On Thu, 10 Jul 2003, Julian Elischer wrote: > I have a small "proof of concept" scheduler hack at: > http://www.freebsd.org/~julian/it.diff > ... > It's only implemented for SMP/i386 as the code to halt the cpu is only > present (from my quick view) in x86 and it doesn't make sense in UP..
ipi_selected() is essentially MI although it is declared in <machine/smp.h> and takes MD arg types, since it is used in subr_smp.c and subr_smp.c is MI by definition. Its second arg is u_int64_t on alphas, int on ia64's, and u_int on other arches. This isn't a problem since the arg is always a #define'd value like IPI_AST and these values have MD definitions. Its first arg has type u_int64_t on ia64's and u_int on other arches. This is bogus for ia64's since subr_smp.c uses u_int for all bitmaps of CPUs, so systems with more than 32 CPUs cannot actually work. Bruce _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "[EMAIL PROTECTED]"
