On Tue, 25 Jun 2019 09:40:54 -0700 Eric Biggers <ebiggers@xxxxxxxxxx> wrote: Hello, > Hi Michal, > > The stack trace shows that crypto_remove_spawns() is being called from > crypto_unregister_instance(). Therefore, the instance should already be > registered and have initialized cra_users. Now, I don't claim to understand the > spawn lists stuff that well, so I could have missed something; but if there *is* > a bug, I'd like to see a proper explanation. Unfortunately, I don't have an explanation either. > > Did you check whether this is actually reproducible on mainline, and not just > the SUSE v4.12 based kernel? Mainline crashes on boot:/ Need to find a recent working kernel. Thanks Michal