git: kernel64 - Fix disabled interrupts during dbg/bpt trap

Matthew Dillon dillon at
Mon Jan 31 13:43:32 PST 2011

commit bd52bedfc1ee463fcac536b3095817ff4400c191
Author: Matthew Dillon <dillon at>
Date:   Mon Jan 31 13:40:55 2011 -0800

    kernel64 - Fix disabled interrupts during dbg/bpt trap
    * Interrupts were left improperly disabled during a dbg or bpt trap.
      i386 enables interrupts for these traps.  x86-64 needs to as well
      or it will hit an assertion in lwkt_switch() under certain circumstances.
    * Make debug code in lwkt_switch() also require INVARIANTS to function.
      NOTE: This is temporary debug code and should be removed at some point
      after 48-core testing is complete.

Summary of changes:
 sys/kern/lwkt_thread.c               |    2 +-
 sys/platform/pc64/x86_64/exception.S |   15 ++++++++++-----
 2 files changed, 11 insertions(+), 6 deletions(-)

DragonFly BSD source repository

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