[Bug 229222] 11.2-PRERELEASE panic-General Protection Fault, aesni_encrypt_cbc implicated

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=229222

--- Comment #17 from dewayne at heuristicsystems.com.au ---
(In reply to Konstantin Belousov from comment #14)
Ok.
Instruction pointer 0xffffffff808e7d89 which points to frame 7, and from bt's
frame pointer we have 0xfffffe06892d9138

(kgdb) x *tf_rbp
No symbol "tf_rbp" in current context.
(kgdb) x 0xfffffe06892d9138             # frame pointer
0xfffffe06892d9138:     0x892d91d8      # Next frame reference
(kgdb) x 0xfffffe06892d9138+8           # Address of caller
0xfffffe06892d9140:     0x808e41dc      # Instruction pointer, ie previous
caller (frame 8)

I'm guessing the next steps
(kgdb) x 0xfffff892d91d8+8
0xfffff892d91e0:        Cannot access memory at address 0xfffff892d91e0
(kgdb) x 0xfffff892d91d8
0xfffff892d91d8:        Cannot access memory at address 0xfffff892d91d8

Continuing to guess 
(kgdb) x 0xfffff808e41dc
0xfffff808e41dc:        Cannot access memory at address 0xfffff808e41dc
(kgdb) x 0xfffff808e41dc+8
0xfffff808e41e4:        Cannot access memory at address 0xfffff808e41e4

Sorry I need help.  (I work 70% in PROLOG, 10% in Erlang).

I've made the dumps available at http://www.heuristicsystems.com.au/dumps/ 
The files kernel.debug.xz-R vmcore.11.xz-R relate to the kernel created via
make __MAKE_CONF=/dev/null, which is what we're currently examining.

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