[DRBD-user] al_complete_io() called on inactive extent

[steve]

Hello ,

i'm using drbd 8.3.7 in active/active configuration with one drbd 
resource as
base for lvm .( clvmd , LVs exported by scst , target driver ib_srpt )
i have switched my scst-targets from FILEIO to BLOCKIO and now my logfiles
are full of these messages .

[ 2009.460982] block drbd0: al_complete_io() called on inactive extent 
107607
[ 2009.465283] block drbd0: al_complete_io() called on inactive extent 
107607
[ 2009.469343] block drbd0: al_complete_io() called on inactive extent 
108831
[ 2009.473569] block drbd0: al_complete_io() called on inactive extent 
108831
[ 2009.477806] block drbd0: al_complete_io() called on inactive extent 
108831

Can anyone tell me what does it mean ?

additional system information
     -centos 5.5 x86_64 ( cluster config )
     -vanila kernel 2.6.33.5 with scst patch
    - infiniband stack from kernel ( no OFED )
     -drbd 8.3.7 from kernel ( block-major-147-* )
     - scst from svn
             Tag                                     Revision
             1.0.0                                   439
             SRPT 1.0.0                         450
             1.0.1                                   805
             1.0.1.1                                 1050

regards
-Steve