00000000000bf20 .enable_64b_mode+0x0/0x28 > > 2:mon> r > R00 = 000000000000002b R16 = 0000000000000040 > R01 = c00000000152f720 R17 = 0000000000000180 > R02 = c0000000006d6d40 R18 = 0000000000000040 > R03 = 0000000000000020 R19 = c000000000828e08 > R04 = 0000000000000020 R20 = 0000000000000002 > R05 = 0000000000000002 R21 = 0000000000000000 > R06 = c00000000073f9b0 R22 = 0000000000000000 > R07 = 000000000000000b R23 = c00000000152f790 > R08 = c0000000006fc728 R24 = c0000000006d5008 > R09 = 0000000000000015 R25 = c000000000529c38 > R10 = 0000000000000000 R26 = c000000000529c38 > R11 = 0000000000000080 R27 = c00000000073f9b0 > R12 = 0000000028282482 R28 = 0000000000000001 > R13 = c000000000535200 R29 = 0000000000000015 > R14 = c00000000073f980 R30 = c0000000005bbe00 > R15 = 0000000000000000 R31 = c00000000152f720 > pc = c00000000004b1b0 .find_busiest_group+0x274/0x464 > lr = c00000000004b0e4 .find_busiest_group+0x1a8/0x464 > msr = 8000000000001032 cr = 28282488 > ctr = c000000000013b50 xer = 0000000000000000 trap = 380 > > - > 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/ > >