[DRBD-user] running v9 on raspberry pi

Roland Kammerer roland.kammerer at linbit.com
Mon Oct 23 10:50:32 CEST 2017

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.

On Thu, Oct 19, 2017 at 10:12:41AM +1100, Tobin C. Harding wrote:
> $ sudo drbdmanage init
> [  132.862102] drbd: loading out-of-tree module taints kernel.
> [  132.900147] drbd: initialized. Version: 9.0.9-1 (api:2/proto:86-112)
> [  132.900165] drbd: GIT-hash: 41a6c87e94810f681cd57c49b7f1273cb802f018 Makefile build by tobin at rpis, 2017-10-16 22:53:39
> [  132.900171] drbd: registered as block device major 147
> [  136.816634] drbd .drbdctrl: Starting worker thread (from drbdsetup [661])
> [  137.945004] Alignment trap: not handling instruction e1932f9f at [<bf213278>]
> [  137.945022] Unhandled fault: alignment exception (0x001) at 0xdabcb415

This was caused by the compat layer, which in the end generated
unaligned code. This should be fixed in the current HEAD on github[1].
Please test. Please note that code in the submodule was changed, so
don't forget about "git submodule update".

For others reading this, no need to panic, x86 handles unaligned
accesses. And if you are on architectures that do not handle them, also
no need for you to panic, the kernel does that for you ;-).

Regards, rck

[1] https://github.com/LINBIT/drbd-9.0

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