[Drbd-dev] DRBD8: conn state stuck in SyncSource while target is connected.

[Montrose, Ernest]

Hi all,
We have seen a problem where essentially the resync is reported done
from a suspended state.  There was no invalidate done in our test.  So
it is weird the resync got suspended in the first place. But assume that
somehow we get suspended.  The end result is that the syncSource conn
state get stuck in "SyncSource" while the Target is happily connected.
The logs below shows
the problem.  Any clue?
 
On the syncSource we see:
May  8 03:50:12 bruce kernel: drbd0: Began resync as SyncSource (will
sync 840 KB [210 bits set]).
May  8 03:50:12 bruce kernel: drbd0: Writing meta data super block now.
May  8 03:50:13 bruce kernel: drbd0: conn( SyncSource -> PausedSyncS )
aftr_isp( 0 -> 1 )
May  8 03:50:13 bruce kernel: drbd0: Resync suspended   <<<< We are in
paused state
May  8 03:50:13 bruce kernel: drbd0: Resync done (total 1 sec; paused 0
sec; 840 K/sec)  <<<We are done?????
May  8 03:50:13 bruce kernel: drbd0:  uuid[History_start] now
1DCA5DA245F96038
May  8 03:50:13 bruce kernel: drbd0:  uuid[Bitmap] now 0000000000000000
May  8 03:50:13 bruce kernel: drbd0: conn( PausedSyncS -> Connected )
pdsk( Inconsistent -> UpToDate ) <<<Paused to connected!!!!
May  8 03:50:13 bruce kernel: drbd0: conn( Connected -> PausedSyncS )
peer_isp( 0 -> 1 )
May  8 03:50:13 bruce kernel: drbd0: Writing meta data super block now.
May  8 03:50:13 bruce kernel: drbd0: peer_isp( 1 -> 0 )
May  8 03:50:13 bruce kernel: drbd0: conn( PausedSyncS -> SyncSource )
aftr_isp( 1 -> 0 )
May  8 03:50:13 bruce kernel: drbd0: Syncer continues.

 
On the SyncTarget all seems to be normal:
May  8 03:50:13 dick kernel: drbd0: conn( WFSyncUUID -> SyncTarget )
disk( UpToDate -> Inconsistent )
May  8 03:50:13 dick kernel: drbd0: Began resync as SyncTarget (will
sync 840 KB [210 bits set]).
May  8 03:50:13 dick kernel: drbd0: Writing meta data super block now.
May  8 03:50:14 dick kernel: drbd0: Resync done (total 1 sec; paused 0
sec; 840 K/sec)
May  8 03:50:14 dick kernel: drbd0:  uuid[Bitmap] now A10989D4FAD4C4BB
May  8 03:50:14 dick kernel: drbd0:  uuid[History_start] now
B2E9873EF8AC35CB
May  8 03:50:14 dick kernel: drbd0:  uuid[History_end] now
161E8961AB2B5473
May  8 03:50:14 dick kernel: drbd0:  uuid[History_start] now
A10989D4FAD4C4BB
May  8 03:50:14 dick kernel: drbd0:  uuid[Bitmap] now 1DCA5DA245F96038
May  8 03:50:14 dick kernel: drbd0:  uuid[Current] now 8B19AE5BFEDF83D4
May  8 03:50:14 dick kernel: drbd0:  uuid[History_start] now
1DCA5DA245F96038
May  8 03:50:14 dick kernel: drbd0:  uuid[Bitmap] now 0000000000000000
May  8 03:50:14 dick kernel: drbd0: conn( SyncTarget -> Connected )
disk( Inconsistent -> UpToDate )
May  8 03:50:14 dick kernel: drbd0: Writing meta data super block now.

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