Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754261AbXLLM6G (ORCPT ); Wed, 12 Dec 2007 07:58:06 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751535AbXLLM55 (ORCPT ); Wed, 12 Dec 2007 07:57:57 -0500 Received: from fwstl1-1.wul.qc.ec.gc.ca ([205.211.132.24]:25125 "EHLO ecqcmtlbh.quebec.int.ec.gc.ca" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751388AbXLLM54 convert rfc822-to-8bit (ORCPT ); Wed, 12 Dec 2007 07:57:56 -0500 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT Subject: RE: 2.6.22.14 oops msg with commvault galaxy ? Date: Wed, 12 Dec 2007 07:57:33 -0500 Message-ID: In-Reply-To: <20071212070816.GA31455@linux.vnet.ibm.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: 2.6.22.14 oops msg with commvault galaxy ? Thread-Index: Acg8jfiUfoMfIWNGT/Wuvcw+dxRQZwALQCRQ References: <20071210091501.deed38fa.randy.dunlap@oracle.com> <20071211145437.GA15617@linux.vnet.ibm.com> <20071211164319.GA14783@linux.vnet.ibm.com> <20071211170400.GA4861@suse.de> <20071211172338.GA17896@linux.vnet.ibm.com> <20071211182015.GA22339@linux.vnet.ibm.com> <20071211182528.GA5597@linux.vnet.ibm.com> <20071211210653.GA6902@elte.hu> <20071212070816.GA31455@linux.vnet.ibm.com> From: "Fortier,Vincent [Montreal]" To: "Dhaval Giani" , "Ingo Molnar" Cc: "Greg KH" , "Randy Dunlap" , "Andrew Morton" , , "Srivatsa Vaddagiri" , , "Balbir Singh" X-OriginalArrivalTime: 12 Dec 2007 12:57:35.0113 (UTC) FILETIME=[90D10790:01C83CBE] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 7322 Lines: 164 > -----Message d'origine----- > De : Dhaval Giani [mailto:dhaval@linux.vnet.ibm.com] > > On Tue, Dec 11, 2007 at 10:06:53PM +0100, Ingo Molnar wrote: > > > > * Fortier,Vincent [Montreal] wrote: > > > > > > That has changed from /sys/kernel/uids//cpu_share > > > > > > Here is my config. > > > > > > Maybie I should give it a shot without CFS at all and see what > > > happends ? It got triggerred also using a 2.6.22.14: [57560.396000] BUG: unable to handle kernel paging request at virtual address 80000000 [57560.396000] printing eip: [57560.396000] c01d6c56 [57560.396000] *pdpt = 0000000008d02001 [57560.396000] *pde = 0000000000000000 [57560.396000] Oops: 0000 [#34] [57560.396000] SMP [57560.396000] last sysfs file: /devices/platform/floppy.0/uevent [57560.396000] Modules linked in: xfs drbd cn nfs nfsd exportfs lockd nfs_acl sunrpc ppdev parport_pc lp parport button ac battery ipv6 fuse ide_cd ide_generic usbkbd usbmouse tsdev iTCO_wdt iTCO_vendor_support psmouse e752x_edac edac_mc serio_raw evdev pcspkr sg floppy shpchp pci_hotplug sr_mod cdrom ext3 jbd mbcache dm_mirror dm_snapshot dm_mod generic piix ide_core tg3 ata_piix ehci_hcd uhci_hcd usbcore thermal processor fan mptscsih mptbase megaraid_sas megaraid_mbox megaraid_mm cciss aacraid [57560.396000] CPU: 2 [57560.396000] EIP: 0060:[] Not tainted VLI [57560.396000] EFLAGS: 00010297 (2.6.22.14-etch-686-envcan #1) [57560.396000] EIP is at vsnprintf+0x2af/0x48c [57560.396000] eax: 80000000 ebx: ffffffff ecx: 80000000 edx: fffffffe [57560.396000] esi: edf37017 edi: edf09eac ebp: ffffffff esp: edf09e4c [57560.396000] ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068 [57560.396000] Process clBackup (pid: 31421, ti=edf08000 task=f7d36530 task.ti=edf08000) [57560.396000] Stack: c852b000 00001000 c0338c78 f895b56c c0233bf5 c852b000 120c8fe8 edf37017 [57560.396000] 00c3bd08 00000000 ffffffff ffffffff 00000000 c03354eb 00000003 00000017 [57560.396000] c0376dc0 c852b000 c01d6eb4 edf09eac edf09eac c0233170 edf37017 c03354ea [57560.396000] Call Trace: [57560.396000] [] dev_uevent+0x189/0x1e0 [57560.396000] [] sprintf+0x20/0x23 [57560.396000] [] show_uevent+0xad/0xd5 [57560.396000] [] get_page_from_freelist+0x296/0x32d [57560.396000] [] group_send_sig_info+0x12/0x56 [57560.396000] [] __alloc_pages+0x52/0x294 [57560.396000] [] show_uevent+0x0/0xd5 [57560.396000] [] dev_attr_show+0x15/0x18 [57560.396000] [] sysfs_read_file+0x87/0xd8 [57560.396000] [] sys_getxattr+0x46/0x4e [57560.396000] [] sysfs_read_file+0x0/0xd8 [57560.396000] [] vfs_read+0xa6/0x128 [57560.396000] [] sys_read+0x41/0x67 [57560.396000] [] syscall_call+0x7/0xb [57560.396000] ======================= [57560.396000] Code: 74 24 28 73 03 c6 06 20 4d 46 85 ed 7f f1 e9 b9 00 00 00 8b 0f b8 79 e0 32 c0 8b 54 24 2c 81 f9 ff 0f 00 00 0f 46 c8 89 c8 eb 06 <80> 38 00 74 07 40 4a 83 fa ff 75 f4 29 c8 f6 44 24 30 10 89 c3 [57560.396000] EIP: [] vsnprintf+0x2af/0x48c SS:ESP 0068:edf09e4c > > > > and also with CFS but without CONFIG_FAIR_GROUP_SCHED. > > Is it still required since it now does not seems to be CFS related? > > Hi Ingo, > > I am able to reproduce the oops here on my system with > 2.6.22.14 + CFS backport. I am not able to reproduce it with > 2.6.22.13 + CFS backport. I believe the CFS backport is just > exposing the bug. Can't find an obvious culprit and am > looking into this issue. > > Vincent, could you please confirm if you are able to > reproduce this with > 2.6.22.13 + CFS? Using 2.6.13 + CFS v24 I was also able to reproduce the bug (I already had one built in my depot without the display_most-recently-opened_sysfs_file_name_when_oopsing.patch). So it looks like it is at least related to >= 2.6.22.13 and probably not directly CFS related. Note that to get a oops on a 2.6.13 it seems to need a full backup since it usually works with incremental. The backup does start properly then, in this case, at around 70% it oopsed. Using 2.6.22.14 it seems to oops right at startup. Here is the 2.6.22.13 CFS v24 oops: [ 170.152908] SGI XFS Quota Management subsystem [ 170.168443] Filesystem "drbd0": Disabling barriers, not supported by the underlying device [ 170.174964] XFS mounting filesystem drbd0 [ 170.232455] Ending clean XFS mount for filesystem: drbd0 [ 170.318614] Filesystem "drbd1": Disabling barriers, not supported by the underlying device [ 170.327708] XFS mounting filesystem drbd1 [ 170.380481] Ending clean XFS mount for filesystem: drbd1 [ 947.493764] BUG: unable to handle kernel NULL pointer dereference at virtual address 000000c8 [ 947.493797] printing eip: [ 947.493810] c01a922c [ 947.493823] *pdpt = 000000002a97a001 [ 947.493837] *pde = 0000000000000000 [ 947.493852] Oops: 0000 [#1] [ 947.493865] SMP [ 947.493881] Modules linked in: xfs drbd cn nfs nfsd exportfs lockd nfs_acl sunrpc ppdev parport_pc lp parport button ac battery ipv6 fuse ide_cd ide_generic usbkbd usbmouse tsdev iTCO_wdt iTCO_vendor_support sg e752x_edac psmouse edac_mc pcspkr evdev shpchp pci_hotplug serio_raw sr_mod floppy cdrom ext3 jbd mbcache dm_mirror dm_snapshot dm_mod generic piix ide_core ehci_hcd uhci_hcd ata_piix usbcore tg3 thermal processor fan mptscsih mptbase megaraid_sas megaraid_mbox megaraid_mm cciss aacraid [ 947.494099] CPU: 0 [ 947.494100] EIP: 0060:[] Not tainted VLI [ 947.494102] EFLAGS: 00010202 (2.6.22.13-cfs-etch-686-envcan #1) [ 947.494148] EIP is at sysfs_open_file+0x78/0x1e4 [ 947.494163] eax: 00000000 ebx: dff18440 ecx: 0000000d edx: 000000c8 [ 947.494181] esi: f7fc118c edi: eb385f30 ebp: c01a91b4 esp: eb385edc [ 947.494199] ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068 [ 947.494217] Process clBackup (pid: 5273, ti=eb384000 task=f6558000 task.ti=eb384000) [ 947.494235] Stack: ec339cc0 eafae158 f7fc1148 ec339cc0 eafae158 eb385f30 c01a91b4 c01704ac [ 947.494278] dfaa8080 eafad220 ec339cc0 00008000 eb385f30 00000010 c01705dd ec339cc0 [ 947.494321] 00000000 00000000 c017061e 00000000 eb385f30 eafad220 dfaa8080 f711dd00 [ 947.494364] Call Trace: [ 947.494389] [] sysfs_open_file+0x0/0x1e4 [ 947.494407] [] __dentry_open+0xc1/0x178 [ 947.494429] [] nameidata_to_filp+0x24/0x33 [ 947.494450] [] do_filp_open+0x32/0x39 [ 947.494475] [] get_unused_fd+0x4a/0xaa [ 947.494496] [] do_sys_open+0x42/0xc3 [ 947.494518] [] sys_open+0x1c/0x1e [ 947.494537] [] syscall_call+0x7/0xb [ 947.494561] ======================= [ 947.494577] Code: 14 24 83 7c 24 08 00 8b 42 0c 8b 40 54 8b 70 14 0f 84 70 01 00 00 85 f6 0f 84 68 01 00 00 8b 56 04 85 d2 74 19 64 a1 08 50 3d c0 <83> 3a 02 0f 84 42 01 00 00 c1 e0 05 ff 84 10 20 01 00 00 8b 54 [ 947.494743] EIP: [] sysfs_open_file+0x78/0x1e4 SS:ESP 0068:eb385edc - vin -- 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/