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/openbmc/linux/drivers/block/drbd/ |
H A D | drbd_receiver.c | 580b9767 Fri Feb 26 16:15:23 CST 2010 Lars Ellenberg <lars.ellenberg@linbit.com> drbd: fix broken state change after split-brain attach while connected
Situation: we have diverging data sets, i.e. we had a split brain somewhen, but currently are connected, one node diskless.
Then we try to attach that disk, figure it is consistent, but has a diverging data set, we refuse to attach.
This led to strange state changes: 22:18:35 bb drbd1: peer( Unknown -> Primary ) conn( WFReportParams -> Connected) pdsk( DUnknown -> UpToDate ) 22:19:30 bb drbd1: disk( Diskless -> Attaching ) 22:19:30 bb drbd1: disk( Attaching -> Negotiating ) 22:19:30 bb drbd1: drbd_sync_handshake: 22:19:30 bb drbd1: self 97BF25798B9D5222:F33D1F62ADE698DD:4269796F9D027C83:AC45D8B5C3C1BF93 bits:19449 flags:0 22:19:30 bb drbd1: peer 280DFB6E125465D3:F33D1F62ADE698DC:4269796F9D027C82:AC45D8B5C3C1BF93 bits:2575806 flags:0 22:19:30 bb drbd1: uuid_compare()=100 by rule 90 22:19:30 bb drbd1: Split-Brain detected, dropping connection! 22:19:30 bb drbd1: disk( Negotiating -> Diskless )
while the other side says: 22:19:30 aa drbd1: Split-Brain detected, dropping connection! 22:19:30 aa drbd1: Disk attach process on the peer node was aborted. 22:19:30 aa drbd1: conn( Connected -> TOO_LARGE ) pdsk( Diskless -> Consistent )
This should be fixed now.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> 580b9767 Fri Feb 26 16:15:23 CST 2010 Lars Ellenberg <lars.ellenberg@linbit.com> drbd: fix broken state change after split-brain attach while connected Situation: we have diverging data sets, i.e. we had a split brain somewhen, but currently are connected, one node diskless. Then we try to attach that disk, figure it is consistent, but has a diverging data set, we refuse to attach. This led to strange state changes: 22:18:35 bb drbd1: peer( Unknown -> Primary ) conn( WFReportParams -> Connected) pdsk( DUnknown -> UpToDate ) 22:19:30 bb drbd1: disk( Diskless -> Attaching ) 22:19:30 bb drbd1: disk( Attaching -> Negotiating ) 22:19:30 bb drbd1: drbd_sync_handshake: 22:19:30 bb drbd1: self 97BF25798B9D5222:F33D1F62ADE698DD:4269796F9D027C83:AC45D8B5C3C1BF93 bits:19449 flags:0 22:19:30 bb drbd1: peer 280DFB6E125465D3:F33D1F62ADE698DC:4269796F9D027C82:AC45D8B5C3C1BF93 bits:2575806 flags:0 22:19:30 bb drbd1: uuid_compare()=100 by rule 90 22:19:30 bb drbd1: Split-Brain detected, dropping connection! 22:19:30 bb drbd1: disk( Negotiating -> Diskless ) while the other side says: 22:19:30 aa drbd1: Split-Brain detected, dropping connection! 22:19:30 aa drbd1: Disk attach process on the peer node was aborted. 22:19:30 aa drbd1: conn( Connected -> TOO_LARGE ) pdsk( Diskless -> Consistent ) This should be fixed now. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
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