Hello again! > [ 637.345296] BUG: unable to handle kernel NULL pointer dereference at > 0000001c > [ 637.345306] IP: [<c1142c2f>] btrfs_print_leaf+0xd/0x886
I tried to fix this by returning from this function when "l" is null like this guy did: http://www.mail-archive.com/linux-btrfs@vger.kernel.org/msg10697.html But now I get: [ 397.416733] parent transid verify failed on 641086169088 wanted 43863 found 43873 [ 397.417015] parent transid verify failed on 641086169088 wanted 43863 found 43873 [ 397.417289] parent transid verify failed on 641086169088 wanted 43863 found 43873 [ 397.424886] parent transid verify failed on 641086169088 wanted 43863 found 43873 [ 397.424895] parent transid verify failed on 641086169088 wanted 43863 found 43873 [ 397.424900] ------------[ cut here ]------------ [ 397.424910] WARNING: at fs/btrfs/extent-tree.c:4462 __btrfs_free_extent+0x3a6/0x7e3() [ 397.424913] Hardware name: [ 397.424915] Modules linked in: af_packet vmnet vmblock vsock vmci vmmon lm90 it87 hwmon_vid hwmon fuse bnep rfcomm snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss reiserfs zram(C) mperf loop emu10k1_gp sidewinder joydev nfs lockd auth_rpcgss nfs_acl sunrpc ipv6 tcp_cubic nvidia(P) snd_usb_audio snd_usbmidi_lib usb_storage gspca_sonixj usbhid sr_mod gspca_main hid cdrom videodev uas sg 8250_pnp btusb firewire_ohci i82875p_edac ne2k_pci 8390 bluetooth analog e1000 firewire_core ns558 gameport 8250 serial_core parport_pc i2c_i801 pcspkr snd_mpu401 floppy edac_core crc_itu_t crc16 evdev fan intel_agp processor button thermal parport snd_mpu401_uart intel_gtt agpgart unix [last unloaded: microcode] [ 397.424997] Pid: 3873, comm: rm Tainted: P A C 3.0.6-gentoo #2 [ 397.425000] Call Trace: [ 397.425008] [<c1028cec>] ? warn_slowpath_common+0x7c/0x8f [ 397.425012] [<c113b7f0>] ? __btrfs_free_extent+0x3a6/0x7e3 [ 397.425016] [<c113b7f0>] ? __btrfs_free_extent+0x3a6/0x7e3 [ 397.425021] [<c1028d1a>] ? warn_slowpath_null+0x1b/0x1f [ 397.425025] [<c113b7f0>] ? __btrfs_free_extent+0x3a6/0x7e3 [ 397.425031] [<c1096332>] ? kfree+0x13/0x90 [ 397.425035] [<c11857d0>] ? btrfs_delayed_ref_lock+0x2c/0x74 [ 397.425040] [<c113e805>] ? run_clustered_refs+0x826/0x869 [ 397.425046] [<c113681b>] ? btrfs_del_items+0x2f2/0x2fc [ 397.425050] [<c113e909>] ? btrfs_run_delayed_refs+0xc1/0x144 [ 397.425055] [<c114d8a8>] ? __btrfs_end_transaction+0x70/0x19b [ 397.425059] [<c114da29>] ? btrfs_end_transaction+0x11/0x15 [ 397.425064] [<c115756d>] ? btrfs_evict_inode+0x1ce/0x1e5 [ 397.425068] [<c10ac392>] ? evict+0x52/0xe1 [ 397.425073] [<c10a580c>] ? do_unlinkat+0xca/0x10a [ 397.425078] [<c10c0e00>] ? fsnotify_find_inode_mark+0x17/0x1d [ 397.425083] [<c109aa57>] ? filp_close+0x56/0x5f [ 397.425089] [<c1352093>] ? sysenter_do_call+0x12/0x22 [ 397.425092] ---[ end trace b71c480eb63758b5 ]--- [ 397.425096] btrfs unable to find ref byte nr 1271613026304 parent 0 root 256 owner 445125 offset 2097152 [ 397.425108] BUG: unable to handle kernel NULL pointer dereference at 0000000c [ 397.425114] IP: [<c1164530>] btrfs_item_size+0xe/0xb0 [ 397.425122] *pde = 00000000 [ 397.425125] Oops: 0000 [#1] SMP [ 397.425129] Modules linked in: af_packet vmnet vmblock vsock vmci vmmon lm90 it87 hwmon_vid hwmon fuse bnep rfcomm snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss reiserfs zram(C) mperf loop emu10k1_gp sidewinder joydev nfs lockd auth_rpcgss nfs_acl sunrpc ipv6 tcp_cubic nvidia(P) snd_usb_audio snd_usbmidi_lib usb_storage gspca_sonixj usbhid sr_mod gspca_main hid cdrom videodev uas sg 8250_pnp btusb firewire_ohci i82875p_edac ne2k_pci 8390 bluetooth analog e1000 firewire_core ns558 gameport 8250 serial_core parport_pc i2c_i801 pcspkr snd_mpu401 floppy edac_core crc_itu_t crc16 evdev fan intel_agp processor button thermal parport snd_mpu401_uart intel_gtt agpgart unix [last unloaded: microcode] [ 397.425200] [ 397.425204] Pid: 3873, comm: rm Tainted: P AWC 3.0.6-gentoo #2 /8KNXP [ 397.425210] EIP: 0060:[<c1164530>] EFLAGS: 00010292 CPU: 1 [ 397.425214] EIP is at btrfs_item_size+0xe/0xb0 [ 397.425217] EAX: 00000000 EBX: 00000000 ECX: 00000000 EDX: 00000065 [ 397.425221] ESI: 00000065 EDI: f4c3dd90 EBP: 0000007a ESP: f4a75d1c [ 397.425224] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [ 397.425228] Process rm (pid: 3873, ti=f4a74000 task=f4b06000 task.ti=f4a74000) [ 397.425230] Stack: [ 397.425232] b71c480e c1028cf1 c13eb382 c1554038 0000116e c113b7f0 a88f56d4 00000000 [ 397.425241] 00000000 f4c3dd90 00000000 00000000 f4c3dd90 fffffffb c113b883 c13fcf0d [ 397.425250] 120af000 00000128 00000000 00000000 00000100 00000000 0006cac5 00000000 [ 397.425259] Call Trace: [ 397.425264] [<c1028cf1>] ? warn_slowpath_common+0x81/0x8f [ 397.425269] [<c113b7f0>] ? __btrfs_free_extent+0x3a6/0x7e3 [ 397.425273] [<c113b883>] ? __btrfs_free_extent+0x439/0x7e3 [ 397.425278] [<c1096332>] ? kfree+0x13/0x90 [ 397.425282] [<c11857d0>] ? btrfs_delayed_ref_lock+0x2c/0x74 [ 397.425286] [<c113e805>] ? run_clustered_refs+0x826/0x869 [ 397.425292] [<c113681b>] ? btrfs_del_items+0x2f2/0x2fc [ 397.425297] [<c113e909>] ? btrfs_run_delayed_refs+0xc1/0x144 [ 397.425301] [<c114d8a8>] ? __btrfs_end_transaction+0x70/0x19b [ 397.425306] [<c114da29>] ? btrfs_end_transaction+0x11/0x15 [ 397.425310] [<c115756d>] ? btrfs_evict_inode+0x1ce/0x1e5 [ 397.425314] [<c10ac392>] ? evict+0x52/0xe1 [ 397.425318] [<c10a580c>] ? do_unlinkat+0xca/0x10a [ 397.425322] [<c10c0e00>] ? fsnotify_find_inode_mark+0x17/0x1d [ 397.425326] [<c109aa57>] ? filp_close+0x56/0x5f [ 397.425331] [<c1352093>] ? sysenter_do_call+0x12/0x22 [ 397.425333] Code: 11 85 ed 75 10 b9 04 00 00 00 8b 54 24 28 89 d8 e8 11 9b 00 00 83 c4 2c 5b 5e 5f 5d c3 55 57 56 53 83 ec 28 89 c3 89 d6 8d 6a 15 <8b> 78 0c 85 ff 74 1e 8b 40 14 39 c5 72 17 8d 4a 19 8b 53 18 01 [ 397.425382] EIP: [<c1164530>] btrfs_item_size+0xe/0xb0 SS:ESP 0068:f4a75d1c [ 397.425388] CR2: 000000000000000c [ 397.425392] ---[ end trace b71c480eb63758b6 ]--- This makes me think the problem is buried much deeper because path->nodes[0] is null. :-( Please advice. Greetings, Kai -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
