Steven Rostedt f8988175fd x86: Allow nesting of the debug stack IDT setting ... When the NMI handler runs, it checks if it preempted a debug handler and if that handler is using the debug stack. If it is, it changes the IDT table not to update the stack, otherwise it will reset the debug stack and corrupt the debug handler it preempted. Now that ftrace uses breakpoints to change functions from nops to callers, many more places may hit a breakpoint. Unfortunately this includes some of the calls that lockdep performs. Which causes issues with the debug stack. It too needs to change the debug stack before tracing (if called from the debug handler). Allow the debug_stack_set_zero() and debug_stack_reset() to be nested so that the debug handlers can take advantage of them too. [ Used this_cpu_*() over __get_cpu_var() as suggested by H. Peter Anvin ] Signed-off-by: Steven Rostedt <rostedt@goodmis.org>		2012-05-31 23:12:21 -04:00
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alpha	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-05-23 18:11:45 -07:00
arm	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-05-23 18:11:45 -07:00
avr32	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-05-23 18:11:45 -07:00
blackfin	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-05-23 18:11:45 -07:00
c6x	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-05-23 18:11:45 -07:00
cris	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-05-23 18:11:45 -07:00
frv	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-05-23 18:11:45 -07:00
h8300	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-05-23 18:11:45 -07:00
hexagon	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-05-23 18:11:45 -07:00
ia64	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-05-23 18:11:45 -07:00
m32r	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-05-23 18:11:45 -07:00
m68k	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-05-23 18:11:45 -07:00
microblaze	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-05-23 18:11:45 -07:00
mips	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-05-23 18:11:45 -07:00
mn10300	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-05-23 18:11:45 -07:00
openrisc	Merge branch 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-05-23 10:59:07 -07:00
parisc	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-05-23 18:11:45 -07:00
powerpc	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-05-23 18:11:45 -07:00
s390	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-05-23 18:11:45 -07:00
score	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-05-23 18:11:45 -07:00
sh	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-05-23 18:11:45 -07:00
sparc	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-05-23 18:11:45 -07:00
tile	Merge branch 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-05-23 10:59:07 -07:00
um	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-05-23 18:11:45 -07:00
unicore32	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-05-23 18:11:45 -07:00
x86	x86: Allow nesting of the debug stack IDT setting	2012-05-31 23:12:21 -04:00
xtensa	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-05-23 18:11:45 -07:00
.gitignore
Kconfig	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2012-05-21 20:27:36 -07:00