On Tuesday 28 August 2007 12:44:31 Jan Beulich wrote:
> .. when dumping register state. This is particularly useful when gcc
> managed to tail-call optimize an indirect call which happens to hit a
> NULL (or otherwise invalid) pointer.
I added it, with a warning in the documentation and changelog
.. when dumping register state. This is particularly useful when gcc
managed to tail-call optimize an indirect call which happens to hit a
NULL (or otherwise invalid) pointer.
Signed-off-by: Jan Beulich <[EMAIL PROTECTED]>
Documentation/kernel-parameters.txt |3 +++
arch/i386/kernel/cpu/amd.
On Mon, 13 Aug 2007 16:21:10 +0200 Andi Kleen wrote:
> > I though you did, but since I never saw it appear in any release, I posted
> > this one...
>
> It's a little different (and somewhat hackish I admit)
> ftp://firstfloor.org/pub/ak/x86_64/debug/last-branch
> It has far more overhead than yo
Andi Kleen (on Mon, 13 Aug 2007 15:08:45 +0200) wrote:
>On Mon, Aug 13, 2007 at 12:33:05PM +0100, Jan Beulich wrote:
>
>
>>
>> if (cpu_has_ds) {
>> unsigned int l1;
>> --- linux-2.6.23-rc3/arch/i386/kernel/traps.c2007-08-13
>> 08:59:45.0 +0200
>> +++ 2.6.23-rc3-
> I though you did, but since I never saw it appear in any release, I posted
> this one...
It's a little different (and somewhat hackish I admit)
ftp://firstfloor.org/pub/ak/x86_64/debug/last-branch
It has far more overhead than yours of course.
The only way to merge something like that would be
>>> Andi Kleen <[EMAIL PROTECTED]> 13.08.07 15:08 >>>
>On Mon, Aug 13, 2007 at 12:33:05PM +0100, Jan Beulich wrote:
>> +if (__get_cpu_var(ler_msr)) {
>> +u32 from, to, hi;
>> +
>> +rdmsr(__get_cpu_var(ler_msr), from, hi);
>> +r
On Mon, Aug 13, 2007 at 12:33:05PM +0100, Jan Beulich wrote:
>
> if (cpu_has_ds) {
> unsigned int l1;
> --- linux-2.6.23-rc3/arch/i386/kernel/traps.c 2007-08-13 08:59:45.0
> +0200
> +++ 2.6.23-rc3-x86-ler/arch/i386/kernel/traps.c 2007-08-07
> 10:42:55.000
.. when dumping register state. This is particularly useful when gcc
managed to tail-call optimize an indirect call which happens to hit a
NULL (or otherwise invalid) pointer.
Signed-off-by: Jan Beulich <[EMAIL PROTECTED]>
arch/i386/kernel/cpu/amd.c |4
arch/i386/kernel/cpu/common.c
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