Date: Thu, 11 Oct 2001 11:35:27 -0700 (PDT) From: John Baldwin <jhb@FreeBSD.org> To: Garrett Wollman <wollman@khavrinen.lcs.mit.edu> Cc: cvs-all@FreeBSD.org, cvs-committers@FreeBSD.org Subject: RE: cvs commit: src/sys/i386/include atomic.h Message-ID: <XFMail.011011113527.jhb@FreeBSD.org> In-Reply-To: <200110111821.f9BILwb78417@khavrinen.lcs.mit.edu>
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On 11-Oct-01 Garrett Wollman wrote: > <<On Thu, 11 Oct 2001 11:16:24 -0700 (PDT), John Baldwin <jhb@FreeBSD.org> > said: > >> of atomic_cmpset() that works on a Dual Pentium II won't work on the 386 >> because it will result in an illegal instruction fault since the 386 doesn't >> have cmpxchg. One workaround is what the run time linker does for its locks > > A better workaround is for the kernel to emulate the instruction. It > won't be fast, but it will work. Patches accepted. > -GAWollman -- John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/ PGP Key: http://www.baldwin.cx/~john/pgpkey.asc "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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