From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ian Campbell <ian.campbell@citrix.com>
Subject: Re: [BUG] kernel panics with drbd
Date: Thu, 6 Aug 2015 09:17:48 +0100
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To: Matthew Vernon <mcv21@cam.ac.uk>, xen-devel@lists.xen.org
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On Wed, 2015-08-05 at 17:22 +0100, Matthew Vernon wrote:
> 
> > Alternatively I don't know if drbd upstream provides a convenient way 
> > to
> > build and install the modules in an out of tree way?
> 
> I built the 8.4.6 kernel module, and that has resolved the kernel
> panics.

Great!

>  So this does seem to have been the "trim" issue you suggested,
> and a problem with version-compatibility between drbd kernel & userland.

FWIW I don't think the fact that some version of the userspace happen to
enable a feature which is buggy on the kernel side is a "version
-compatibility" issue as such, just a plain kernel bug in the 8.4.3 kernel
module which is fixed in the later one.

> So, sorry for bothering you, and thanks for the help.

No problem.

Ian.