Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762285AbYHEMmQ (ORCPT ); Tue, 5 Aug 2008 08:42:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1762604AbYHEMln (ORCPT ); Tue, 5 Aug 2008 08:41:43 -0400 Received: from ogre.sisk.pl ([217.79.144.158]:51271 "EHLO ogre.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761501AbYHEMlj (ORCPT ); Tue, 5 Aug 2008 08:41:39 -0400 From: "Rafael J. Wysocki" To: Paul Rolland Subject: Re: [2.6.27-rc1] Oops in sched_power_savings_store Date: Tue, 5 Aug 2008 14:44:16 +0200 User-Agent: KMail/1.9.6 (enterprise 20070904.708012) Cc: linux-kernel@vger.kernel.org, rol@witbe.net References: <20080805115447.5e9d77f0@tux.DEF.witbe.net> In-Reply-To: <20080805115447.5e9d77f0@tux.DEF.witbe.net> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200808051444.19135.rjw@sisk.pl> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3775 Lines: 70 On Tuesday, 5 of August 2008, Paul Rolland wrote: > Hello, > > I've booted a 2.6.27-rc1 this morning, and I got the following Oops. Previously, > this machine was running an FC8 -2.6.25.9-40 kernel, without problem. > > Attached is the config used. The machine is a Dell Inspiron 6400. This problem should be fixed in the current mainline, by commit f718cd4add5aea9d379faff92f162571e356cc5f ("sched: make scheduler sysfs attributes sysdev class devices"). http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f718cd4add5aea9d379faff92f162571e356cc5f > BUG: unable to handle kernel NULL pointer dereference at 0000000000000002 > IP: [] sched_power_savings_store+0x13/0x55 > PGD 6811c067 PUD 5842c067 PMD 0 > Oops: 0000 [1] SMP > CPU 0 > Modules linked in: i915 drm autofs4 coretemp hwmon fuse nf_conntrack_ipv4 ipt_RE > JECT iptable_filter ip_tables nf_conntrack_ipv6 xt_state nf_conntrack xt_tcpudp > ip6t_ipv6header ip6t_REJECT ip6table_filter ip6_tables x_tables cpufreq_ondemand > acpi_cpufreq freq_table dm_mirror dm_log dm_multipath dm_mod ipv6 snd_hda_intel > snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq arc4 snd_seq_device ecb sn > d_pcm_oss hso snd_mixer_oss snd_pcm crypto_blkcipher iwl3945 snd_timer snd_page_ > alloc mac80211 rfkill snd_hwdep iTCO_wdt sr_mod i2c_i801 b44 i2c_core firewire_o > hci video button ssb usb_storage iTCO_vendor_support firewire_core crc_itu_t wmi > snd cfg80211 mii output battery ac cdrom sg joydev dcdbas soundcore ata_generic > ata_piix pata_acpi libata sd_mod scsi_mod ext3 jbd mbcache uhci_hcd ohci_hcd eh > ci_hcd [last unloaded: pcspkr] > Pid: 3179, comm: sched-powersave Not tainted 2.6.27-rc1 #1 > RIP: 0010:[] [] sched_power_savings_store+0 > x13/0x55 > RSP: 0018:ffff880058473e88 EFLAGS: 00010296 > RAX: fffffffffffffffb RBX: 0000000000000002 RCX: 0000000000000002 > RDX: 0000000000000000 RSI: ffffffffffffffea RDI: 0000000000000002 > RBP: ffff880058473e98 R08: ffffffff8102ee71 R09: ffff88006814e000 > R10: 0000000000000000 R11: 0000000000000001 R12: ffff880065093a80 > R13: ffff88007f321730 R14: 00000000ffffffed R15: ffffffff81402a28 > FS: 00007f4cddfe66f0(0000) GS:ffffffff81433a00(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > CR2: 0000000000000002 CR3: 0000000058421000 CR4: 00000000000006e0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > Process sched-powersave (pid: 3179, threadinfo ffff880058472000, task ffff880058 > 449640) > Stack: ffff88005a6a7540 ffffffff814023f0 ffff880058473ea8 ffffffff8102ee82 > ffff880058473eb8 ffffffff811aeabf ffff880058473f08 ffffffff810edd56 > ffff880058473f48 ffff880065093aa0 ffffffff814023f0 ffff88005a6a7540 > Call Trace: > [] sched_mc_power_savings_store+0x11/0x13 > [] sysdev_class_store+0x24/0x26 > [] sysfs_write_file+0xe0/0x11c > [] vfs_write+0xae/0x157 > [] sys_write+0x47/0x6f > [] system_call_fastpath+0x16/0x1b > > > Code: c3 55 48 89 e5 e8 bf 7b 00 00 e8 f8 53 03 00 e8 01 7c 00 00 c9 31 c0 c3 55 > 48 89 e5 53 48 89 f3 48 c7 c6 ea ff ff ff 48 83 ec 08 <8a> 0f 8d 41 d0 3c 01 77 > 31 85 d2 74 10 31 c0 80 f9 31 0f 94 c0 > RIP [] sched_power_savings_store+0x13/0x55 > RSP > CR2: 0000000000000002 > ---[ end trace 31382a2ba39cd029 ]--- -- 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/