cvs commit: src/sys/amd64/amd64 mp_machdep.c trap.c src/sys/amd64/conf NOTES src/sys/amd64/include smp.h src/sys/conf options.amd64 options.i386 src/sys/i386/conf NOTES...

[Doug White]

dwhite      2005-04-30 20:01:00 UTC

  FreeBSD src repository

  Modified files:
    sys/amd64/amd64      mp_machdep.c trap.c 
    sys/amd64/conf       NOTES 
    sys/amd64/include    smp.h 
    sys/conf             options.amd64 options.i386 
    sys/i386/conf        NOTES 
    sys/i386/i386        mp_machdep.c trap.c 
    sys/i386/include     smp.h 
    sys/kern             subr_kdb.c subr_smp.c 
    sys/sys              smp.h 
  Log:
  Implement an alternate method to stop CPUs when entering DDB. Normally we use
  a regular IPI vector, but this vector is blocked when interrupts are disabled.
  With "options KDB_STOP_NMI" and debug.kdb.stop_cpus_with_nmi set, KDB will
  send an NMI to each CPU instead. The code also has a context-stuffing
  feature which helps ddb extract the state of processes running on the
  stopped CPUs.
  
  KDB_STOP_NMI is only useful with SMP and complains if SMP is not defined.
  This feature only applies to i386 and amd64 at the moment, but could be
  used on other architectures with the appropriate MD bits.
  
  Submitted by:   ups
  
  Revision  Changes    Path
  1.253     +74 -0     src/sys/amd64/amd64/mp_machdep.c
  1.284     +8 -0      src/sys/amd64/amd64/trap.c
  1.34      +6 -0      src/sys/amd64/conf/NOTES
  1.84      +5 -0      src/sys/amd64/include/smp.h
  1.20      +3 -0      src/sys/conf/options.amd64
  1.220     +3 -0      src/sys/conf/options.i386
  1.1198    +5 -0      src/sys/i386/conf/NOTES
  1.247     +74 -0     src/sys/i386/i386/mp_machdep.c
  1.273     +8 -0      src/sys/i386/i386/trap.c
  1.82      +5 -0      src/sys/i386/include/smp.h
  1.11      +50 -0     src/sys/kern/subr_kdb.c
  1.195     +29 -0     src/sys/kern/subr_smp.c
  1.84      +4 -0      src/sys/sys/smp.h