Hi all, I have OpenSUSE and the following rpms: iscsitarget-kmp-desktop-1.4.19_2.6.34.0_rc5_6-2.13.i586 iscsitarget-1.4.19-2.13.i586 kernel-desktop-2.6.34-6.1.i586 btrfsprogs-0.19-10.4.i586 here is the btrfs info: aopen:~ # btrfs-show failed to read /dev/sr0 Label: none uuid: 375c82ae-1edf-4ffe-ab23-94a6b032ce7d Total devices 4 FS bytes used 79.76GB devid 4 size 929.83GB used 43.01GB path /dev/sdf3 devid 1 size 929.83GB used 44.02GB path /dev/sdc3 devid 2 size 929.83GB used 44.00GB path /dev/sdd3 devid 3 size 929.83GB used 43.01GB path /dev/sde3 aopen:~ # btrfsck /dev/sdd3 failed to read /dev/sr0 found 85642956800 bytes used err is 0 total csum bytes: 83543828 total tree bytes: 94076928 total fs tree bytes: 253952 btree space waste bytes: 4535828 file data blocks allocated: 114860724224 referenced 93803511808 Btrfs Btrfs v0.19 aopen:~ # When i ran iscsi target on a (small 8GB) file in btrfs, I get this consistently: =================================================================================================== May 6 22:11:18 aopen kernel: [ 1201.903352] BUG: unable to handle kernel NULL pointer dereference at (null) May 6 22:11:18 aopen kernel: [ 1201.903369] IP: [<(null)>] (null) May 6 22:11:18 aopen kernel: [ 1201.903377] *pdpt = 000000003438e001 *pde = 0000000000000000 May 6 22:11:18 aopen kernel: [ 1201.903386] Oops: 0000 [#1] PREEMPT SMP May 6 22:11:18 aopen kernel: [ 1201.903394] last sysfs file: /sys/module/crc32c/initstate May 6 22:11:18 aopen kernel: [ 1201.903401] Modules linked in: iscsi_trgt btrfs zlib_deflate crc32c libcrc32c bluetooth rfkill jfs ip6t_LOG xt_tcpudp xt_pkttype ipt_LOG xt_limit snd_pcm_oss snd_mixer_oss snd_seq_midi snd_seq_midi_event snd_seq edd af_packet microcode ip6t_REJECT nf_conntrack_ipv6 ip6table_raw xt_NOTRACK ipt_REJECT xt_state iptable_raw iptable_filter ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 ip_tables ip6table_filter ip6_tables x_tables fuse loop raid10 dm_mod snd_intel8x0 snd_ac97_codec snd_mpu401 ac97_bus snd_mpu401_uart snd_rawmidi snd_pcm ppdev ohci1394 snd_timer iTCO_wdt iTCO_vendor_support ns558 snd_seq_device sr_mod pcspkr parport_pc snd_page_alloc e1000 i2c_i801 ieee1394 cdrom gameport sg snd soundcore parport button shpchp intel_agp pci_hotplug fan thermal processor thermal_sys ata_generic sata_sil [last unloaded: crc32c] May 6 22:11:18 aopen kernel: [ 1201.903541] May 6 22:11:18 aopen kernel: [ 1201.903547] Pid: 6304, comm: istiod1 Not tainted 2.6.34-rc5-6-desktop #1 AX4SG Max II/ May 6 22:11:18 aopen kernel: [ 1201.903555] EIP: 0060:[<00000000>] EFLAGS: 00010287 CPU: 0 May 6 22:11:18 aopen kernel: [ 1201.903564] EIP is at 0x0 May 6 22:11:18 aopen kernel: [ 1201.903569] EAX: f26a5e50 EBX: f84622e0 ECX: 00000001 EDX: f26a5ec0 May 6 22:11:18 