[Ocfs2-devel] 40TB RAID and OCFS2 woes (inode64, JDB2, huge partition support, Volume might try to write to blocks beyond what jbd can address in 32 bits)

[Sunil Mushran <sunil.mushran@oracle.com>]

Robert Smith wrote:
> root at s2-replay02:/usr/src/ocfs2-tools-1.4.3# dmesg | tail -n 30 
> ....
> ....
> [ 1017.163255] OCFS2 Node Manager 1.5.0
> [ 1017.228882] OCFS2 DLM 1.5.0
> [ 1017.232440] ocfs2: Registered cluster interface o2cb
> [ 1017.247862] OCFS2 DLMFS 1.5.0
> [ 1017.248072] OCFS2 User DLM kernel interface loaded
> [ 1032.163970] OCFS2 1.5.0
> [ 1032.168415] (3776,6):ocfs2_initialize_super:2166 ERROR: Volume might try to write to blocks beyond what jbd can address in 32 bits.
> [ 1032.168490] (3776,6):ocfs2_fill_super:1008 ERROR: status = -22
> [ 1032.168525] ocfs2: Unmounting device (252,0) on (node 0)
> [ 1220.077245] (3821,5):ocfs2_initialize_super:2166 ERROR: Volume might try to write to blocks beyond what jbd can address in 32 bits.
> [ 1220.077306] (3821,5):ocfs2_fill_super:1008 ERROR: status = -22
> [ 1220.077342] ocfs2: Unmounting device (252,0) on (node 0)
> [ 1228.102152] (3834,4):ocfs2_initialize_super:2166 ERROR: Volume might try to write to blocks beyond what jbd can address in 32 bits.
> [ 1228.102276] (3834,4):ocfs2_fill_super:1008 ERROR: status = -22
> [ 1228.102317] ocfs2: Unmounting device (252,0) on (node 0)
> [ 1236.126519] (3844,4):ocfs2_initialize_super:2166 ERROR: Volume might try to write to blocks beyond what jbd can address in 32 bits.
> [ 1236.126581] (3844,4):ocfs2_fill_super:1008 ERROR: status = -22
> [ 1236.126621] ocfs2: Unmounting device (252,0) on (node 0)
> [ 1244.150444] (3852,4):ocfs2_initialize_super:2166 ERROR: Volume might try to write to blocks beyond what jbd can address in 32 bits.
> [ 1244.150504] (3852,4):ocfs2_fill_super:1008 ERROR: status = -22
> [ 1244.150539] ocfs2: Unmounting device (252,0) on (node 0)
> root at s2-replay02:/usr/src/ocfs2-tools-1.4.3#
>
>
> Think I need to recompile the kernel and change the built in support for JBD v1 to a module? Or modularize both of them?
>   

The message is hard-coded. Ignore the jbd in the error message. You are 
using jbd2.

But that check is there for a reason. As I said before >16TB has not 
been tested
thoroughly as yet. The check will be removed once we've completed the 
testing.