On Wed, Aug 09, 2017 at 05:20:22PM +0800, li songmin wrote:
> when I upgrade fdrbd rom 8.3.15 to 8.4.6-5, there is an oops cause by NULL
> pointer Error.
We are at 8.4.10 already.
> upgrade step as follow:
> 1. primary node work as normal
> 2. stop drbd 8.3.15 on secondary node, and upgrade it to 8.4.6-5.
> 3. start secondary node, now data begin sync from primary node.
> 4. upgrade primary node with follow step
> 1. stop business service on drbd
> 2. disconnect drbd for unmount quickly <-- oops on secondary node
> 3. umount filesystem
> 4. primary -> secondary
> 5. connect drbd and waiting sync complete.
> 6. business service may start on secondary node now.
> 7. stop drbd 8.3.15 on primary node, and upgrade it to 8.4.6-5.
> call stack:
> <4>[66071017.155051] Modules linked in: softdog drbd(FN)
What did you need to force the module for?
Probably *that* is your problem right there.
: Lars Ellenberg
: LINBIT | Keeping the Digital World Running
: DRBD -- Heartbeat -- Corosync -- Pacemaker
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