Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932326AbWE3Q5J (ORCPT ); Tue, 30 May 2006 12:57:09 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932330AbWE3Q5I (ORCPT ); Tue, 30 May 2006 12:57:08 -0400 Received: from mx1.redhat.com ([66.187.233.31]:53481 "EHLO mx1.redhat.com") by vger.kernel.org with ESMTP id S932326AbWE3Q5H (ORCPT ); Tue, 30 May 2006 12:57:07 -0400 Date: Tue, 30 May 2006 12:56:49 -0400 From: Dave Jones To: Jens Axboe Cc: Andrew Morton , linux-kernel@vger.kernel.org Subject: Re: .17rc5 cfq slab corruption. Message-ID: <20060530165649.GB17218@redhat.com> Mail-Followup-To: Dave Jones , Jens Axboe , Andrew Morton , linux-kernel@vger.kernel.org References: <20060526213915.GB7585@redhat.com> <20060526170013.67391a2b.akpm@osdl.org> <20060527070724.GB24988@suse.de> <20060527133122.GB3086@redhat.com> <20060530131728.GX4199@suse.de> <20060530161232.GA17218@redhat.com> <20060530164917.GB4199@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060530164917.GB4199@suse.de> User-Agent: Mutt/1.4.2.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5208 Lines: 65 On Tue, May 30, 2006 at 06:49:18PM +0200, Jens Axboe wrote: > > List corruption. next->prev should be f74a5e2c, but was ea7ed31c > > Pointing at cfq_set_request. > > I think I'm missing a piece of this - what list was corrupted, in what > function did it trigger? If you look at the attachment in the bugzilla url in my previous msg, you'll see this: ay 30 05:31:33 mandril kernel: List corruption. next->prev should be f74a5e2c, but was ea7ed31c May 30 05:31:33 mandril kernel: ------------[ cut here ]------------ May 30 05:31:33 mandril kernel: kernel BUG at include/linux/list.h:58! May 30 05:31:33 mandril kernel: invalid opcode: 0000 [#1] May 30 05:31:33 mandril kernel: SMP May 30 05:31:33 mandril kernel: last sysfs file: /devices/pci0000:00/0000:00:1f.3/i2c-0/0-002e/pwm3 May 30 05:31:33 mandril kernel: Modules linked in: iptable_filter ipt_DSCP iptable_mangle ip_tables x_tables eeprom lm85 hwmon_vid hwmon i2c_isa ipv6 nls_utf8 loop dm_mirror dm_mod video button battery ac lp parport_pc parport ehci_hcd uhci_hcd floppy snd_intel8x0 snd_ac97_codec snd_ac97_bus sg snd_seq_dummy matroxfb_base snd_seq_oss snd_seq_midi_event matroxfb_DAC1064 snd_seq matroxfb_accel matroxfb_Ti3026 3w_9xxx matroxfb_g450 snd_seq_device g450_pll matroxfb_misc snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd e1000 soundcore snd_page_alloc i2c_i801 i2c_core ext3 jbd 3w_xxxx ata_piix libata sd_mod scsi_mod May 30 05:31:33 mandril kernel: CPU: 0 May 30 05:31:33 mandril kernel: EIP: 0060:[] Not tainted VLI May 30 05:31:33 mandril kernel: EFLAGS: 00210292 (2.6.16-1.2227_FC6 #1) May 30 05:31:33 mandril kernel: EIP is at cfq_set_request+0x202/0x3ff May 30 05:31:33 mandril kernel: eax: 00000044 ebx: f605af58 ecx: c06c77d0 edx: 00200282 May 30 05:31:33 mandril kernel: esi: f4c31d58 edi: f74a5e2c ebp: f4c31da8 esp: c57c1abc May 30 05:31:33 mandril kernel: ds: 007b es: 007b ss: 0068 May 30 05:31:33 mandril kernel: Process httpd (pid: 30323, threadinfo=c57c1000 task=f1bf4550) May 30 05:31:33 mandril kernel: Stack: c0624ac7 f74a5e2c ea7ed31c d0c71c34 f74cb25c f74a5d04 f1bf4550 00000000 May 30 05:31:33 mandril kernel: 00007673 f3822398 00000000 c04e310e f74cb25c d0c71c34 f74cb26c c04d7342 May 30 05:31:33 mandril kernel: 00000010 f74cb25c 00000000 c04d9da8 00000010 d954b84c c046ca2b 0142781d May 30 05:31:33 mandril kernel: Call Trace: May 30 05:31:33 mandril kernel: cfq_set_request+0x0/0x3ff elv_set_request+0x1e/0x2d May 30 05:31:33 mandril kernel: get_request+0x164/0x31d __find_get_block+0x161/0x16b May 30 05:31:33 mandril kernel: get_request_wait+0x1b/0x15e __getblk+0x39/0x257 May 30 05:31:33 mandril kernel: __make_request+0x322/0x3cb cache_alloc_debugcheck_after+0x134/0x13e May 30 05:31:33 mandril kernel: ext3_get_blocks_handle+0x921/0x954 [ext3] generic_make_request+0x2b7/0x2c7 May 30 05:31:33 mandril kernel: __find_get_block_slow+0x11c/0x128 cache_alloc_debugcheck_after+0x134/0x13e May 30 05:31:33 mandril kernel: __find_get_block+0x161/0x16b cache_alloc_debugcheck_after+0xcd/0x13e May 30 05:31:33 mandril kernel: mempool_alloc+0x37/0xd3 submit_bio+0xb7/0xbe May 30 05:31:33 mandril kernel: mempool_alloc+0x37/0xd3 ext3_getblk+0x11b/0x2a6 [ext3] May 30 05:31:33 mandril kernel: bio_alloc_bioset+0x9b/0xf3 submit_bh+0xe4/0x102 May 30 05:31:33 mandril kernel: ll_rw_block+0x8d/0xa9 ext3_bread+0x39/0x83 [ext3] May 30 05:31:33 mandril kernel: ext3_find_entry+0x174/0x58d [ext3] do_IRQ+0x79/0x84 May 30 05:31:33 mandril kernel: common_interrupt+0x1a/0x20 debug_mutex_add_waiter+0x97/0xa9 May 30 05:31:33 mandril kernel: d_alloc+0x4b/0x206 ext3_lookup+0x21/0x77 [ext3] May 30 05:31:33 mandril kernel: do_lookup+0xb2/0x14d __link_path_walk+0x894/0xd31 May 30 05:31:33 mandril kernel: link_path_walk+0x49/0xbd autoremove_wake_function+0x0/0x35 May 30 05:31:33 mandril kernel: do_path_lookup+0x1e3/0x251 getname+0x91/0x98 May 30 05:31:33 mandril kernel: __user_walk_fd+0x2f/0x40 vfs_stat_fd+0x19/0x40 May 30 05:31:33 mandril kernel: autoremove_wake_function+0x0/0x35 sys_stat64+0xf/0x23 May 30 05:31:33 mandril kernel: do_IRQ+0x79/0x84 syscall_call+0x7/0xb May 30 05:31:33 mandril kernel: Code: 8b 7c 24 14 8b 98 28 01 00 00 81 c7 28 01 00 00 8b 43 04 39 f8 74 46 89 7c 24 04 89 44 24 08 c7 04 24 c7 4a 62 c0 e8 44 1e f4 ff <0f> 0b 3a 00 b2 4a 62 c0 8b 54 24 14 8b 82 28 01 00 00 39 d8 74 Not sure which list is being pointed at. I'll see if I can decipher more after lunch. Dave -- http://www.codemonkey.org.uk - 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/