Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754066AbYKQRh5 (ORCPT ); Mon, 17 Nov 2008 12:37:57 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752185AbYKQRht (ORCPT ); Mon, 17 Nov 2008 12:37:49 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:60783 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751461AbYKQRht (ORCPT ); Mon, 17 Nov 2008 12:37:49 -0500 Date: Mon, 17 Nov 2008 18:37:28 +0100 From: Ingo Molnar To: Yinghai Lu Cc: Thomas Gleixner , "H. Peter Anvin" , Andrew Morton , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH] x86: fix wakeup_cpu with numaq/es7000 v2 Message-ID: <20081117173728.GA7384@elte.hu> References: <491FDE2A.1010809@kernel.org> <49200031.2040701@kernel.org> <20081117165224.GH12081@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20081117165224.GH12081@elte.hu> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00,DNS_FROM_SECURITYSAGE autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] 0.0 DNS_FROM_SECURITYSAGE RBL: Envelope sender in blackholes.securitysage.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3281 Lines: 54 hm, one of my testboxes is rather unhappy about your patch: [ 54.718062] SMP alternatives: switching to SMP code [ 55.083610] Booting processor 1 APIC 0x1 ip 0x6000 [ 55.088329] BUG: unable to handle kernel paging request at ffffffff817b0880 [ 55.092304] IP: [] native_cpu_up+0x410/0xf30 [ 55.092304] PGD 203067 PUD 207063 PMD 3d7dc163 PTE 17b0162 [ 55.092304] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC [ 55.092304] last sysfs file: /sys/devices/system/cpu/cpu1/online [ 55.092304] CPU 0 [ 55.092304] Pid: 7165, comm: S99local Not tainted 2.6.28-rc5-tip #53217 [ 55.092304] RIP: 0010:[] [] native_cpu_up+0x410/0xf30 [ 55.092304] RSP: 0018:ffff8800398bfcd8 EFLAGS: 00010296 [ 55.092304] RAX: 0000000000000000 RBX: ffffffff81820068 RCX: 0000000000000000 [ 55.092304] RDX: 000000000000f3f2 RSI: 0000000000000000 RDI: 0000000000000280 [ 55.092304] RBP: ffff8800398bfe18 R08: 0000000000000002 R09: 0000000000000000 [ 55.092304] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000006000 [ 55.092304] R13: 0000000000000001 R14: ffffffff80f5de20 R15: 0000000000000001 [ 55.092304] FS: 00007fd7562d76f0(0000) GS:ffffffff81726500(0000) knlGS:00000000f7f116c0 [ 55.092304] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 55.092304] CR2: ffffffff817b0880 CR3: 000000003ce2e000 CR4: 00000000000006a0 [ 55.092304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.092304] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 55.092304] Process S99local (pid: 7165, threadinfo ffff8800398be000, task ffff88003cf08000) [ 55.092304] Stack: [ 55.092304] ffff8800398bfd28 ffff8800025fb908 ffff88003d7d5910 0000000000000000 [ 55.092304] ffffffffdead4ead ffffffffffffffff ffffffff81c19fe8 0000000000000000 [ 55.092304] ffffffff8135f488 0000000000000000 ffff8800398bfe18 0000000000000008 [ 55.092304] Call Trace: [ 55.092304] [] ? do_fork_idle+0x0/0x40 [ 55.092304] [] _cpu_up+0x9f/0x130 [ 55.092304] [] cpu_up+0x59/0x90 [ 55.092304] [] store_online+0x68/0xa0 [ 55.092304] [] sysdev_store+0x20/0x30 [ 55.092304] [] sysfs_write_file+0xf5/0x150 [ 55.092304] [] vfs_write+0xcc/0x170 [ 55.092304] [] sys_write+0x55/0x90 [ 55.092304] [] system_call_fastpath+0x16/0x1b [ 55.092304] Code: 05 f1 ec 3c 01 40 0f 85 3f 08 00 00 48 8b 05 98 99 7c 00 bf 80 02 00 00 31 f6 ff 50 08 48 8b 05 87 99 7c 00 bf 80 02 00 00 ff 10 <48> 8b 05 59 3a 85 00 48 8b 40 70 48 85 c0 0f 84 62 03 00 00 4c [ 55.092304] RIP [] native_cpu_up+0x410/0xf30 [ 55.092304] RSP [ 55.092304] CR2: ffffffff817b0880 [ 55.092304] ---[ end trace 627abebe98896ded ]--- Config attached. Please send delta fix against the patch in tip/x86/quirks. (i've excluded the branch from tip/master for now) Ingo -- 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/