Commit graph

5 commits

Author SHA1 Message Date
H. Peter Anvin
d1705c558c x86: fix kernel panic on 32 bits when profiling
Latest kernel has a kernel panic in booting on i386 machine when
profile=2 setting in cmdline.  It is due to 'sp' being incorrect in
profile_pc().

BUG: unable to handle kernel NULL pointer dereference at 00000246
IP: [<c01288b6>] profile_pc+0x2a/0x48
*pde = 00000000
Oops: 0000 [#1] SMP

This differs from the original version by Alex Shi in that we use the
kernel_stack_pointer() inline already defined in <asm/ptrace.h> for
this purpose, instead of #ifdef.

Originally-by: Alex Shi <alex.shi@intel.com>
Cc: "Chen, Tim C" <tim.c.chen@intel.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2009-10-12 11:53:51 -07:00
Rusty Russell
1d1afc1957 cpumask: remove last assignment to mask field of struct irqaction.
This snuck in after the patch which removed all the others.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Ingo Molnar <mingo@elte.hu>
2009-09-24 09:34:37 +09:30
Thomas Gleixner
54e2603f1a x86: platform: Fix section annotations
init_IRQ() and x86_late_time_init() are missing __init annotations.

The x86 platform ops variables are annotated, but the annotation needs
to be put between the variable name and the "=" of the initializer.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2009-09-16 10:21:10 +02:00
Thomas Gleixner
dd0a70c8f9 x86: Move tsc_init to late_time_init
We do not need the TSC before late_time_init. Move the tsc_init to the
late time init code so we can also utilize HPET for calibration (which
we claimed to do but never did except in some older kernel
version). This also helps Moorestown to calibrate the TSC with the
AHBT timer which needs to be initialized in late_time_init like HPET.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2009-08-31 09:35:47 +02:00
Thomas Gleixner
47926214d8 x86: Replace the now identical time_32/64.c by time.c
Remove the redundant copy.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2009-08-31 09:35:46 +02:00
Renamed from arch/x86/kernel/time_32.c (Browse further)