From mboxrd@z Thu Jan 1 00:00:00 1970 From: leroy christophe Subject: Oops during Init IRQ Date: Mon, 18 Jun 2012 15:53:33 +0200 Message-ID: <4FDF32DD.3010800@c-s.fr> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit To: linux-rt-users@vger.kernel.org Return-path: Received: from pegase1.c-s.fr ([93.17.236.30]:12970 "EHLO mailhub1.si.c-s.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751178Ab2FROag (ORCPT ); Mon, 18 Jun 2012 10:30:36 -0400 Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id E9B2C1C8347 for ; Mon, 18 Jun 2012 14:53:32 +0200 (CEST) Received: from mailhub1.si.c-s.fr ([192.168.12.234]) by localhost (mailhub1.c-s.fr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id bIWXJ5dwPrZE for ; Mon, 18 Jun 2012 14:53:32 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id CA66A1C8346 for ; Mon, 18 Jun 2012 14:53:32 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 17ED4C73C8 for ; Mon, 18 Jun 2012 15:53:34 +0200 (CEST) Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id whvZKfub2hGo for ; Mon, 18 Jun 2012 15:53:34 +0200 (CEST) Received: from [127.0.0.1] (unknown [172.25.231.6]) by messagerie.si.c-s.fr (Postfix) with ESMTP id DC8C4C73C5 for ; Mon, 18 Jun 2012 15:53:33 +0200 (CEST) Sender: linux-rt-users-owner@vger.kernel.org List-ID: Hello, I'm trying to use the rt10 patch on a 3.4.2 kernel on a powerpc (MPC8xx) system, and I'm having the following Oops during Irq initialisation. This happens with CONFIG_PREEMPT_RT_FULL. It doesn't happen with CONFIG_PREEMPT__LL May someone help ? [ 0.000000] Memory: 125676k/131072k available (3680k kernel code, 5396k reserved, 160k data, 193k bss, 140k init) [ 0.000000] Kernel virtual memory layout: [ 0.000000] * 0xfffdf000..0xfffff000 : fixmap [ 0.000000] * 0xfde00000..0xfe000000 : consistent mem [ 0.000000] * 0xfddf6000..0xfde00000 : early ioremap [ 0.000000] * 0xc9000000..0xfddf6000 : vmalloc & ioremap [ 0.000000] NR_IRQS:512 nr_irqs:512 16 [ 0.000000] Unable to handle kernel paging request for data at address 0x00000418 [ 0.000000] Faulting instruction address: 0xc0163398 [ 0.000000] Oops: Kernel access of bad area, sig: 11 [#1] [ 0.000000] PREEMPT CMPC885 [ 0.000000] Modules linked in: [ 0.000000] NIP: c0163398 LR: c02ae398 CTR: 00000000 [ 0.000000] REGS: c03b3d60 TRAP: 0300 Not tainted (3.4.2-rt10-s3k-3.7.4+-svn2547) [ 0.000000] MSR: 00001032 CR: 22444482 XER: 20005208 [ 0.000000] DAR: 00000418, DSISR: c0000000 [ 0.000000] TASK = c039a3e8[0] 'swapper' THREAD: c03b2000 [ 0.000000] GPR00: c02ae398 c03b3e10 c039a3e8 00000414 0000000f 00000000 c032f744 00000011 [ 0.000000] GPR08: c039a3e8 c03b2000 00000000 00000001 22444482 10029aec 00000000 07ff9550 [ 0.000000] GPR16: 00000000 07bb6de8 00000000 07ff825c 07ff825c 07ff825c 00000000 00000000 [ 0.000000] GPR24: 07ffb3a0 ffffffed 00000001 00000000 c039d6d4 0000000f 00000414 00000414 [ 0.000000] NIP [c0163398] do_raw_spin_lock+0x34/0x174 [ 0.000000] LR [c02ae398] _raw_spin_lock_irqsave+0x30/0x48 [ 0.000000] Call Trace: [ 0.000000] [c03b3e10] [07fe7f50] 0x7fe7f50 (unreliable) [ 0.000000] [c03b3e40] [c02ae398] _raw_spin_lock_irqsave+0x30/0x48 [ 0.000000] [c03b3e50] [c0043050] try_to_wake_up+0x38/0x1a0 [ 0.000000] [c03b3e70] [c0036c58] kthread_create_on_node+0x9c/0x124 [ 0.000000] [c03b3f00] [c005c780] __setup_irq+0x2ac/0x464 [ 0.000000] [c03b3f30] [c005cdec] setup_irq+0x64/0xb8 [ 0.000000] [c03b3f50] [c0013e80] cpm_pic_init+0x14c/0x1f0 [ 0.000000] [c03b3f90] [c03798f0] mpc8xx_pics_init+0x2c/0x58 [ 0.000000] [c03b3fa0] [c0379cd4] cmpc885_pics_init+0x14/0xcc [ 0.000000] [c03b3fb0] [c0377478] init_IRQ+0x24/0x34 [ 0.000000] [c03b3fc0] [c0375830] start_kernel+0x1cc/0x300 [ 0.000000] [c03b3ff0] [c0002218] start_here+0x38/0x9c [ 0.000000] Instruction dump: [ 0.000000] 9421ffd0 7d800026 93e1002c 90010034 93210014 93410018 9361001c 93810020 [ 0.000000] 93a10024 93c10028 91810010 7c7f1b78 <81230004> 6d20dead 2f804ead 409e0074 Best regards C. Leroy