[Bug 182382] [tcp] sysctl to set TCP CC method on BIG ENDIAN systems fails

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Tue Feb 24 10:54:24 UTC 2015


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=182382

jau at iki.fi changed:

           What    |Removed                     |Added
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                 CC|                            |jau at iki.fi

--- Comment #2 from jau at iki.fi ---
(In reply to Mark Linimon from comment #1)

This was fixed in 2014 by HPS.
The problem occurred due to someone had mistakenly tried to handle sysctl
values without copyin/copyout calls. On i386 and amd64 hardware direct
references using pointers may work, but on ppc and sparc64 copyin and copyout
are needed to move data between the user and kernel address spaces.

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