linux/arch
Tong Li 23332c2e9d [PATCH] OProfile: fixed x86_64 incorrect kernel call graphs
Fix the problem in kernel 2.6.15.1 (and early versions) that OProfile on
x86_64 does not correctly collect the stack traces for kernel functions.

The original code in valid_kernel_stack() in arch/i386/oprofile/backtrace.c
assumes that the frame pointer (headaddr) should be greater than stack
(i.e., regs).

This assumption is wrong for x86_64 because NMIs in x86_64 use a seperate
stack different from the kernel stack.  Therefore, the variable stack now
points to some location on the NMI stack, which turns out to be at a higher
address than the frame pointer (headaddr) on the kernel stack.  The correct
comparison here should be between headaddr and regs->rsp for x86_64.

Signed-off-by: Tong Li <tong.n.li@intel.com>
Cc: John Levon <levon@movementarian.org>
Cc: Philippe Elie <phil.el@wanadoo.fr>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-03 08:32:04 -08:00
..
alpha [PATCH] alpha show_interrups() trashes argument 2006-02-01 08:53:21 -08:00
arm [ARM] 3289/1: Enable the LCD support for Integrator/CP 2006-01-28 20:54:50 +00:00
arm26 [PATCH] arm26: select BLK_DEV_FD only on A5K 2006-02-01 08:53:22 -08:00
cris
frv [PATCH] Handle TIF_RESTORE_SIGMASK for FRV 2006-01-18 19:20:29 -08:00
h8300
i386 [PATCH] OProfile: fixed x86_64 incorrect kernel call graphs 2006-02-03 08:32:04 -08:00
ia64 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2006-02-01 22:06:15 -08:00
m32r
m68k
m68knommu
mips [PATCH] mips: gdb-stub.c: fix parse error before ; token 2006-02-01 08:53:12 -08:00
parisc [PATCH] e1000: Added disable packet split capability 2006-01-18 16:17:57 -05:00
powerpc [PATCH] PowerPC/PCI Hotplug build break 2006-02-01 16:35:29 -08:00
ppc [PATCH] mv643xx_eth: Fix for building as a module 2006-01-27 11:09:24 -05:00
s390 [PATCH] s390: fix compat syscall wrapper 2006-02-03 08:32:01 -08:00
sh [PATCH] sh: machine_halt()/machine_power_off() cleanups 2006-02-01 08:53:20 -08:00
sh64 [PATCH] arch/sh64/kernel/time.c: add module.h 2006-02-01 08:53:20 -08:00
sparc [SPARC]: Fix compile failures in math-emu. 2006-01-30 16:46:24 -08:00
sparc64 [SPARC64]: Kill compat_sys_clock_settime sign extension stub. 2006-01-30 01:31:09 -08:00
um [PATCH] uml: avoid "CONFIG_NR_CPUS undeclared" bogus error messages 2006-02-01 08:53:23 -08:00
v850 [PATCH] Fix some ucLinux breakage from the tty updates 2006-02-03 08:32:04 -08:00
x86_64 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2006-02-01 22:06:15 -08:00
xtensa [PATCH] Fix some ucLinux breakage from the tty updates 2006-02-03 08:32:04 -08:00