Date: Sun, 24 Aug 1997 13:33:33 -0700 (PDT) From: Steve Passe <fsmp@FreeBSD.ORG> To: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG, cvs-sys@FreeBSD.ORG Subject: cvs commit: src/sys/i386/include smp.h src/sys/i386/isa ipl_funcs.c src/sys/i386/i386 mp_machdep.c Message-ID: <199708242033.NAA02039@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
fsmp 1997/08/24 13:33:33 PDT
Modified files:
sys/i386/include smp.h
sys/i386/isa ipl_funcs.c
sys/i386/i386 mp_machdep.c
Log:
A clean fix for the spl "deadlock before smp_active" problem.
Added a new variable, 'bsp_apic_ready', which is set as soon as the bootstrap
CPU has initialized its local APIC. Conditionalize the GENSPLR functions
to call ss_lock ONLY after bsp_apic_ready is TRUE; This should prevent
any problems with races between the time the 1st AP becomes ready and the
time smp_active is set.
Revision Changes Path
1.29 +2 -1 src/sys/i386/include/smp.h
1.5 +22 -19 src/sys/i386/isa/ipl_funcs.c
1.44 +3 -1 src/sys/i386/i386/mp_machdep.c
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199708242033.NAA02039>