bigus:~ # fsck.reiserfs --rebuild-sb /dev/md0
reiserfsck 3.6.18 (2003 www.namesys.com)

*************************************************************
** If you are using the latest reiserfsprogs and  it fails **
** please  email bug reports to reiserfs-list@namesys.com, **
** providing  as  much  information  as  possible --  your **
** hardware,  kernel,  patches,  settings,  all reiserfsck **
** messages  (including version),  the reiserfsck logfile, **
** check  the  syslog file  for  any  related information. **
** If you would like advice on using this program, support **
** is available  for $25 at  www.namesys.com/support.html. **
*************************************************************

Will check superblock and rebuild it if needed
Will put log info to 'stdout'

Do you want to run this program?[N/Yes] (note need to type Yes if you do):Yes
bread: Cannot read the block (2): (Invalid argument).
reiserfs_open: bread failed reading block 2
bread: Cannot read the block (16): (Invalid argument).
reiserfs_open: bread failed reading block 16

reiserfs_open: the reiserfs superblock cannot be found on /dev/md0.

what the version of ReiserFS do you use[1-4]
        (1)   3.6.x
        (2) >=3.5.9 (introduced in the middle of 1999) (if you use linux 2.2, choose this one)
        (3) < 3.5.9 converted to new format (don't choose if unsure)
        (4) < 3.5.9 (this is very old format, don't choose if unsure)
        (X)   exit
1

Enter block size [4096]:

reiserfs_create: can not create that small (0 blocks) filesystem

Oct 21 19:43:42 bigus init: Switching to runlevel: 1
Oct 21 19:43:43 bigus xinetd[6634]: Exiting...
Oct 21 19:43:45 bigus kernel: lockd: host still in use after nlmsvc_free_host_resources!------------[ cut here ]------------
Oct 21 19:43:45 bigus kernel: kernel BUG at fs/lockd/host.c:275!
Oct 21 19:43:45 bigus kernel: invalid operand: 0000 [#1]
Oct 21 19:43:45 bigus kernel: SMP
Oct 21 19:43:45 bigus kernel: Modules linked in: nls_utf8 ves1x93 ves1820 tda1004x stv0299 sp887x nxt6000 mt352 mt312 grundig_29504_491 grundig_29504_401 dst dib3000mb cx24110 cx22702 at76c651 alps_tdmb7 alps_tdlb7 dvb_bt8xx bt878 dvb_ttpci saa7146_vv saa7146 v4l1_compat ttpci_eeprom dvb_core tuner bttv video_buf firmware_class i2c_algo_bit v4l2_common btcx_risc i2c_core videodev nvidia usbserial parport_pc lp parport nfsd exportfs nvram speedstep_lib freq_table thermal processor fan button battery ac ipv6 snd_pcm_oss snd_mixer_oss snd_seq_midi snd_seq_midi_event snd_seq snd_ens1371 snd_rawmidi snd_seq_device snd_ac97_codec snd_pcm snd_timer snd soundcore snd_page_alloc gameport edd joydev sg st sr_mod ide_cd cdrom sk98lin ehci_hcd uhci_hcd ohci1394 ieee1394 intel_agp agpgart evdev raid5 xor dm_mod usbcore reiserfs sata_sil ata_piix libata sd_mod scsi_mod
Oct 21 19:43:45 bigus kernel: CPU:    0
Oct 21 19:43:45 bigus kernel: EIP:    0060:[<c01b6dc2>]    Tainted:  P  U VLI
Oct 21 19:43:45 bigus kernel: EFLAGS: 00010286   (2.6.8-24-smp )
Oct 21 19:43:45 bigus kernel: EIP is at nlm_release_host+0x23/0x42
Oct 21 19:43:45 bigus kernel: eax: ffffffff   ebx: c3790d80   ecx: c0374c90   edx: 00000286
Oct 21 19:43:45 bigus kernel: esi: d1b28000   edi: dff96600   ebp: dfdac940   esp: d1b29fb4
Oct 21 19:43:45 bigus kernel: ds: 007b   es: 007b   ss: 0068
Oct 21 19:43:45 bigus kernel: Process lockd (pid: 6447, threadinfo=d1b28000 task=df5f4330)
Oct 21 19:43:45 bigus kernel: Stack: c011f72e c0334868 c3790d80 c01b9edc c0334868 7fffffff c01b74d9 c0346816
Oct 21 19:43:45 bigus kernel:        00000000 fffe2d2a 00000000 c01b728b 00000000 00000000 00000000 c0104265
Oct 21 19:43:45 bigus kernel:        dff96600 00000000 00000000
Oct 21 19:43:45 bigus kernel: Call Trace:
Oct 21 19:43:45 bigus kernel:  [<c011f72e>] printk+0x17/0x1b
Oct 21 19:43:45 bigus kernel:  [<c01b9edc>] nlmsvc_invalidate_all+0x3a/0x4a
Oct 21 19:43:45 bigus kernel:  [<c01b74d9>] lockd+0x24e/0x274
Oct 21 19:43:45 bigus kernel:  [<c01b728b>] lockd+0x0/0x274
Oct 21 19:43:45 bigus kernel:  [<c0104265>] kernel_thread_helper+0x5/0xb
Oct 21 19:43:45 bigus kernel: Code: 04 e8 7a 89 f6 ff eb c3 53 89 c3 83 ec 08 85 c0 74 14 80 3d 7c 0d 48 c0 00 78 1a f0 ff 4b 50 8b 43 50 85 c0 78 05 83 c4 08 5b c3 <0f> 0b 13 01 64 f6 32 c0 eb f1 8d 40 18 c7 04 24 74 f6 32 c0 89
Oct 21 19:43:46 bigus kernel:  <4>lockd_down: lockd failed to exit, clearing pid
Oct 21 19:43:46 bigus kernel: nfsd: last server has exited
Oct 21 19:43:46 bigus kernel: nfsd: unexporting all filesystems
Oct 21 19:43:46 bigus rpc.mountd: Caught signal 15, un-registering and exiting.

