[Bug 251462] Failing transfers over nfsv4 with krb5i on CPU with SHA acceleration

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=251462

Žilvinas Žaltiena <zaltys at inbox.ru> changed:

           What    |Removed                     |Added
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           Severity|Affects Only Me             |Affects Some People

--- Comment #1 from Žilvinas Žaltiena <zaltys at inbox.ru> ---
I reproduced this on AMD Ryzen 7 3800X CPU too, which also has SHA extensions.
NFS transfers fail with krb5i, if aesni modules is loaded.

I tried running crypto tests from FreeBSD tests suite. They passed
successfully.

One interesting thing is forcing sync on NFS mount on Linux client makes
transfers succeed even with aesni module loaded on FreeBSD server, but at 2-3x
lower speed (80-100MB/s vs 25MB/s). Normally Linux client piles the data in the
memory until application closes/locks/flushes the file or there is no more
memory, and only then client starts sending it to server.

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