From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753782AbZBRJVK (ORCPT ); Wed, 18 Feb 2009 04:21:10 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753063AbZBRJTw (ORCPT ); Wed, 18 Feb 2009 04:19:52 -0500 Received: from fg-out-1718.google.com ([72.14.220.157]:51672 "EHLO fg-out-1718.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752848AbZBRJTq (ORCPT ); Wed, 18 Feb 2009 04:19:46 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; b=hT0kO5NTpdA1gqFuTRaQsaVsYrUOl70eWf2N3ObwnN7lSsSdrwDvCbPBpLRuNNoTE9 oApms3tEa8/N/JeSa7p4zlHkmQoTFt/VNyrlEGrjTUDhPHJXGgQL6lT8pS+k0SngD7/r 26WjIlhsm+VupQc0PFQa7wzHm35uciqMvZ3Ns= Message-ID: <499BD2AE.2020205@gmail.com> Date: Wed, 18 Feb 2009 10:19:42 +0100 From: Jiri Slaby User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1b3pre) Gecko/20090208 SUSE/3.0b1-7.1 Thunderbird/3.0b2pre MIME-Version: 1.0 To: linux-kernel@vger.kernel.org CC: mm-commits@vger.kernel.org, akpm@linux-foundation.org, Ingo Molnar , "H. Peter Anvin" , tglx@linutronix.de, x86@kernel.org, oleg@redhat.com Subject: Re: mmotm 2009-02-17-12-33 uploaded References: <200902172050.n1HKorvc028933@imap1.linux-foundation.org> <499B465D.9080502@gmail.com> In-Reply-To: <499B465D.9080502@gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 18.2.2009 00:21, Jiri Slaby wrote: > On 17.2.2009 21:33, akpm@linux-foundation.org wrote: >> The mm-of-the-moment snapshot 2009-02-17-12-33 has been uploaded to This one: kthreads-move-sched-realeted-initialization-from-kthreadd-context.patch > Hi, > > I'm getting the page fault below everytime during bootup. This is how > __task_rq_lock looks like: > for (;;) { > struct rq *rq; > printk("CPU=%u %p %p %p %s\n", task_cpu(p), p, > task_thread_info(p)->task, > task_thread_info(p), p->comm); > rq = task_rq(p); > spin_lock(&rq->lock); > if (likely(rq == task_rq(p))) > return rq; > spin_unlock(&rq->lock); > } > > CPU=2303197184 ffff880012497d90 b8005f57df1d8948 ffffffff80262d0a > migration/0 > BUG: unable to handle kernel paging request at 00000003cabbb780 > IP: [] __sched_setscheduler+0x17b/0x4a0 > PGD 0 > Oops: 0000 [#1] SMP > last sysfs file: > CPU 0 > Modules linked in: > Pid: 1, comm: swapper Not tainted 2.6.29-rc5-mm1_64 #578 > RIP: 0010:[] [] > __sched_setscheduler+0x17b/0x4a0 > RSP: 0018:ffff880012497cc0 EFLAGS: 00000086 > RAX: 0000000089480000 RBX: ffffffff80262d0a RCX: 00000000ffffffff > RDX: 000000000000d7d7 RSI: 0000000000000046 RDI: ffffffff80835334 > RBP: ffff880012497d30 R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000010180 > R13: 0000000000000000 R14: ffff880012497d90 R15: 0000000000010180 > FS: 0000000000000000(0000) GS:ffff880001007000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b > CR2: 00000003cabbb780 CR3: 0000000000201000 CR4: 00000000000006e0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 0000000000000000 DR7: 0000000000000000 > Process swapper (pid: 1, threadinfo ffff880012496000, task > ffff880012478000) > Stack: > 0000000000000000 ffff880012497dc0 ffff880012498270 ffffffff12478000 > 0000000000000000 ffffffff80262d0a ffff8800124980f0 0000000000000046 > 0000000000000246 ffff880012497d50 ffffffff806f1065 0000000000000000 > Call Trace: > [] ? tick_check_broadcast_device+0x3a/0x70 > [] sched_setscheduler_nocheck+0xb/0x10 > [] kthread_create+0xe7/0x120 > [] ? migration_thread+0x0/0x230 > [] ? tick_check_broadcast_device+0x3a/0x70 > [] ? tick_notify+0x369/0x410 > [] ? migration_init+0x0/0x5c > [] migration_call+0x376/0x4ed > [] ? migration_init+0x0/0x5c > [] migration_init+0x26/0x5c > [] ? migration_init+0x0/0x5c > [] do_one_initcall+0x3c/0x170 > [] ? native_smp_prepare_cpus+0x1c0/0x311 > [] kernel_init+0x76/0x1bc > [] child_rip+0xa/0x20 > [] ? kernel_init+0x0/0x1bc > [] ? child_rip+0x0/0x20 > Code: 69 3a 00 49 8b 5e 08 4c 8b 45 08 48 8b 0b ba db 08 00 00 48 c7 c6 > e0 4a 6e 80 48 c7 c7 ce 99 6e 80 31 c0 e8 0b 69 3a 00 8b 43 18 <4c> 03 > 24 c5 80 b7 7b 80 4c 89 e7 e8 e5 97 3a 00 49 8b 5e 08 31 > RIP [] __sched_setscheduler+0x17b/0x4a0 > RSP > CR2: 00000003cabbb780 > ---[ end trace 4eaa2a86a8e2da22 ]---