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Message-ID: <20071211182015.GA22339@linux.vnet.ibm.com> Date: Tue, 11 Dec 2007 23:50:15 +0530 From: Dhaval Giani <dhaval@...ux.vnet.ibm.com> To: "Fortier,Vincent [Montreal]" <Vincent.Fortier1@...GC.CA> Cc: Greg KH <gregkh@...e.de>, Randy Dunlap <randy.dunlap@...cle.com>, Andrew Morton <akpm@...ux-foundation.org>, linux-kernel@...r.kernel.org, mingo@...e.hu, Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>, kay.sievers@...y.org Subject: Re: 2.6.22.14 oops msg with commvault galaxy ? On Tue, Dec 11, 2007 at 12:47:29PM -0500, Fortier,Vincent [Montreal] wrote: > > -----Message d'origine----- > > De : linux-kernel-owner@...r.kernel.org > > [mailto:linux-kernel-owner@...r.kernel.org] De la part de Dhaval Giani > > > > On Tue, Dec 11, 2007 at 09:04:00AM -0800, Greg KH wrote: > > > On Tue, Dec 11, 2007 at 10:13:19PM +0530, Dhaval Giani wrote: > > > > On Tue, Dec 11, 2007 at 08:24:37PM +0530, Dhaval Giani wrote: > > > > > On Mon, Dec 10, 2007 at 09:15:01AM -0800, Randy Dunlap wrote: > > > > > > On Mon, 10 Dec 2007 09:03:17 -0500 Fortier,Vincent wrote: > > > > > > > > > > > > Ingo, can you look at this, please? > > > > > > Vincent is getting oopses on 2.6.22.14-cfs-etch. > > > > > > > > > > > > > > > > Hi, > > > > > > > > > > We are looking into this bug now. I believe that the patch at > > > > > http://marc.info/?l=linux-kernel&m=119404922603293 should help. > > > > > > > > > > I am working with Kay to get this ported. > > > > > > > > > > > > > Hi Vincent, > > > > > > > > Does the following patch help? > > > > > > > > Kay/Greg, could you please review and add your Signed-off-by(s) as > > > > > required? > > > > > > Um, why? What is this patch for? Where is it to be sent, to Linus > > > for 2.6.24-final? Or to the -stable tree? > > > > > > > Hi Greg, > > > > This is for 2.26.24-final, since Fair User scheduling is not > > yet there in stable. > > > > > > This is basically a port of the patch at > > > > http://marc.info/?l=linux-kernel&m=119404922603293 > > > > > > Yeah, but that patch needs some other core kobject changes, right? > > > > > > > Yep, there are some other changes that patch needed. We have > > worked around them by using the existing functions in the > > current Linus tree. > > > > > What exactly are you trying to fix here, the fact that this code > never > > > even worked? > > > > > > > The code was not using the kobject API. Its been cleaned up now (I > > hope!) > > It refused to apply cleanly on a 2.6.22.14 + CFS v24, only one failure > occured. So I resolved it manually and attached the resulting diff. > > My tests with Galaxy 5.9 shows that it still does not work. Although, > the error seems to have changed a bit (see attached dmesg) > Hmmm, makes me suspect the bug is somewhere else. What I am not able to figure out is that I was able to recreate the trace you had on my systems. So there is a bug somewhere there. Could you send your config please? > > > And, please, we need some documentation for Documenatation/ABI/ on > > > exactly what these sysfs files and tree is for. Please add that now > > > > for Linus's tree. > > > > On to it, will send the patch asap. > > > > > confused, > > > > hope i helped (in clearing it :) ) > > Should this patch eventually be included in? > 2.6.25 ? > 2.6.24 ? > (-stable 2.6.23 & 2.6.22) || backport CFS v24 -> v25 ? > 2.6.24 is what I believe, unless of course the bug lies elsewhere. -- regards, Dhaval [ 638.466375] BUG: unable to handle kernel paging request at virtual address 80000000 [ 638.466479] printing eip: [ 638.466527] c01d9182 [ 638.466574] *pdpt = 000000002d022001 [ 638.466622] *pde = 0000000000000000 [ 638.466672] Oops: 0000 [#1] [ 638.466719] SMP [ 638.466838] last sysfs file: /devices/platform/floppy.0/uevent [ 638.466890] 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 psmouse e752x_edac shpchp sr_mod pci_hotplug serio_raw edac_mc evdev pcspkr cdrom floppy ext3 jbd mbcache dm_mirror dm_snapshot dm_mod generic piix ide_core ata_piix ehci_hcd uhci_hcd tg3 usbcore thermal processor fan mptscsih mptbase megaraid_sas megaraid_mbox megaraid_mm cciss aacraid [ 638.469273] CPU: 3 [ 638.469274] EIP: 0060:[<c01d9182>] Not tainted VLI [ 638.469275] EFLAGS: 00010297 (2.6.22.14-cfs-etch-686-envcan #1) [ 638.469444] EIP is at vsnprintf+0x2af/0x48c [ 638.469504] eax: 80000000 ebx: ffffffff ecx: 80000000 edx: fffffffe [ 638.469567] esi: ebc29017 edi: ed019eac ebp: ffffffff esp: ed019e4c [ 638.469631] ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068 [ 638.469693] Process clBackup (pid: 4849, ti=ed018000 task=f6674c60 task.ti=ed018000) [ 638.469757] Stack: ec2a9000 00001000 c033b658 f899b56c c0236131 ec2a9000 143d6fe8 ebc29017 [ 638.470212] 00f9b608 00000000 ffffffff ffffffff 00000000 c0337ecb 00000003 00000017 [ 638.470665] c037a3a0 ec2a9000 c01d93e0 ed019eac ed019eac c02356ac ebc29017 c0337eca [ 638.471129] Call Trace: [ 638.471258] [<c0236131>] dev_uevent+0x189/0x1e0 [ 638.471377] [<c01d93e0>] sprintf+0x20/0x23 [ 638.471486] [<c02356ac>] show_uevent+0xad/0xd5 [ 638.471594] [<c0157189>] get_page_from_freelist+0x273/0x30a [ 638.471713] [<c01323b4>] group_send_sig_info+0x12/0x56 [ 638.471822] [<c0157272>] __alloc_pages+0x52/0x286 [ 638.471930] [<c02355ff>] show_uevent+0x0/0xd5 [ 638.472034] [<c02351be>] dev_attr_show+0x15/0x18 [ 638.472138] [<c01a8e91>] sysfs_read_file+0x87/0xd8 [ 638.472240] [<c018807c>] sys_getxattr+0x46/0x4e [ 638.472341] [<c01a8e0a>] sysfs_read_file+0x0/0xd8 [ 638.472445] [<c0171f77>] vfs_read+0xa6/0x128 [ 638.472551] [<c0172373>] sys_read+0x41/0x67 [ 638.472656] [<c0103d8a>] syscall_call+0x7/0xb [ 638.472765] ======================= [ 638.472822] Code: 74 24 28 73 03 c6 06 20 4d 46 85 ed 7f f1 e9 b9 00 00 00 8b 0f b8 59 0a 33 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 [ 638.475660] EIP: [<c01d9182>] vsnprintf+0x2af/0x48c SS:ESP 0068:ed019e4c -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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