From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756276AbYEBEc3 (ORCPT ); Fri, 2 May 2008 00:32:29 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750821AbYEBEcT (ORCPT ); Fri, 2 May 2008 00:32:19 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:56524 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750772AbYEBEcS (ORCPT ); Fri, 2 May 2008 00:32:18 -0400 Date: Thu, 1 May 2008 21:31:57 -0700 From: Andrew Morton To: "marco gaddoni" Cc: linux-kernel@vger.kernel.org, dm-devel@redhat.com Subject: Re: oops in linear_mergeable_bvec Message-Id: <20080501213157.e53535b7.akpm@linux-foundation.org> In-Reply-To: <3b2bc9d0804300352k76bdc2f1id7da040761bca427@mail.gmail.com> References: <3b2bc9d0804300352k76bdc2f1id7da040761bca427@mail.gmail.com> X-Mailer: Sylpheed 2.4.8 (GTK+ 2.12.5; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 30 Apr 2008 12:52:38 +0200 "marco gaddoni" wrote: > Hello, > > i have this repeatable oops in linear_mergeable_bvec > > the kernel is the Debian testing as of this morning, > > i am trying to rsync some data from this box to my pc. > the data is on a software raid 0 made of 2 ide disks > > the oops is triggered during the copy of a specific file, > allways the same. > > what can be the problem? > > arianna:~# cat /proc/mdstat > Personalities : [linear] > md2 : active linear hda1[0] hdb1[1] > 277321856 blocks 64k rounding > > unused devices: > > > BUG: unable to handle kernel NULL pointer dereference at virtual > address 00000010 > printing eip: c881609a *pde = 00000000 > Oops: 0000 [#1] SMP > Modules linked in: nf_nat_ftp nf_conntrack_ftp nfsd auth_rpcgss > exportfs nfs lockd nfs_acl sunrpc ipt_MASQUERADE ipt_LOG > ip6table_filter xt_state xt_NFQUEUE xt_hashlimit ip6_tables xt_tcpmss > xt_tcpudp ipt_addrtype xt_pkttype iptable_raw xt_CLASSIFY xt_CONNMARK > xt_MARK xt_comment ipt_REJECT xt_length xt_connmark ipt_owner > ipt_recent ipt_iprange xt_physdev xt_policy xt_multiport xt_conntrack > iptable_mangle iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack > iptable_filter ip_tables x_tables ipv6 deflate zlib_deflate > zlib_inflate twofish twofish_common camellia serpent blowfish > des_generic cbc ecb aes_i586 aes_generic geode_aes blkcipher xcbc > sha256_generic sha1_generic crypto_null af_key psmouse ide_generic > snd_intel8x0 snd_ac97_codec parport_pc ac97_bus i2c_i801 parport > snd_pcm i2c_core intel_rng snd_timer snd soundcore snd_page_alloc > intel_agp agpgart pcspkr shpchp pci_hotplug iTCO_wdt rtc evdev ext3 > jbd mbcache linear md_mod ide_cd cdrom ide_disk ata_generic libata > scsi_mod floppy e100 mii piix generic ide_core > > Pid: 5203, comm: rsync Not tainted (2.6.24-1-686 #1) > EIP: 0060:[] EFLAGS: 00010246 CPU: 0 > EIP is at linear_mergeable_bvec+0x9a/0x10b [linear] > EAX: c6595fc0 EBX: 00000000 ECX: 00000000 EDX: 0000002c > ESI: c78a63c0 EDI: 00000000 EBP: 00000000 ESP: c16d5c68 > DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 > Process rsync (pid: 5203, ti=c16d4000 task=c7b09250 task.ti=c16d4000) > Stack: 0b3ed648 00000002 0b3ed648 c6747360 167dac90 00000004 0b3ed648 00000002 > c16ce660 c0196e63 c6747360 c16ce660 c8816000 c642b8c8 c019718e c16ce660 > c1011720 00000004 c16d5da0 c0197a3e 00001000 00000000 000000ff 00001000 > Call Trace: > [] bio_alloc_bioset+0x9b/0xf3 > [] linear_mergeable_bvec+0x0/0x10b [linear] > [] __bio_add_page+0xf0/0x162 > [] bio_add_page+0x31/0x37 > [] do_mpage_readpage+0x516/0x5d2 > [] ext3_get_block+0x0/0xd0 [ext3] > [] radix_tree_insert+0x4f/0x15e > [] add_to_page_cache+0x67/0x80 > [] mpage_readpages+0x96/0xc3 > [] ext3_get_block+0x0/0xd0 [ext3] > [] __alloc_pages+0x59/0x2d5 > [] ext3_readpages+0x0/0x15 [ext3] > [] __do_page_cache_readahead+0x127/0x1a6 > [] ext3_get_block+0x0/0xd0 [ext3] > [] page_cache_sync_readahead+0x2a/0x2f > [] do_generic_mapping_read+0xdd/0x3b2 > [] file_read_actor+0x0/0xcc > [] generic_file_aio_read+0x16b/0x1a6 > [] file_read_actor+0x0/0xcc > [] do_sync_read+0xc7/0x10a > [] autoremove_wake_function+0x0/0x35 > [] do_page_fault+0x1f7/0x592 > [] do_sync_read+0x0/0x10a > [] vfs_read+0x9f/0x14b > [] sys_read+0x41/0x67 > [] sysenter_past_esp+0x6b/0xa1 > ======================= > Code: 24 04 89 d1 31 d2 85 c9 89 44 24 08 74 08 89 c8 31 d2 f7 f3 89 > c1 8b 44 24 08 f7 f3 89 ca 89 c2 8b 46 04 8b 1c 90 eb 03 83 c3 14 <8b> > 53 10 8b 43 0c 8b 73 04 8b 7b 08 89 d1 89 54 24 24 89 c2 01 > EIP: [] linear_mergeable_bvec+0x9a/0x10b [linear] SS:ESP 0068:c16d5c68 (cc dm-devel) (which often has no effect) I wonder which kernel.org kernel was used to generate 2.6.24-1-686.