From: "Chakri n" Subject: OOPS in shrink_dcache_for_umount Date: Thu, 2 Aug 2007 14:27:04 -0700 Message-ID: <92cbf19b0708021427l7c88c642g3901e393ac2b90b9@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: nfs@lists.sourceforge.net, linux-kernel@vger.kernel.org Return-path: Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.92] helo=mail.sourceforge.net) by sc8-sf-list2-new.sourceforge.net with esmtp (Exim 4.43) id 1IGiCE-0006Ue-AR for nfs@lists.sourceforge.net; Thu, 02 Aug 2007 14:27:03 -0700 Received: from nz-out-0506.google.com ([64.233.162.239]) by mail.sourceforge.net with esmtp (Exim 4.44) id 1IGiCI-0000Sc-4o for nfs@lists.sourceforge.net; Thu, 02 Aug 2007 14:27:06 -0700 Received: by nz-out-0506.google.com with SMTP id f1so1134039nzc for ; Thu, 02 Aug 2007 14:27:05 -0700 (PDT) List-Id: "Discussion of NFS under Linux development, interoperability, and testing." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: nfs-bounces@lists.sourceforge.net Errors-To: nfs-bounces@lists.sourceforge.net Hi, We are seeing this problem while unmounting file systems. It happens once in a while. I am able to grab the trace and core from linux-2.6.18-1.8.el5, but I have observed the same problem with linux-2.6.20.1 kernel. Has this problem fixed in recent kernel? BUG: Dentry f7498f70{i=12803e,n=client72} still in use (1) [unmount of nfs 0:18] ------------[ cut here ]------------ kernel BUG at fs/dcache.c:615! invalid opcode: 0000 [#1] SMP last sysfs file: /block/ram0/range Modules linked in: nfs fscache nfsd exportfs lockd nfs_acl ipmi_msghandler kazprocs(U) sunrpc ipv6 dm_mirror dm_mod video sbs i2c_ec button battery asus_acpi ac lp floppy snd_intel8x0 snd_ac97_cod ec snd_ac97_bus snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss sn d_mixer_oss snd_pcm snd_timer snd soundcore snd_page_alloc ide_cd e100 parport_pc i2c_i801 mii par port pcspkr i2c_core cdrom serio_raw ata_piix libata sd_mod scsi_mod ext3 jbd ehci_hcd ohci_hcd uh ci_hcd CPU: 0 EIP: 0060:[] Not tainted VLI EFLAGS: 00010246 (2.6.18-8.el5 #1) EIP is at shrink_dcache_for_umount_subtree+0x133/0x1c1 eax: 00000054 ebx: f7498f70 ecx: c0621b24 edx: de121ee8 esi: 00000001 edi: f7835740 ebp: 0012803e esp: de121ee4 ds: 007b es: 007b ss: 0068 Process umount.nfs (pid: 29559, ti=de121000 task=ebbe5000 task.ti=de121000) Stack: c0621b24 f7498f70 0012803e f7498fd4 00000001 f8d55765 f7835740 f7835600 f8d67980 00000000 00000000 c047ec5d f7835600 c0470153 00000018 f8d67960 c0470248 e1b0d380 f8d3a175 f7835600 c04702d7 f74629c0 f7835600 c0483165 Call Trace: [] shrink_dcache_for_umount+0x2e/0x3a [] generic_shutdown_super+0x16/0xd5 [] kill_anon_super+0x9/0x2f [] nfs_kill_super+0xc/0x14 [nfs] [] deactivate_super+0x52/0x65 [] sys_umount+0x1f0/0x218 [] release_sock+0xc/0x91 [] do_page_fault+0x20a/0x4b8 [] do_page_fault+0x274/0x4b8 [] sys_oldumount+0xb/0xe [] syscall_call+0x7/0xb ======================= Code: ed 8b 53 0c 8b 33 8b 4b 24 8d b8 40 01 00 00 8b 40 1c 85 d2 8b 00 74 03 8b 6a 20 57 50 56 51 55 53 68 24 1b 62 c0 e8 c5 5c fa ff <0f> 0b 67 02 18 1b 62 c0 83 c4 1c 8b 73 18 39 de 75 04 31 f6 eb EIP: [] shrink_dcache_for_umount_subtree+0x133/0x1c1 SS:ESP 0068:de121ee4 Thanks --Chakri ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ NFS maillist - NFS@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nfs