[Bug 280037] KTLS with Intel QAT may trigger kernel panics

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=280037

--- Comment #10 from ss3bsd <3226388001@jcom.home.ne.jp> ---
To be clear,

 Panic #1:
   reproducible with a clean kernel.
   I was aware of that "kldunload qat" might trigger panic at 13.x too.

 Panic #2:
   log was acquired for a dirty kernel.
   It is intermittent and so far is difficult to intentionally reproduce. I may
not be able to offer another log with clean kernel.

   Therefore, at this moment I cannot assure that my patch is not affecting
anything. What I can tell is that 13.x was stably running with KTLS and QAT,
and I had not experienced this before upgrading to 14.1 even with the same kind
of private patch.

 Panic #3: reproducible with a clean kernel.
   I did not try to switch dev.qat_ocf.0.enable=0 when the host was running
13.x. I cannot tell whether it is common for 14.1 and 13.x. (may be not exist
in 13.x?)

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