[Ocfs2-users] Latest OCFS V2 causes OCFS V1 to crash and hang?

[Walter Battistella]

Some history on the cluster first.

The 16 node IA32 cluster is running Redhat 2.1 2.4.9-e.35smp kernel.  It originally had OCFS V1 V1.0.9-12 with few
issues.  We installed OCFS V2 BETA1 and tools and support V1.9.9-1.  We didn't have any problems with OCFS V1 and since
we only created an empty mount point with OCFS V2, we didn't have any issues there either.

We very recently upgraded from OCFS support tools 1.1.0-1 to 1.1.1-1.  This was done as a prerequisite for OCFS V2
BETA2.  We also upgraded OCFS V2 to 1.9.91-1.  We recreated the empty mount point and actually untarred an Oracle Home
to it.  We haven't really used it yet because the cluster has been unstable ever since even without the OCFSV2 device
mounted.  Two of the nodes crashed.  Here is the stack trace.  I had to enter this manually as HP sent me a JPG file
which made the post too large.;-(

Call Trace:  [<f8e7ab48>]  OcfsGlobalCtxt [ocfs] 0x8
ocfs_dismount_volume [ocfs] 0x386
.LC2 [ocfs] 0x600
ocfs_dismount_volume [ocfs] 0x3b7
ocfs_read_super [ocfs] 0x2f1
.LC99 [ocfs] 0x131d
get_sb_bdev [kernel] 0x210
do_kern_mount [kernel] 0xe4
ocfs_fs_type [ocfs] 0x0
ocfs_fs_type [ocfs] 0x0
do_add_mount [kernel] 0x23
do_mount [kernel] 0x13b
__alloc_pages [kernel] 0xf
copy_mount_options [kernel] 0x4c
sys_mount [kernel] 0xa4
system_call [kernel] 0x33

Also, the node hangs during startup if the OCFS V1 mount script is executed even with the mount of the OCFS V2 device
commented out.  Here is the error:

Mar 24 10:18:18 bass156 kernel: ocfs: Mounting device (8,0) on redhat02 (node 2)
Mar 24 10:18:29 bass156 kernel: ocfs: Mounting device (8,32) on redhat02 (node 2)
Mar 24 10:18:40 bass156 kernel: ocfs: Mounting device (8,16) on redhat02 (node 2)
Mar 24 10:18:50 bass156 kernel: ocfs: Mounting device (8,64) on redhat02 (node 2)
Mar 24 10:19:01 bass156 kernel: ocfs: Mounting device (8,96) on redhat02 (node 2)
Mar 24 10:19:11 bass156 kernel: ocfs: Mounting device (8,80) on redhat02 (node 2)
Mar 24 10:19:22 bass156 kernel: ocfs: Mounting device (8,112) on redhat02 (node 2)
Mar 24 10:19:32 bass156 kernel: ocfs: Mounting device (8,144) on redhat02 (node 2)
Mar 24 10:19:43 bass156 kernel: ocfs: Mounting device (8,128) on redhat02 (node 2)
Mar 24 10:19:53 bass156 kernel: ocfs: Mounting device (8,160) on redhat02 (node 2)
Mar 24 10:19:53 bass156 kernel: (6464) ERROR: unable to allocate 81920 bytes of
memory, Linux/ocfshash.c, 63


If we do not load the OCFS V2 module, the nodes are able to start up without any problems.  Any assistance is
appreciated as we want to test OCFS V2 and also have a shared Oracle Home.

--
Regards,
Walter

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