From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Thu, 11 Oct 2018 13:58:16 -0500
From: David Teigland <teigland@redhat.com>
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Subject: Re: [linux-lvm] [lvmlockd] lvm command hung with sanlock log
 "ballot 3 abort1 larger lver in bk..."
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To: Damon Wang <damon.devops@gmail.com>
Cc: linux-lvm@redhat.com

> >  2018-10-09 20:49:16 4854717 [29802]: r2320 write_host_block host_id
> >  19 flags 1 gen 1 dblock 29802:510:140245418403952:140245440585933:140245418403840:4:RELEASED.
> 
> Perfect, that shows exactly where the bug is.  There's a case where it has
> missed saving the latest dblock values, so random values are being copied
> back to the dblock instead.  I'll push out a patch once I've had a chance
> to test it.

Here's the fix:
https://www.pagure.io/sanlock/c/1471e241a33abc1f0774ce7ec418a134b655f9ac?branch=master

Thanks for the help finding that.
Dave