[dm-devel] [PATCH v2 11/21] libmultipath: protect racy libdevmapper calls with a mutex

[Martin Wilck]

On Tue, 2020-09-29 at 00:57 -0500, Benjamin Marzinski wrote:
> On Thu, Sep 24, 2020 at 03:37:06PM +0200, mwilck at suse.com wrote:
> > From: Martin Wilck <mwilck at suse.com>
> > 
> > dm_udev_wait() and dm_task_run() may access global / static state
> > in libdevmapper. They need to be protected by a lock in in our
> > multithreaded library.
> > 
> 
> This breaks the dmevents unit tests. dm_task_run is no longer called
> in
> dmevents.c. Intead, its only called in devmapper.c, so this needs to
> be
> in dmevents-test_OBJDEPS

Argh, sorry. We need to figure out a way to run this test routinely.
It's the only one I don't run after every patch, simply because it
needs root. Anyway, no excuse. Sorry. I'll fix it up.

Martin