From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S271478AbTGQOwh (ORCPT ); Thu, 17 Jul 2003 10:52:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S271476AbTGQOwh (ORCPT ); Thu, 17 Jul 2003 10:52:37 -0400 Received: from franka.aracnet.com ([216.99.193.44]:55962 "EHLO franka.aracnet.com") by vger.kernel.org with ESMTP id S271478AbTGQOwU (ORCPT ); Thu, 17 Jul 2003 10:52:20 -0400 Date: Thu, 17 Jul 2003 08:06:56 -0700 From: "Martin J. Bligh" To: linux-kernel Subject: [Bug 934] New: NFS client getting repeated kernel bugs with mm/slab.c:1696 Message-ID: <16970000.1058454416@[10.10.2.4]> X-Mailer: Mulberry/2.2.1 (Linux/x86) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org http://bugme.osdl.org/show_bug.cgi?id=934 Summary: NFS client getting repeated kernel bugs with mm/slab.c:1696 Kernel Version: 2.6.0-test1 Status: NEW Severity: normal Owner: trond.myklebust@fys.uio.no Submitter: robbiew@us.ibm.com Distribution:SuSE 8.0 Hardware Environment: # cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 8 model name : Pentium III (Coppermine) stepping : 10 cpu MHz : 864.111 cache size : 256 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse bogomips : 1708.03 256 Mb of RAM 512 Mb of Swap Space Software Environment: Gnu C 2.95.3 Gnu make 3.79.1 util-linux 2.11z mount 2.11z module-init-tools 2.4.12 e2fsprogs 1.26 jfsutils 1.0.15 xfsprogs 2.0.0 quota-tools 3.03. PPP 2.4.1 isdn4k-utils 3.1pre4 Linux C Library x 1 root root 1394238 Mar 23 2002 /lib/libc.so.6 Dynamic linker (ldd) 2.2.5 Procps 3.1.5 Net-tools 1.60 Kbd 1.06 Sh-utils 2.0 nfs-utils 1.0.4 No Modules Loaded Problem Description: While performing the test scenario described at http://ltp.sf.net, I receive the following kernel BUG over 100 times on the client. I realize if I turn off Kernel Debugging I won't receive these messages. However, I believe these reported BUGS are causing the errors I get when I attempt to remove the created files and filesystems over NFS. Here is the bug: ========================================= kernel BUG at mm/slab.c:1696! invalid operand: 0000 [#101] CPU: 0 EIP: 0060:[] Not tainted EFLAGS: 00010016 EIP is at cache_alloc_refill+0x114/0x2d0 eax: 002158c3 ebx: 00000006 ecx: cfdacf50 edx: cfdacf68 esi: 00000002 edi: 00000010 ebp: ca227ce8 esp: ca227cb4 ds: 007b es: 007b ss: 0068 Process fsstress (pid: 1736, threadinfo=ca226000 task=cab559c0) Stack: 00000000 cfdacf3c 00000282 ca227cd0 00000006 cf402f20 ca227e8c 00000000 cfdacf48 cfdacf50 00200200 cfdacf68 cfda8948 ca227d0c c0131224 cfdacf3c 000000d0 00000000 cf772124 cfe8da30 ca227d90 00000000 ca227d1c c019729f Call Trace: [] kmem_cache_alloc+0x4c/0x118 [] nfs_alloc_inode+0x13/0x3c [] alloc_inode+0x16/0x148 [] get_new_inode+0x12/0xc4 [] iget5_locked+0x7d/0x88 [] nfs_find_actor+0x0/0xb0 [] nfs_init_locked+0x0/0x3c [] __nfs_fhget+0x5f/0x328 [] nfs_find_actor+0x0/0xb0 [] nfs_init_locked+0x0/0x3c [] nfs_fhget+0x43/0x4c [] nfs_instantiate+0x57/0xac [] nfs_mkdir+0x9f/0xe0 [] d_alloc+0x19/0x1c0 [] nfs_rmdir+0x2f/0x70 [] permission+0x26/0x3c [] vfs_mkdir+0x71/0x9c [] sys_mkdir+0x8d/0xd4 [] syscall_call+0x7/0xb Code: 0f 0b a0 06 67 8f 39 c0 8b 55 f8 8b 04 82 83 f8 ff 75 d5 8b ========================================= I attached a dump of fs/nfs/inode.o and mm/slab.o also. Steps to reproduce: Execute to the testplan described at http://ltp.sf.net