Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755741Ab1FJNRu (ORCPT ); Fri, 10 Jun 2011 09:17:50 -0400 Received: from e1.ny.us.ibm.com ([32.97.182.141]:38345 "EHLO e1.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755392Ab1FJNRt (ORCPT ); Fri, 10 Jun 2011 09:17:49 -0400 Subject: BUG on 3.0-rc on commit d72bce0e67e8afc6eb959f656013cbb577426f1e From: Andrew Theurer Reply-To: habanero@linux.vnet.ibm.com To: linux-kernel@vger.kernel.org Cc: peterz@infradead.org Content-Type: text/plain; charset="UTF-8" Date: Fri, 10 Jun 2011 08:17:17 -0500 Message-ID: <1307711837.23688.33.camel@atheurer-ubuntu10> Mime-Version: 1.0 X-Mailer: Evolution 2.30.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4318 Lines: 102 Looks like commit d72bce0e67e8afc6eb959f656013cbb577426f1e breaks my boot: BUG: unable to handle kernel NULL pointer dereference at 0000000000000004 IP: [] find_lowest_rq+0xa1/0x150 PGD 0 Oops: 0000 [#1] SMP CPU 0 Modules linked in: Pid: 1, comm: swapper Not tainted 3.0.0-rc1-00001-gd72bce0 #32 IBM -[7145AC1]-/Node 1, Processor Card RIP: 0010:[] [] find_lowest_rq +0xa1/0x150 RSP: 0018:ffff883732925ca0 EFLAGS: 00010002 RAX: 0000000000000020 RBX: 0000000000000020 RCX: 0000000000000050 RDX: 00000000ffffffff RSI: 0000000000000050 RDI: 0000000000000050 RBP: ffff883732925cd0 R08: ffff883732774d38 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000012ac0 FS: 0000000000000000(0000) GS:ffff88387f800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000004 CR3: 0000000001a03000 CR4: 00000000000006f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process swapper (pid: 1, threadinfo ffff883732924000, task ffff8837329234c0) Stack: ffff883732925cf0 0000000000000020 0000000000000020 ffff883732775300 0000000000000000 0000000000000286 ffff883732925cf0 ffffffff8104e9da 0000000000000022 ffff883732774b40 ffff883732925d40 ffffffff8105ae11 Call Trace: [] select_task_rq_rt+0x7a/0x90 [] try_to_wake_up+0x111/0x280 [] wake_up_process+0x15/0x20 [] rcu_cpu_notify+0xd6/0x196 [] notifier_call_chain+0x55/0x80 [] __raw_notifier_call_chain+0xe/0x10 [] __cpu_notify+0x20/0x40 [] _cpu_up+0xc7/0x10e [] cpu_up+0xd7/0xea [] smp_init+0x41/0x96 [] kernel_init+0x1d6/0x262 [] kernel_thread_helper+0x4/0x10 [] ? do_basic_setup+0x5c/0x5c [] ? gs_change+0x13/0x13 Code: 2a 01 00 48 89 fe 48 8b 04 c5 40 a3 bf 81 4c 89 e2 49 8b 84 07 88 08 00 00 48 83 c0 38 48 89 c7 e8 b5 74 0a 00 85 c0 74 ae 89 d8 0f a3 1c 24 19 d2 85 d2 75 a6 45 0f a3 2c 24 19 c0 41 be ff RIP [] find_lowest_rq+0xa1/0x150 RSP CR2: 0000000000000004 ---[ end trace 6afdf060c90559fd ]--- Kernel panic - not syncing: Attempted to kill init! Pid: 1, comm: swapper Tainted: G D 3.0.0-rc1-00001-gd72bce0 #32 Call Trace: [] panic+0x91/0x1a8 [] forget_original_parent+0x32b/0x330 [] exit_notify+0x1b/0x190 [] do_exit+0x1fd/0x430 [] oops_end+0xab/0xf0 [] no_context+0xfc/0x190 [] __bad_area_nosemaphore+0x125/0x1e0 [] ? put_dec+0x59/0x60 [] bad_area_nosemaphore+0x13/0x20 [] do_page_fault+0x328/0x470 [] ? notify_update+0x2e/0x30 [] ? vt_console_print+0x2a8/0x390 [] ? __perf_event_task_sched_out+0x31/0x50 [] ? perf_event_task_sched_out+0x33/0xa0 [] page_fault+0x25/0x30 [] ? find_lowest_rq+0xa1/0x150 [] select_task_rq_rt+0x7a/0x90 [] try_to_wake_up+0x111/0x280 [] wake_up_process+0x15/0x20 [] rcu_cpu_notify+0xd6/0x196 [] notifier_call_chain+0x55/0x80 [] __raw_notifier_call_chain+0xe/0x10 [] __cpu_notify+0x20/0x40 [] _cpu_up+0xc7/0x10e [] cpu_up+0xd7/0xea [] smp_init+0x41/0x96 [] kernel_init+0x1d6/0x262 [] kernel_thread_helper+0x4/0x10 [] ? do_basic_setup+0x5c/0x5c [] ? gs_change+0x13/0x13 This is on a Westmere-EX (4 socket, 40 cores) -Andrew -- 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/