Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752453AbYLXARQ (ORCPT ); Tue, 23 Dec 2008 19:17:16 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751280AbYLXARA (ORCPT ); Tue, 23 Dec 2008 19:17:00 -0500 Received: from mail-bw0-f21.google.com ([209.85.218.21]:54628 "EHLO mail-bw0-f21.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751241AbYLXAQ6 (ORCPT ); Tue, 23 Dec 2008 19:16:58 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:mime-version:content-type :content-transfer-encoding:content-disposition; b=diYyHvj6+MEwXEfpR7LwzGkaRgaqv6KeBgjXiPJd4EgVU6nOl1N8RHtd66wJ0Iu5CX 7ZCAaaeS/7KjxsGZZSgt6TPYM9Q2dVRZ+cALD5QV1qldBvrtJXtXkzFUB4mGuLdV6xDa ER2nBBkUpgtXGEVH9+l6sEVgW21xtavf2n1C4= Message-ID: Date: Wed, 24 Dec 2008 01:16:56 +0100 From: "Zdenek Kabelac" To: "Linux Kernel Mailing List" Subject: BUG: general protection fault: 0000 [#1] SMP Cc: pzijlstr@redhat.com MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4491 Lines: 99 Hi I've been just doing exit in rather 'large' firefox run and got this oops. Machine - T61, 64bit, C2D, 2GB, - kernel relatively fresh 2.6.28-rc9 it looks like casting in __set_page_dirty() is the place where this fault happens: (0xe8e) int (*spd)(struct page *) = mapping->a_ops->set_page_dirty; Maybe it was already invalid during process destruction ?? -- if (likely(mapping)) { e89: 48 85 c0 test %rax,%rax e8c: 74 3a je ec8 int (*spd)(struct page *) = mapping->a_ops->set_page_dirty; e8e: 48 8b 80 c8 00 00 00 mov 0xc8(%rax),%rax #ifdef CONFIG_BLOCK if (!spd) e95: 48 c7 c2 00 00 00 00 mov $0x0,%rdx static int __set_page_dirty(struct page *page) -- general protection fault: 0000 [#1] SMP last sysfs file: /sys/devices/pci0000:00/0000:00:1c.1/0000:03:00.0/rfkill/rfkill1/state Dumping ftrace buffer: (ftrace buffer empty) CPU 0 Modules linked in: fuse ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_tcpudp iptable_filter ip_ta bles x_tables bridge stp llc bluetooth autofs4 sunrpc ipv6 binfmt_misc dm_mirror dm_region_hash dm_log dm_mod rtc_cmos rtc_core rtc_lib kvm_intel kvm i915 drm uinput snd _hda_intel snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device arc4 snd_pcm_oss ecb cryptomgr snd_mixer_oss snd_pcm aead crypto_blkcipher crypto_algapi thinkpad_acpi i wl3945 sdhci_pci snd_timer sdhci snd e1000e button backlight led_class evdev sr_mod cdrom i2c_i801 soundcore rfkill mac80211 intel_agp i2c_core mmc_core nvram psmouse cf g80211 ac battery iTCO_wdt iTCO_vendor_support snd_page_alloc serio_raw uhci_hcd ohci_hcd ehci_hcd usbcore [last unloaded: microcode] Pid: 4081, comm: firefox Not tainted 2.6.28-rc9 #99 RIP: 0010:[] [] set_page_dirty+0x2e/0x100 RSP: 0018:ffff88005b31faa8 EFLAGS: 00010206 RAX: 683c1508e07cd70c RBX: ffffe200015b04c0 RCX: ffff8800042034e0 RDX: 8000000039d62067 RSI: 0000000000000007 RDI: ffffe200015b04c0 RBP: ffff88005b31fac8 R08: 0000000000000067 R09: ffff880001101200 R10: 0000000000000000 R11: 0000000000000000 R12: ffffe200015b04c0 R13: 00007f7a6f976000 R14: ffff88005b28fbb0 R15: 00000000001c3dcc FS: 00007f7a70aff950(0000) GS:ffffffff80705640(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00007f7a78698c08 CR3: 000000004aac7000 CR4: 00000000000026e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process firefox (pid: 4081, threadinfo ffff88005b31e000, task ffff88005b1a8000) Stack: ffff88005b31fac8 00007f7a6fa00000 ffffe200015b04c0 00007f7a6f976000 ffff88005b31fbc8 ffffffff802b7627 0000000000000067 00007f7a701fffff 0000000000000000 ffff88005b31fbe0 ffffffffffffffff 0000000000000000 Call Trace: [] unmap_vmas+0x6f7/0x920 [] exit_mmap+0xa6/0x170 [] mmput+0x48/0xe0 [] exit_mm+0x108/0x140 [] do_exit+0x177/0xa00 [] ? native_sched_clock+0x13/0x60 [] ? get_signal_to_deliver+0x245/0x3c0 [] ? _spin_unlock_irq+0x32/0x50 [] do_group_exit+0x45/0xc0 [] get_signal_to_deliver+0x28b/0x3c0 [] do_notify_resume+0xba/0x920 [] ? native_sched_clock+0x13/0x60 [] ? remove_wait_queue+0x46/0x60 [] ? trace_hardirqs_on_caller+0x133/0x190 [] ? trace_hardirqs_on+0xd/0x10 [] ? remove_wait_queue+0x46/0x60 [] ? default_wake_function+0x0/0x10 [] ? sysret_signal+0x5/0x2f [] ? trace_hardirqs_on_caller+0x133/0x190 [] ? sysret_signal+0x1f/0x2f [] ptregscall_common+0x67/0xb0 Code: e5 48 83 ec 20 48 89 5d e8 4c 89 65 f0 4c 89 6d f8 48 89 fb 48 8b 47 18 66 83 3f 00 0f 88 c8 00 00 00 a8 01 75 3f 48 85 c0 74 3a <48> 8b 80 c8 00 00 00 48 c7 c2 20 a0 2f 80 48 8b 40 20 48 89 df RIP [] set_page_dirty+0x2e/0x100 RSP ---[ end trace 0aff50e6830fbc8a ]--- Zdenek -- 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/