From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757888Ab0IGQDF (ORCPT ); Tue, 7 Sep 2010 12:03:05 -0400 Received: from mail-pw0-f46.google.com ([209.85.160.46]:65328 "EHLO mail-pw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756896Ab0IGQDD (ORCPT ); Tue, 7 Sep 2010 12:03:03 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; b=dThhY6W4wajUn+SPXmdYQdpeseDR+GZ09s3QjFehXYUwBJrjRaqUaekaTrYC1aaaz+ d09GtYGp86yXE5NJ9jr8wB4o9ASRuTEMlQcfn0BUyPGieBXkGLIk+6OBY7EX7v3PQoWT IpEikiHwSGYLZCgR3OZJjeA8dn0lLt9lYi9pk= Message-ID: <4C866250.3020902@gmail.com> Date: Tue, 07 Sep 2010 09:03:28 -0700 From: "Justin P. Mattock" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:2.0b5pre) Gecko/20100827 Thunderbird/3.2a1pre MIME-Version: 1.0 To: Eric Sandeen CC: linux-ext4@vger.kernel.org, Linux Kernel Mailing List Subject: Re: BUG ext4_inode_cache: Padding overwritten. 0xffff88000008fe00-0xffff88000008fe32 References: <4C865213.2070002@redhat.com> In-Reply-To: <4C865213.2070002@redhat.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09/07/2010 07:54 AM, Eric Sandeen wrote: > Justin Mattock wrote: >> Im not sure if theres already assigned to this or not... but noticed >> this in dmesg.. >> only thing I remember was building glibc, and looking into an issue >> with it, suspended a few times and such.. > > hm so ext4's inode cache got overwritten, indicative of memory corruption > but hard to know how it happened; it's not necessarily (maybe even likely) > an ext4 bug... not quite sure how to track it down though. > > > Also the M taint indicates: > > 5: 'M' if any processor has reported a Machine Check Exception, > ' ' if no Machine Check Exceptions have occurred. > > so something may have gone wrong before this. > > -Eric I was doing a bisect on glibc to find a certain commit, maybe the constant installation of those libraries, and the combination of putting the machine a sleep while I was doing other things caused this to fire off.(after doing all of this, and letting the machine idol and run, nothing like this showed up.) > >> [13299.426905] ============================================================================= >> [13299.426913] BUG ext4_inode_cache: Padding overwritten. >> 0xffff88000008fe00-0xffff88000008fe32 >> [13299.426919] ----------------------------------------------------------------------------- >> [13299.426922] >> [13299.426928] INFO: Slab 0xffffea0000001ea0 objects=13 used=11 >> fp=0xffff88000008d798 flags=0x4081 >> [13299.426936] Pid: 17044, comm: rm Tainted: G M >> 2.6.36-rc3-00001-gb0425ef #2 >> [13299.426942] Call Trace: >> [13299.426955] [] slab_err+0x89/0x95 >> [13299.426966] [] ? call_rcu_sched+0x10/0x12 >> [13299.426974] [] ? call_rcu+0x9/0xb >> [13299.426982] [] slab_pad_check.part.46+0xc0/0xf7 >> [13299.426991] [] ? ext4_destroy_inode+0x96/0x9d >> [13299.426999] [] check_slab+0x94/0x9a >> [13299.427008] [] __slab_free+0x15e/0x342 >> [13299.427008] [] kmem_cache_free+0x96/0xed >> [13299.427008] [] ext4_destroy_inode+0x96/0x9d >> [13299.427008] [] ? __fsnotify_inode_delete+0x9/0xb >> [13299.427008] [] ? __destroy_inode+0x27/0x76 >> [13299.427008] [] destroy_inode+0x2a/0x3f >> [13299.427008] [] iput+0x223/0x228 >> [13299.427008] [] do_unlinkat+0x118/0x16b >> [13299.427008] [] ? sys_newfstatat+0x25/0x2e >> [13299.427008] [] ? audit_syscall_entry+0x1d1/0x1fd >> [13299.427008] [] sys_unlinkat+0x24/0x26 >> [13299.427008] [] system_call_fastpath+0x16/0x1b >> [13299.427008] Padding 0xffff88000008fb8b: 00 ad 4e ad de ff ff ff >> ff 00 00 00 00 ff ff ff .­N­Þÿÿÿÿ....ÿÿÿ >> [13299.427008] Padding 0xffff88000008fb9b: ff ff ff ff ff a0 fb 08 >> 00 00 88 ff ff a0 fb 08 ÿÿÿÿÿ.û....ÿÿ.û. >> [13299.427008] Padding 0xffff88000008fbab: 00 00 88 ff ff 00 00 00 >> 00 00 00 00 00 b8 fb 08 ...ÿÿ........¸û. >> [13299.427008] Padding 0xffff88000008fbbb: 00 00 88 ff ff b8 fb 08 >> 00 00 88 ff ff 00 00 00 ...ÿÿ¸û....ÿÿ... >> [13299.427008] Padding 0xffff88000008fbcb: 00 00 00 00 00 25 53 d9 >> 92 00 00 00 00 00 00 00 .....%SÙ........ >> [13299.427008] Padding 0xffff88000008fbdb: 00 00 00 00 00 00 00 00 >> 00 00 00 00 00 d9 59 bb .............ÙY» >> [13299.427008] Padding 0xffff88000008fbeb: 00 01 00 00 00 00 00 00 >> 00 00 00 00 00 10 1a b7 ...............· >> [13299.427008] Padding 0xffff88000008fbfb: 2e 00 88 ff ff ff ff ff >> ff ff ff ff ff ff ff ff ...ÿÿÿÿÿÿÿÿÿÿÿÿÿ >> [13299.427008] Padding 0xffff88000008fc0b: ff ff ff ff ff 00 00 00 >> 00 00 00 00 00 00 00 00 ÿÿÿÿÿ........... >> [13299.427008] Padding 0xffff88000008fc1b: 00 00 00 00 00 00 00 00 >> 00 00 00 00 00 00 01 10 ................ >> [13299.427008] Padding 0xffff88000008fc2b: 00 00 00 ad de 00 02 20 >> 00 00 00 ad de 80 f9 08 ...­Þ......­Þ.ù. >> [13299.427008] Padding 0xffff88000008fc3b: 00 00 88 ff ff 00 00 00 >> 00 5a 5a 5a 5a b8 b6 28 ...ÿÿ....ZZZZ¸¶( >> [13299.427008] Padding 0xffff88000008fc4b: 00 00 00 00 00 00 00 00 >> 00 01 00 00 00 02 00 00 ................ >> [13299.427008] Padding 0xffff88000008fc5b: 00 00 00 00 00 a2 99 81 >> 4c 00 00 00 00 13 41 21 .....¢..L.....A! >> [13299.427008] Padding 0xffff88000008fc6b: 37 00 00 00 00 70 fc 08 >> 00 00 88 ff ff 70 fc 08 7....pü....ÿÿpü. >> [13299.427008] Padding 0xffff88000008fc7b: 00 00 88 ff ff 01 01 00 >> 00 ad 4e ad de ff ff ff ...ÿÿ....­N­Þÿÿÿ >> [13299.427008] Padding 0xffff88000008fc8b: ff 5a 5a 5a 5a ff ff ff >> ff ff ff ff ff ff ff ff ÿZZZZÿÿÿÿÿÿÿÿÿÿÿ >> [13299.427008] Padding 0xffff88000008fc9b: ff 00 00 00 00 00 00 00 >> 00 00 00 00 00 00 00 5a ÿ..............Z >> [13299.427008] Padding 0xffff88000008fcab: 5a 5a 5a 5a 5a 00 00 00 >> 00 00 00 00 00 00 00 00 ZZZZZ........... >> [13299.427008] Padding 0xffff88000008fcbb: 00 1c 00 5a 5a 0e 0e 00 >> 00 ad 4e ad de ff ff ff ...ZZ....­N­Þÿÿÿ >> [13299.427008] Padding 0xffff88000008fccb: ff 5a 5a 5a 5a ff ff ff >> ff ff ff ff ff d8 fc 08 ÿZZZZÿÿÿÿÿÿÿÿØü. >> [13299.427008] Padding 0xffff88000008fcdb: 00 00 88 ff ff d8 fc 08 >> 00 00 88 ff ff 00 00 00 ...ÿÿØü....ÿÿ... >> [13299.427008] Padding 0xffff88000008fceb: 00 ad 4e ad de ff ff ff >> ff 5a 5a 5a 5a ff ff ff .