Dreaded '__mb_sb_limit' Error And What To Do About It

Kris Kennaway kris at FreeBSD.org
Sun Nov 25 01:45:51 PST 2007

Tim Daneliuk wrote:
> On one of my FBSD 6-STABLE machines, I have the system cvsup the latest
> sources nightly and rebuild (but not install) the system and all
> relevant kernels.   Every week or so, I go to single user and
> install what was last built (assuming the build worked OK).
> My last such venture was on 11-20-2007 without problems.
> Tonight, I tried to do this again, and immediately got hit with
> the libexec '_mb_sb_limit' symbol missing problem.  I fell back
> to the 11-20-2007 system image, and all is once again well.
> So, here's my question.  Is this a temporary problem that will be
> resolved at some point before 6.3 is released, or do I have have to
> rebuild the entire system applications set to get new binaries that
> don't depend on this symbol?  Also, if it is going to be fixed, how
> will I know it has been before trying another update like this again?

See discussion on freebsd-stable


> TIA,
> P.S. Rebuilding the apps on this system would be a REAL pain.  Here's
> hoping the fine FBSD developers can find it within themselves to
> make this symbol once again appear so old binaries will run unchanged.

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