Date: Sun, 18 May 2003 23:05:31 -0700 (PDT) From: Marcel Moolenaar <marcel@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/ia64/ia64 pmap.c Message-ID: <200305190605.h4J65Vol055801@repoman.freebsd.org>
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marcel 2003/05/18 23:05:31 PDT
FreeBSD src repository
Modified files:
sys/ia64/ia64 pmap.c
Log:
Unconditionally set pcb_current_pmap. WIP versions of the code
previously committed cleared pcb_current_pmap prior to changing
the region registers, but that was removed before committing.
Since we don't normally (at all?) pass a NULL pointer, the bug
was mostly harmless. Fix it while I'm here...
I'm here because we need to have data serialization after writing
to the region registers. Not doing so was likely the cause of the
hangs we were experiencing. General exceptions in cpu_switch may
also be caused by the lack of serialization.
Approved by: re (blanket)
Revision Changes Path
1.104 +2 -1 src/sys/ia64/ia64/pmap.c
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