­N­ÞÿÿÿÿZZZZÿÿÿ >> [13299.427008] Padding 0xffff88000008fcfb: ff ff ff ff ff 00 00 00 >> 00 00 00 00 00 bb 59 03 ÿÿÿÿÿ........»Y. >> [13299.427008] Padding 0xffff88000008fd0b: 00 bb 59 03 00 cc cc cc >> cc cc cc cc cc e8 f3 08 .»Y..ÌÌÌÌÌÌÌÌèó. >> [13299.427008] Padding 0xffff88000008fd1b: 00 00 88 ff ff 9f 60 14 >> 81 ff ff ff ff 01 00 00 ...ÿÿ.`..ÿÿÿÿ... >> [13299.427008] Padding 0xffff88000008fd2b: 00 c0 28 00 00 a5 58 bb >> 00 01 00 00 00 b9 c1 14 .À(..¥X».....¹Á. >> [13299.427008] Padding 0xffff88000008fd3b: 81 ff ff ff ff 01 00 00 >> 00 0f 1c 00 00 b0 7a ba .ÿÿÿÿ........°zº >> [13299.427008] Padding 0xffff88000008fd4b: 00 01 00 00 00 5a 5a 5a >> 5a 5a 5a 5a 5a 5a 5a 5a .....ZZZZZZZZZZZ >> [13299.427008] Padding 0xffff88000008fd5b: 5a 5a 5a 5a 5a 5a 5a 5a >> 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ >> [13299.427008] Padding 0xffff88000008fd6b: 5a 5a 5a 5a 5a 5a 5a 5a >> 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ >> [13299.427008] Padding 0xffff88000008fd7b: 5a 5a 5a 5a 5a 5a 5a 5a >> 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ >> [13299.427008] Padding 0xffff88000008fd8b: 5a 5a 5a 5a 5a 5a 5a 5a >> 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ >> [13299.427008] Padding 0xffff88000008fd9b: 5a 5a 5a 5a 5a 5a 5a 5a >> 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ >> [13299.427008] Padding 0xffff88000008fdab: 5a 5a 5a 5a 5a 5a 5a 5a >> 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ >> [13299.427008] Padding 0xffff88000008fdbb: 5a 5a 5a 5a 5a 5a 5a 5a >> 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ >> [13299.427008] Padding 0xffff88000008fdcb: 5a 5a 5a 5a 5a 5a 5a 5a >> 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ >> [13299.427008] Padding 0xffff88000008fddb: 5a 5a 5a 5a 5a 5a 5a 5a >> 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ >> [13299.427008] Padding 0xffff88000008fdeb: 5a 5a 5a 5a 5a 5a 5a 5a >> 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ >> [13299.427008] Padding 0xffff88000008fdfb: 5a 5a 5a 5a 5a 00 5a 5a >> 5a 10 20 0f 3f 00 80 00 ZZZZZ.ZZZ...?... >> [13299.427008] Padding 0xffff88000008fe0b: 00 c7 60 ed 3f 3f 00 10 >> df ed 3f ff 07 10 c0 ed .Ç`í??..ßí?ÿ..Àí >> [13299.427008] Padding 0xffff88000008fe1b: 3f fa 33 c9 33 d2 b8 3c >> fe 08 00 0f 01 c8 b8 31 ?ú3É3Ò¸<þ....ȸ1 >> [13299.427008] Padding 0xffff88000008fe2b: 00 00 00 0f 01 c9 eb e9 >> .....Éëé >> [13299.427008] FIX ext4_inode_cache: Restoring >> 0xffff88000008fb8b-0xffff88000008fe32=0x5a >> [13299.427008] >> [13369.168442] general protection fault: 0000 [#1] SMP >> [13369.168448] last sysfs file: /sys/devices/platform/applesmc.768/light >> [13369.168451] CPU 0 >> [13369.168453] Modules linked in: xfrm4_mode_transport xcbc rmd160 >> sha512_generic sco bnep xt_tcpudp ipt_LOG iptable_nat nf_nat xt_state >> nf_conntrack_ftp nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 >> iptable_filter ip_tables x_tables snd_hda_codec_idt ath9k >> firewire_ohci firewire_core ath9k_common evdev ath9k_hw ohci1394 >> joydev button thermal battery sky2 ac ath snd_hda_intel snd_hda_codec >> snd_hwdep snd_pcm snd_timer snd soundcore snd_page_alloc i2c_i801 >> video aes_x86_64 lzo lzo_compress tun kvm_intel ipcomp xfrm_ipcomp >> crypto_null sha256_generic cbc des_generic cast5 blowfish serpent >> camellia twofish_generic twofish_x86_64 twofish_common ctr ah4 esp4 >> authenc raw1394 ieee1394 uhci_hcd ehci_hcd hci_uart rfcomm btusb hidp >> l2cap bluetooth coretemp acpi_cpufreq processor mperf appletouch >> applesmc >> [13369.168522] >> [13369.168526] Pid: 21876, comm: objdump Tainted: G M >> 2.6.36-rc3-00001-gb0425ef #2 Mac-F42187C8/MacBookPro2,2 >> [13369.168529] RIP: 0010:[] [] >> selinux_dentry_open+0x27/0x91 >> [13369.168540] RSP: 0018:ffff88000dcb7c98 EFLAGS: 00010292 >> [13369.168543] RAX: 5a5a5a5a5a5a5a5a RBX: ffff88000008f980 RCX: ffff880001800000 >> [13369.168545] RDX: ffff880001800000 RSI: ffff88000ddf6800 RDI: ffff880030d6f500 >> [13369.168548] RBP: ffff88000dcb7cb8 R08: 0000000000000000 R09: ffff88001aa70360 >> [13369.168551] R10: ffff880030f25c6c R11: ffff88000191c000 R12: ffff880030d6f500 >> [13369.168553] R13: ffff88001e6b79a0 R14: ffff88000ddf6800 R15: ffff88000008f980 >> [13369.168557] FS: 00002ab84b7ebb20(0000) GS:ffff880001800000(0000) >> knlGS:0000000000000000 >> [13369.168560] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 >> [13369.168562] CR2: 00002ab84b52b300 CR3: 00000000276ed000 CR4: 00000000000006f0 >> [13369.168565] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 >> [13369.168568] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 >> [13369.168571] Process objdump (pid: 21876, threadinfo >> ffff88000dcb6000, task ffff88001e799ec0) >> [13369.168573] Stack: >> [13369.168575] ffff880030d6f500 ffff88003ecf08c0 ffff88001aa70360 >> 0000000000000000 >> [13369.168579]<0> ffff88000dcb7cd8 ffffffff8119afc9 ffff880030d6f500 >> ffff880030d6f500 >> [13369.168584]<0> ffff88000dcb7d48 ffffffff810e8ebc ffff88000dcb7d18 >> ffffffff810f2f78 >> [13369.168589] Call Trace: >> [13369.168595] [] security_dentry_open+0x19/0x4c >> [13369.168601] [] __dentry_open+0x159/0x2be >> [13369.168607] [] ? generic_permission+0x17/0xa4 >> [13369.168611] [] nameidata_to_filp+0x3a/0x4b >> [13369.168616] [] do_last+0x504/0x691 >> [13369.168620] [] do_filp_open+0x1f0/0x621 >> [13369.168625] [] ? alloc_fd+0x102/0x114 >> [13369.168629] [] do_sys_open+0x5b/0xf7 >> [13369.168633] [] sys_open+0x1b/0x1d >> [13369.168639] [] system_call_fastpath+0x16/0x1b >> [13369.168642] Code: ff ff c9 c3 55 48 89 e5 41 56 49 89 f6 41 55 41 >> 54 49 89 fc 53 48 8b 47 18 4c 8b af c0 00 00 00 48 8b 58 28 48 8b 83 >> 78 02 00 00<8b> 40 1c 41 89 45 08 e8 a1 af ff ff 41 89 45 0c 41 8b 44 >> 24 54 >> [13369.168681] RIP [] selinux_dentry_open+0x27/0x91 >> [13369.168685] RSP >> [13369.168688] ---[ end trace a79a28a58d538d97 ]--- >> >> as for performance issues,would of never know about this if I hadnt >> looked in dmesg. >> >> > >