From mboxrd@z Thu Jan 1 00:00:00 1970 From: Skylar Burtenshaw Subject: Re: Can't mount, power failure - recoverable? Date: Sun, 18 Mar 2012 18:49:13 +0000 (UTC) Message-ID: References: <20120318151615.GE3976@shiny> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii To: linux-btrfs@vger.kernel.org Return-path: List-ID: > Looks like some of the bottom of this trace is missing.> That's because I'm amazing, Chris. I don't even know how that happened.. Trying again: BUG: unable to handle kernel NULL pointer dereference at 00000000000$ IP: [] btrfs_put_block_group+0x11/0x70 [btrfs] PGD 78e80067 PUD 79588067 PMD 0 Oops: 0002 [#1] SMP CPU 0 Modules linked in: aoe radeon ttm nfsd drm_kms_helper drm nfs lockd k8temp fscache auth_rpcgss nfs_acl lp i2c_algo_bit edac_core edac_mce_amd i2c_nforce2 psmouse asus_atk0110 serio_raw parport sunrpc usbhid hid 3w_9xxx floppy sata_promise pata_sil680 sata_nv forcedeth pata_amd sky2 sata_sil24 nbd btrfs zlib_deflate libcrc32c Pid: 1764, comm: mount Not tainted 3.2.0-030200-generic #201201042035 System manufacturer System Product Name/A8N32-SLI-Deluxe RIP: 0010:[] [] btrfs_put_block_group+0x11/0x70 [btrfs] RSP: 0018:ffff880078e79568 EFLAGS: 00010292 RAX: ffff880072e35000 RBX: 0000000000000000 RCX: 0000160000000000 RDX: 000000000004136e RSI: 0000000040000000 RDI: 0000000000000000 RBP: ffff880078e79578 R08: 0000000000000000 R09: 0000000000000002 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88007b3ca000 R13: 0000000000000000 R14: ffff880077daa048 R15: ffff880000000000 FS: 00007f95889927e0(0000) GS:ffff88007fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00000000000000d0 CR3: 0000000078c90000 CR4: 00000000000006f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process mount (pid: 1764, threadinfo ffff880078e78000, task ffff88007ab90000) Stack: ffff880078e79578 ffff8800729e9320 ffff880078e795d8 ffffffffa0024bdf ffff880000000002 0000000000000000 ffff880077ff8190 000000000004136f ffff880078e795d8 ffff88007b3ca000 ffff880072ba6460 ffff8800729e9320 Call Trace: [] btrfs_free_tree_block+0xef/0x1a0 [btrfs] [] __btrfs_cow_block+0x2ca/0x4b0 [btrfs] [] btrfs_cow_block+0xee/0x200 [btrfs] [] btrfs_search_slot+0x328/0x730 [btrfs] [] lookup_inline_extent_backref+0xbc/0x400 [btrfs] [] ? kmem_cache_alloc+0xcd/0x120 [] __btrfs_free_extent+0xd6/0x700 [btrfs] [] ? lock_timer_base+0x3c/0x70 [] ? bdi_wakeup_thread_delayed+0x38/0x40 [] run_delayed_tree_ref+0x15a/0x160 [btrfs] [] ? memcmp_extent_buffer+0x1de/0x230 [btrfs] [] run_one_delayed_ref+0x9b/0xc0 [btrfs] [] run_clustered_refs+0xc0/0x220 [btrfs] [] btrfs_run_delayed_refs+0xca/0x220 [btrfs] [] ? __wake_up+0x53/0x70 [] commit_cowonly_roots+0x86/0x1e0 [btrfs] [] btrfs_commit_transaction+0x42f/0x900 [btrfs] [] ? join_transaction+0x24d/0x280 [btrfs] [] ? wake_up_bit+0x40/0x40 [] btrfs_commit_super+0x88/0xd0 [btrfs] [] close_ctree+0x340/0x3b0 [btrfs] [] ? iput+0x3e/0x50 [] ? btrfs_iget+0xf4/0x110 [btrfs] [] btrfs_fill_super+0x136/0x150 [btrfs] [] ? strlcpy+0x4a/0x60 [] btrfs_mount+0x335/0x370 [btrfs] [] mount_fs+0x43/0x1a0 [] vfs_kern_mount+0x63/0xd0 [] do_kern_mount+0x52/0x110 [] ? security_capable+0x2a/0x30 [] do_mount+0x1ed/0x240 [] sys_mount+0x90/0xe0 [] system_call_fastpath+0x16/0x1b Code: 62 04 e1 eb cd be 95 00 00 00 48 c7 c7 48 fb 08 a0 e8 14 62 04 e1 eb cb 66 90 55 48 89 e5 53 48 83 ec 08 66 66 66 66 90 48 89 fb ff 8f d0 00 00 00 0f 94 c0 84 c0 74 22 48 83 7f 48 00 75 22 RIP [] btrfs_put_block_group+0x11/0x70 [btrfs] RSP CR2: 00000000000000d0 ---[ end trace dbfc4032ba5e601f ]---