git: kernel - Misc fixes and debugging
commit 3338cc67bf8b657fca8ae9544aa3f89bb32cffb8
Author: Matthew Dillon <dillon@apollo.backplane.com>
Date: Mon Dec 12 09:37:20 2011 -0800
kernel - Misc fixes and debugging
* Add required CLDs in the exception paths. The interrupt paths already
CLD in PUSH_FRAME.
* Note that the fast_syscall (SYSENTER) path has an implied CLD due to the
hardware mask applied to rflags.
* Add the IOPL bits to the set of bits set to 0 during a fast_syscall.
* When creating a dummy interrupt frame we don't have to push the
actual %cs. Just push $0 so the frame isn't misinterpreted as coming
from userland.
* Additional debug verbosity for freeze_on_seg_fault.
* Reserve two void * fields for LWP debugging (for a later commit)
Summary of changes:
sys/platform/pc32/i386/exception.s | 2 +-
sys/platform/pc64/apic/apic_vector.s | 21 +++++++---
sys/platform/pc64/x86_64/exception.S | 3 +
sys/platform/pc64/x86_64/ipl.s | 2 +-
sys/platform/pc64/x86_64/machdep.c | 2 +-
sys/platform/pc64/x86_64/mp_machdep.c | 2 +-
sys/platform/pc64/x86_64/swtch.s | 5 ++
sys/platform/pc64/x86_64/trap.c | 7 ++-
sys/platform/pc64/x86_64/vm_machdep.c | 68 ++++++++++++++++++++++++++++++++-
sys/sys/proc.h | 2 +
10 files changed, 100 insertions(+), 14 deletions(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/3338cc67bf8b657fca8ae9544aa3f89bb32cffb8
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