Date: Thu, 15 Sep 2005 17:30:08 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/i386/i386 sys_machdep.c src/sys/i386/include pcb_ext.h Message-ID: <200509151730.j8FHU8Go002382@repoman.freebsd.org>
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jhb 2005-09-15 17:30:08 UTC
FreeBSD src repository
Modified files:
sys/i386/i386 sys_machdep.c
sys/i386/include pcb_ext.h
Log:
Explicitly switch to the new TSS by updating the current CPU's TSS selector
and reloading it in i386_extend_pcb() rather than trying to force a context
switch to reload the TSS via the TDF_NEEDRESCHED flag. Optimizations to
avoid calling cpu_switch() when the new thread was identical to the old
thread defeated the attempt to force a TSS reload. Explicitly loading the
new TSS is what we really want to do anyway.
PR: i386/84842
Reported by: Alexander Best arundel at h3c dot de
MFC after: 1 week
Reviewed by: bde (mostly)
Revision Changes Path
1.103 +6 -4 src/sys/i386/i386/sys_machdep.c
1.10 +1 -0 src/sys/i386/include/pcb_ext.h
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