lwn.git/arch/i386/Kconfig.debug, branch v3.12.10

x86: unification of i386 and x86_64 Kconfig.debug

2007-10-25T20:35:10+00:00

Adding proper dependencies so the two Kconfig.debug files are now identical and move the result file to x86. Signed-off-by: Randy Dunlap Signed-off-by: Sam Ravnborg

Replace CONFIG_SOFTWARE_SUSPEND with CONFIG_HIBERNATION

2007-07-29T23:45:38+00:00

Replace CONFIG_SOFTWARE_SUSPEND with CONFIG_HIBERNATION to avoid confusion (among other things, with CONFIG_SUSPEND introduced in the next patch). Signed-off-by: Rafael J. Wysocki Signed-off-by: Linus Torvalds

Allow DEBUG_RODATA and KPROBES to co-exist

2007-06-21T23:02:50+00:00

Do not mark the kernel text read only if KPROBES is in the kernel; kprobes needs to hot-patch the kernel text to insert it's instrumentation. In this case, only mark the .rodata segment as read only. Signed-off-by: Arjan van de Ven Tested-by: S. P. Prasanna Cc: Andi Kleen Cc: William Cohen Cc: Ian McDonald Signed-off-by: Linus Torvalds

x86: Disable KPROBES with DEBUG_RODATA for now

2007-06-20T21:27:26+00:00

Right now Kprobes cannot write to the write protected kernel text when DEBUG_RODATA is enabled. Disallow this in Kconfig for now. Temporary fix for 2.6.22. In .23 add code to temporarily unprotect it. Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds

[PATCH] i386: PARAVIRT: Remove CONFIG_DEBUG_PARAVIRT

2007-05-02T17:27:13+00:00

Remove CONFIG_DEBUG_PARAVIRT. When inlining code, this option attempts to trash registers in the patch-site's "clobber" field, on the grounds that this should find bugs with incorrect clobbers. Unfortunately, the clobber field really means "registers modified by this patch site", which includes return values. Because of this, this option has outlived its usefulness, so remove it. Signed-off-by: Jeremy Fitzhardinge Signed-off-by: Andi Kleen Cc: Rusty Russell

[PATCH] i386: Paravirt debug defaults off

2007-02-13T12:26:22+00:00

Deliberate register clobber around performance critical inline code is great for testing, bad to leave on by default. Many people ship with DEBUG_KERNEL turned on, so stop making DEBUG_PARAVIRT default on. Signed-off-by: Zachary Amsden Signed-off-by: Andi Kleen

[PATCH] paravirt: Patch inline replacements for paravirt intercepts

2006-12-07T01:14:08+00:00

It turns out that the most called ops, by several orders of magnitude, are the interrupt manipulation ops. These are obvious candidates for patching, so mark them up and create infrastructure for it. The method used is that the ops structure has a patch function, which is called for each place which needs to be patched: this returns a number of instructions (the rest are NOP-padded). Usually we can spare a register (%eax) for the binary patched code to use, but in a couple of critical places in entry.S we can't: we make the clobbers explicit at the call site, and manually clobber the allowed registers in debug mode as an extra check. And: Don't abuse CONFIG_DEBUG_KERNEL, add CONFIG_DEBUG_PARAVIRT. And: AK: Fix warnings in x86-64 alternative.c build And: AK: Fix compilation with defconfig And: ^From: Andrew Morton Some binutlises still like to emit references to __stop_parainstructions and __start_parainstructions. And: AK: Fix warnings about unused variables when PARAVIRT is disabled. Signed-off-by: Rusty Russell Signed-off-by: Jeremy Fitzhardinge Signed-off-by: Chris Wright Signed-off-by: Zachary Amsden Signed-off-by: Andi Kleen Signed-off-by: Andrew Morton

[PATCH] lockdep: irqtrace subsystem, i386 support

2006-07-03T22:27:03+00:00

Add irqflags-tracing support to i386. Signed-off-by: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] lockdep: i386 remove multi entry backtraces

2006-07-03T22:27:02+00:00

Remove CONFIG_STACK_BACKTRACE_COLS. This feature didnt work out: instead of making kernel debugging more efficient, it produces much harder to read stacktraces! Check out this trace for example: http://static.flickr.com/47/158326090_35d0129147_b_d.jpg That backtrace could have been printed much nicer as a one-entry-per-line thing, taking the same amount of screen real-estate. Plus we remove 30 lines of kernel code as well. Signed-off-by: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] i386: Move CONFIG_DOUBLEFAULT into arch/i386 where it belongs.

2006-04-18T17:39:20+00:00

Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds