On 10/12/2011 10:02 PM, Alexander Graf wrote:
> On 12.10.2011, at 20:05, Stefan Weil wrote:
>
> > Hello Avi,
> >
> > commit 36b58628 increased the alignment for some large memory
> > blocks (typically the system RAM) to 2 MiB (QEMU_VMALLOC_ALIGN)
> > on x86_64 Linux hosts.
> >
> > As far as I kno
On 10/13/2011 09:56 AM, Gerd Hoffmann wrote:
Is there some way for apps to figure they are running in valgrind?
Then we could choose a different alignment automagically.
Yes, valgrind.h (on RH distros that's in package valgrind-devel; there
is a valgrind.pc file to add the correct include pat
Hi,
I can try to make QEMU more useable with Valgrind by changing
the QEMU code (which was Valgrind compatible up to Avi's change).
Is there some way for apps to figure they are running in valgrind?
Then we could choose a different alignment automagically.
Who aborts btw? Is this valgrind
On 12.10.2011, at 23:19, Stefan Weil wrote:
> Am 12.10.2011 22:47, schrieb Alexander Graf:
>> Well, yes, my point is that it's a bug in valgrind that should be fixed. I
>> don't think we should special-case QEMU because of bugs in debugging
>> software :)
>>
>> Alex
>
> Yes, the valgrind bug
Am 12.10.2011 22:47, schrieb Alexander Graf:
Well, yes, my point is that it's a bug in valgrind that should be
fixed. I don't think we should special-case QEMU because of bugs in
debugging software :)
Alex
Yes, the valgrind bug should be fixed. I don't know why it isn't,
but that's not the p
On 12.10.2011, at 22:41, Stefan Weil wrote:
> Am 12.10.2011 22:02, schrieb Alexander Graf:
>> Actually, I'd much rather prefer to keep the differences between KVM and
>> non-KVM low here. THP can potentially also work on TCG, so the alignment
>> isn't completely moot here. Though it's certainly
Am 12.10.2011 22:02, schrieb Alexander Graf:
Actually, I'd much rather prefer to keep the differences between KVM
and non-KVM low here. THP can potentially also work on TCG, so the
alignment isn't completely moot here. Though it's certainly a lot less
useful, as code isn't directly executed fro
On 12.10.2011, at 20:05, Stefan Weil wrote:
> Hello Avi,
>
> commit 36b58628 increased the alignment for some large memory
> blocks (typically the system RAM) to 2 MiB (QEMU_VMALLOC_ALIGN)
> on x86_64 Linux hosts.
>
> As far as I know, this was only required for KVM.
>
> There is a bad side ef
Hello Avi,
commit 36b58628 increased the alignment for some large memory
blocks (typically the system RAM) to 2 MiB (QEMU_VMALLOC_ALIGN)
on x86_64 Linux hosts.
As far as I know, this was only required for KVM.
There is a bad side effect of this increase: the Valgrind tool
only supports an align
