svn commit: r198868 - in head/sys: amd64/amd64 i386/i386

Dag-Erling Smørgrav des at
Wed Nov 4 15:25:27 UTC 2009

Attilio Rao <attilio at> writes:
> Log:
>   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

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