svn commit: r198868 - in head/sys: amd64/amd64 i386/i386
des at des.no
Wed Nov 4 15:25:27 UTC 2009
Attilio Rao <attilio at FreeBSD.org> writes:
> Opteron rev E family of processor expose a bug where, in very rare
> ocassions, memory barriers semantic is not honoured by the hardware
> itself. As a result, some random breakage can happen in uninvestigable
> ways (for further explanation see at the content of the commit itself).
According to the reference you gave, OpenSolaris has a workaround for
this issue. Perhaps we should adopt it?
Dag-Erling Smørgrav - des at des.no
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