Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754823Ab2BSTkp (ORCPT ); Sun, 19 Feb 2012 14:40:45 -0500 Received: from mail-tul01m020-f174.google.com ([209.85.214.174]:50949 "EHLO mail-tul01m020-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753913Ab2BSTkn convert rfc822-to-8bit (ORCPT ); Sun, 19 Feb 2012 14:40:43 -0500 Authentication-Results: mr.google.com; spf=pass (google.com: domain of przemyslaw@pawelczyk.it designates 10.60.20.101 as permitted sender) smtp.mail=przemyslaw@pawelczyk.it MIME-Version: 1.0 In-Reply-To: <20120218182436.GB1905@moon> References: <20120218173950.GA12595@albatros> <20120218182436.GB1905@moon> Date: Sun, 19 Feb 2012 20:40:42 +0100 Message-ID: Subject: Re: [BUG] task->nsproxy was unexpectedly NULL (caught in exit_shm) From: =?UTF-8?Q?Przemys=C5=82aw_Pawe=C5=82czyk?= To: Cyrill Gorcunov Cc: Vasiliy Kulikov , lkml , akpm@linux-foundation.org, Oleg Nesterov Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5913 Lines: 112 A few minutes ago I was closing a tab in Chrome and I heard BEEP! This time my mouse and keyboard stopped responding in X, have to ssh from notebook to read log. (I was using Synergy today, so maybe it is related.) [14498.686122] chrome[2336] general protection ip:21cafad51d9a sp:7fff74f13410 error:0 [14519.038834] BUG: Bad page map in process chrome pte:800000010238c067 pmd:12de61067 [14519.038849] page:ffffea000387c6a0 count:0 mapcount:-1 mapping: (null) index:0x23bd65b39 [14519.038855] page flags: 0x200000000000014(referenced|dirty) [14519.038866] addr:00007fecb619c000 vm_flags:080000fb anon_vma: (null) mapping:ffff8800802b11d8 index:2ae [14519.038879] vma->vm_ops->fault: shm_fault+0x0/0x18 [14519.038886] vma->vm_file->f_op->mmap: shm_mmap+0x0/0x55 [14519.038894] Pid: 9108, comm: chrome Tainted: P B O 3.2.0-1-amd64 #1 [14519.038899] Call Trace: [14519.038913] [] ? print_bad_pte+0x1a5/0x1bd [14519.038920] [] ? pte_pfn+0x5/0xe [14519.038928] [] ? unmap_vmas+0x49f/0x694 [14519.038936] [] ? cpumask_next+0x16/0x18 [14519.038946] [] ? exit_mmap+0x93/0xe1 [14519.038956] [] ? mmput+0x56/0xf8 [14519.038964] [] ? exit_mm+0x117/0x122 [14519.038975] [] ? _raw_spin_lock_irq+0xa/0x14 [14519.038983] [] ? do_exit+0x246/0x732 [14519.038992] [] ? do_group_exit+0x74/0x9e [14519.039001] [] ? get_signal_to_deliver+0x46d/0x48f [14519.039012] [] ? do_signal+0x38/0x610 [14519.039024] [] ? sys_futex+0x138/0x148 [14519.039032] [] ? do_notify_resume+0x25/0x68 [14519.039041] [] ? int_signal+0x12/0x17 [14519.061778] ------------[ cut here ]------------ [14519.061786] kernel BUG at /home/blank/debian/kernel/release/linux-2.6/linux-2.6-3.2.4/debian/build/source_amd64_none/mm/filemap.c:135! [14519.061789] invalid opcode: 0000 [#1] SMP [14519.061792] CPU 1 [14519.061793] Modules linked in: pci_stub vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) powernow_k8 mperf cpufreq_stats cpufreq_conservative cpufreq_userspace cpufreq_powersave parport_pc ppdev lp parport binfmt_misc nfsd nfs lockd fscache auth_rpcgss nfs_acl sunrpc kvm_amd kvm fuse ext2 loop snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_intel8x0 snd_ac97_codec ac97_bus snd_hwdep nvidia(P) snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_midi k8temp snd_rawmidi snd_seq_midi_event snd_seq evdev pcspkr edac_core edac_mce_amd i2c_nforce2 snd_timer snd_seq_device i2c_core snd soundcore snd_page_alloc processor button ext3 jbd mbcache btrfs zlib_deflate crc32c libcrc32c dm_mirror dm_region_hash dm_log usbhid dm_mod sr_mod hid cdrom sd_mod crc_t10dif ohci_hcd ata_generic ahci libahci pata_jmicron sata_nv pata_amd thermal floppy libata fan thermal_sys ehci_hcd forcedeth scsi_mod usbcore usb_common [last unloaded: scsi_wait_scan] [14519.061852] [14519.061855] Pid: 2171, comm: Xorg Tainted: P B O 3.2.0-1-amd64 #1 Unknow Unknow/KN9 Series(NF-CK804) [14519.061859] RIP: 0010:[] [] __delete_from_page_cache+0x5b/0xc8 [14519.061868] RSP: 0018:ffff88012f50dc28 EFLAGS: 00010046 [14519.061870] RAX: 0000000000000000 RBX: ffffea00038b46a0 RCX: 00000000fffffff0 [14519.061872] RDX: 0000000000000017 RSI: 0000000000000017 RDI: 00000000fffffff4 [14519.061875] RBP: ffff8800802b11d8 R08: 000000000000002e R09: 0000000000000002 [14519.061877] R10: 000000000000000d R11: 000000000000000d R12: ffff8800802b11f0 [14519.061879] R13: 0000000000000000 R14: ffffffffffffffff R15: 0000000000000000 [14519.061882] FS: 00007f589e4be880(0000) GS:ffff880137d00000(0000) knlGS:0000000000000000 [14519.061885] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [14519.061887] CR2: 00007f6fec16b548 CR3: 000000012f725000 CR4: 00000000000006e0 [14519.061890] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [14519.061892] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [14519.061895] Process Xorg (pid: 2171, threadinfo ffff88012f50c000, task ffff88013133d200) [14519.061897] Stack: [14519.061898] 000000000000000d ffffea00038b46a0 0000000000000000 ffffffff810b45e3 [14519.061902] ffffea00038b46a0 ffff8800802b11d8 ffff8800802b11d8 ffffffff810bda39 [14519.061906] 00000000000002bb ffff8800802b1098 00000000000002ae ffffffff810c6451 [14519.061910] Call Trace: [14519.061914] [] ? delete_from_page_cache+0x31/0x57 [14519.061919] [] ? truncate_inode_page+0x65/0x6b [14519.061924] [] ? shmem_truncate_range+0x110/0x355 [14519.061928] [] ? shmem_evict_inode+0x48/0xd7 [14519.061932] [] ? evict+0x96/0x148 [14519.061937] [] ? dentry_kill+0x10f/0x12b [14519.061940] [] ? dput+0xe2/0xee [14519.061943] [] ? fput+0x17a/0x1a1 [14519.061947] [] ? remove_vma+0x3a/0x6b [14519.061950] [] ? do_munmap+0x2da/0x2f3 [14519.061955] [] ? sys_shmdt+0x97/0x121 [14519.061960] [] ? system_call_fastpath+0x16/0x1b [14519.061962] Code: be 09 00 00 00 48 89 df e8 4e 54 01 00 48 8b 03 a9 00 00 08 00 74 0d be 17 00 00 00 48 89 df e8 37 54 01 00 8b 43 18 85 c0 78 02 <0f> 0b 48 8b 03 a8 10 74 5f 48 8b 85 80 00 00 00 f6 40 20 01 75 [14519.061991] RIP [] __delete_from_page_cache+0x5b/0xc8 [14519.061995] RSP [14519.061998] ---[ end trace 2d2427cb6602dc70 ]--- Regards. -- Przemysław Pawełczyk -- 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/