[Ocfs-users] seg fault using ocfstool

[Roland Zimmermann]

Hi all,

i have the following configuration:

RHAS 2.1 2.4.9-e.40enterprise #1 SMP (2 node cluster).

ocfs-support-1.1.2-1
ocfs-tools-1.1.2-1
ocfs-2.4.9-e-enterprise-1.0.12-1

i followed the users guide to install and configure ocfs.
During definition and formatting of ocfs-partitions the ocfstool crashed.

Now restarting ocfstool fails with the following error:

ocfstool
Abnormal termination!
There may be bound raw devices left lying around, please clean them up
using the raw(8) command.
Segmentation fault

checking with raw -qa returns 1 row:
[root at chdb100 root]# raw -qa
/dev/raw/raw1:  bound to major 8, minor 32

i can unbind it with raw /dev/raw/raw1 0 0 but next execution of 
ocfstool fails with the same error.

Here excerpt of strace:
2705  munmap(0x4001d000, 4096)          = 0
2705  stat64("/dev/sdc", {st_mode=S_IFBLK|0660, st_rdev=makedev(8, 32), 
...}) = 0
2705  open("/dev/rawctl", O_RDWR)       = 4
2705  ioctl(4, RAW_SETBIND, 0xbffecb00) = 0
2705  close(4)                          = 0
2705  open("/dev/raw/raw1", O_RDONLY)   = 4
2705  brk(0x80b8000)                    = 0x80b8000
2705  _llseek(4, 0, [0], SEEK_SET)      = 0
2705  read(4, 0x80b7000, 512)           = -1 EIO (Input/output error)
2705  _llseek(4, 0, [0], SEEK_SET)      = 0
2705  read(4, "", 0)                    = 0
2705  --- SIGSEGV (Segmentation fault) @ 0 (0) ---
2705  write(2, "Abnormal termination!\n", 22) = 22
2705  write(2, "There may be bound raw devices l"..., 71) = 71
2705  write(2, "using the raw(8) command.\n", 26) = 26
2705  rt_sigaction(SIGSEGV, {SIG_DFL}, {0x402f0b30, [SEGV], 
SA_RESTORER|SA_RESTART, 0x40346988}, 8) = 0
2705  kill(2705, SIGSEGV)               = 0
2705  sigreturn()                       = ? (mask now [RTMIN])
2705  --- SIGSEGV (Segmentation fault) @ 0 (0) ---
2705  +++ killed by SIGSEGV +++
*****
Indeed 8,32 points to /dev/sdc which is the wrong device, it doesn't 
exist on this node. The shared device is /dev/sdb.

Using ocfstool on the other node works fine.

My question is now: how does ocfstool get the information which device 
to use (not to mention that i deinstalled and reinstalled ocfs, rebooted 
the system, deleted ocfs.conf and recreated a new one)  and how can i 
override those wrong entries?

Thanks in advance,

Roland