Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753229AbcJKPXH (ORCPT ); Tue, 11 Oct 2016 11:23:07 -0400 Received: from arcturus.aphlor.org ([188.246.204.175]:48578 "EHLO arcturus.aphlor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753014AbcJKPXF (ORCPT ); Tue, 11 Oct 2016 11:23:05 -0400 Date: Tue, 11 Oct 2016 10:45:08 -0400 From: Dave Jones To: Al Viro Cc: Chris Mason , Josef Bacik , David Sterba , linux-btrfs@vger.kernel.org, Linux Kernel Subject: btrfs bio linked list corruption. Message-ID: <20161011144507.okg6baqvodn2m2lh@codemonkey.org.uk> Mail-Followup-To: Dave Jones , Al Viro , Chris Mason , Josef Bacik , David Sterba , linux-btrfs@vger.kernel.org, Linux Kernel MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: NeoMutt/20160916 (1.7.0) X-Spam-Flag: skipped (authorised relay user) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2604 Lines: 47 This is from Linus' current tree, with Al's iovec fixups on top. ------------[ cut here ]------------ WARNING: CPU: 1 PID: 3673 at lib/list_debug.c:33 __list_add+0x89/0xb0 list_add corruption. prev->next should be next (ffffe8ffff806648), but was ffffc9000067fcd8. (prev=ffff880503878b80). CPU: 1 PID: 3673 Comm: trinity-c0 Not tainted 4.8.0-think+ #13 ffffc90000d87458 ffffffff8d32007c ffffc90000d874a8 0000000000000000 ffffc90000d87498 ffffffff8d07a6c1 0000002100000246 ffff88050388e880 ffff880503878b80 ffffe8ffff806648 ffffe8ffffc06600 ffff880502808008 Call Trace: [] dump_stack+0x4f/0x73 [] __warn+0xc1/0xe0 [] warn_slowpath_fmt+0x5a/0x80 [] __list_add+0x89/0xb0 [] blk_sq_make_request+0x2f8/0x350 [] ? generic_make_request+0xec/0x240 [] generic_make_request+0xf9/0x240 [] submit_bio+0x78/0x150 [] ? __percpu_counter_add+0x85/0xb0 [] btrfs_map_bio+0x19e/0x330 [btrfs] [] btree_submit_bio_hook+0xfa/0x110 [btrfs] [] submit_one_bio+0x65/0xa0 [btrfs] [] read_extent_buffer_pages+0x2f0/0x3d0 [btrfs] [] ? free_root_pointers+0x60/0x60 [btrfs] [] btree_read_extent_buffer_pages.constprop.55+0xa8/0x110 [btrfs] [] read_tree_block+0x2d/0x50 [btrfs] [] read_block_for_search.isra.33+0x134/0x330 [btrfs] [] ? _raw_write_unlock+0x2c/0x50 [] ? unlock_up+0x16c/0x1a0 [btrfs] [] btrfs_search_slot+0x450/0xa40 [btrfs] [] btrfs_del_csums+0xe3/0x2e0 [btrfs] [] __btrfs_free_extent.isra.82+0x32d/0xc90 [btrfs] [] __btrfs_run_delayed_refs+0x4d3/0x1010 [btrfs] [] ? debug_smp_processor_id+0x17/0x20 [] ? get_lock_stats+0x19/0x50 [] btrfs_run_delayed_refs+0x9c/0x2d0 [btrfs] [] btrfs_truncate_inode_items+0x888/0xda0 [btrfs] [] btrfs_truncate+0xe5/0x2b0 [btrfs] [] btrfs_setattr+0x249/0x360 [btrfs] [] notify_change+0x252/0x440 [] do_truncate+0x6e/0xc0 [] do_sys_ftruncate.constprop.19+0x10c/0x170 [] ? __this_cpu_preempt_check+0x13/0x20 [] SyS_ftruncate+0x9/0x10 [] do_syscall_64+0x5c/0x170 [] entry_SYSCALL64_slow_path+0x25/0x25 --[ end trace 906673a2f703b373 ]---