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From: Eitan Adler <lists@eitanadler.com>
Date: Fri, 3 Aug 2018 20:10:52 -0700
Message-ID: <CAF6rxg=4OnHEJa1OnJerMeEKD66nZg3j-H-XZ-9YAA1TE_NoDQ@mail.gmail.com>
Subject: panic: mutex pmap not owned at ... efirt_machdep.c:255
To: Konstantin Belousov <kib@freebsd.org>,
 freebsd-current Current <freebsd-current@freebsd.org>
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Hi all,

After installing the latest current kernel I get the following panic:

panic: mutex pmap not owned at ... efirt_machdep.c:255
cpuid =3
time = 1
...
mtx_assert()
efi_arch_enter()
efirt_modevents()
module_register_init()
mi_startup()
btext()

Unfortunately this appears to be early enough that the keyboard is not usable.

I'll try to bisect this over the next few days unless someone has an
idea is to the exact cause.

-- 
Eitan Adler