aopen kernel: [ 1201.903575] ESI: f424ad00 EDI: f26a5e50 EBP: f26a5ec0 ESP: f26a5e44 May 6 22:11:18 aopen kernel: [ 1201.903581] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 May 6 22:11:18 aopen kernel: [ 1201.903589] Process istiod1 (pid: 6304, ti=f26a4000 task=f40de130 task.ti=f26a4000) May 6 22:11:18 aopen kernel: [ 1201.903596] Stack: May 6 22:11:18 aopen kernel: [ 1201.903600] c02fcd05 017a9e00 00000001 017aa000 0000000f 00000000 00000001 ffffffff May 6 22:11:18 aopen kernel: [ 1201.903614] <0> f424ad00 00000000 00000000 00000000 00000000 f40de130 00000000 00000000 May 6 22:11:18 aopen kernel: [ 1201.903629] <0> 017a9e00 00000001 00000117 5cf0894f 00000200 5cf0894f 00000200 5ca4ca59 May 6 22:11:18 aopen kernel: [ 1201.903647] Call Trace: May 6 22:11:18 aopen kernel: [ 1201.903651] Inexact backtrace: May 6 22:11:18 aopen kernel: [ 1201.903652] May 6 22:11:18 aopen kernel: [ 1201.903664] [<c02fcd05>] ? do_sync_write+0xb5/0xf0 May 6 22:11:18 aopen kernel: [ 1201.903675] [<c023b688>] ? dequeue_entity+0x38/0x1f0 May 6 22:11:18 aopen kernel: [ 1201.903687] [<f80dd71e>] ? fileio_make_request+0x11e/0x200 [iscsi_trgt] May 6 22:11:18 aopen kernel: [ 1201.903699] [<f80dd600>] ? fileio_make_request+0x0/0x200 [iscsi_trgt] May 6 22:11:18 aopen kernel: [ 1201.903708] [<f80d5278>] ? tio_write+0x18/0x50 [iscsi_trgt] May 6 22:11:18 aopen kernel: [ 1201.903719] [<f80e0857>] ? ua_pending+0x47/0xc0 [iscsi_trgt] May 6 22:11:18 aopen kernel: [ 1201.903730] [<f80de4e2>] ? build_write_response+0x32/0xd0 [iscsi_trgt] May 6 22:11:18 aopen kernel: [ 1201.903740] [<f80d694e>] ? send_scsi_rsp+0xe/0x60 [iscsi_trgt] May 6 22:11:18 aopen kernel: [ 1201.903750] [<f80de3af>] ? disk_execute_cmnd+0x22f/0x240 [iscsi_trgt] May 6 22:11:18 aopen kernel: [ 1201.903761] [<f80da459>] ? worker_thread+0xb9/0x1b0 [iscsi_trgt] May 6 22:11:18 aopen kernel: [ 1201.903769] [<c0239bd0>] ? default_wake_function+0x0/0x10 May 6 22:11:18 aopen kernel: [ 1201.903778] [<f80da3a0>] ? worker_thread+0x0/0x1b0 [iscsi_trgt] May 6 22:11:18 aopen kernel: [ 1201.903787] [<c025faa4>] ? kthread+0x74/0x80 May 6 22:11:18 aopen kernel: [ 1201.903793] [<c025fa30>] ? kthread+0x0/0x80 May 6 22:11:18 aopen kernel: [ 1201.903801] [<c0203466>] ? kernel_thread_helper+0x6/0x10 May 6 22:11:18 aopen kernel: [ 1201.903806] Code: Bad EIP value. May 6 22:11:18 aopen kernel: [ 1201.903815] EIP: [<00000000>] 0x0 SS:ESP 0068:f26a5e44 May 6 22:11:18 aopen kernel: [ 1201.903827] CR2: 0000000000000000 May 6 22:11:18 aopen kernel: [ 1201.903833] ---[ end trace ffc4d779884d0c3f ]--- ================================================================================= This happens half way into iscsi booting the OS (windows xp). -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