Oct 26 09:55:45 bigus kernel: md: Autodetecting RAID arrays.
Oct 26 09:55:45 bigus kernel: md: autorun ...
Oct 26 09:55:45 bigus kernel: md: considering sdd1 ...
Oct 26 09:55:45 bigus kernel: md:  adding sdd1 ...
Oct 26 09:55:45 bigus kernel: md:  adding sdc1 ...
Oct 26 09:55:45 bigus kernel: md:  adding sdb1 ...
Oct 26 09:55:45 bigus kernel: md: created md0
Oct 26 09:55:45 bigus kernel: md: bind<sdb1>
Oct 26 09:55:45 bigus kernel: md: bind<sdc1>
Oct 26 09:55:45 bigus kernel: md: bind<sdd1>
Oct 26 09:55:45 bigus kernel: md: running: <sdd1><sdc1><sdb1>
Oct 26 09:55:45 bigus kernel: raid5: device sdd1 operational as raid disk 2
Oct 26 09:55:45 bigus kernel: raid5: device sdc1 operational as raid disk 1
Oct 26 09:55:45 bigus kernel: raid5: device sdb1 operational as raid disk 0
Oct 26 09:55:45 bigus kernel: raid5: not enough operational devices for md0 (4/7 failed)
Oct 26 09:55:45 bigus kernel: RAID5 conf printout:
Oct 26 09:55:45 bigus kernel:  --- rd:7 wd:3 fd:4
Oct 26 09:55:45 bigus kernel:  disk 0, o:1, dev:sdb1
Oct 26 09:55:45 bigus kernel:  disk 1, o:1, dev:sdc1
Oct 26 09:55:45 bigus kernel:  disk 2, o:1, dev:sdd1
Oct 26 09:55:45 bigus kernel: raid5: failed to run raid set md0
Oct 26 09:55:45 bigus kernel: md: pers->run() failed ...
Oct 26 09:55:45 bigus kernel: md :do_md_run() returned -22
Oct 26 09:55:45 bigus kernel: md: md0 stopped.
Oct 26 09:55:45 bigus kernel: md: unbind<sdd1>
Oct 26 09:55:45 bigus kernel: md: export_rdev(sdd1)
Oct 26 09:55:45 bigus kernel: md: unbind<sdc1>
Oct 26 09:55:45 bigus kernel: md: export_rdev(sdc1)
Oct 26 09:55:45 bigus kernel: md: unbind<sdb1>
Oct 26 09:55:45 bigus kernel: md: export_rdev(sdb1)
Oct 26 09:55:45 bigus kernel: md: ... autorun DONE.