I initially discovered a signed integer overflow on this line. Since
this value is updated in multiple threads, I use an atomic update and
as it happens atomic addition is defined to wrap around. However,
there's still a potential bug in that the error_count may wrap around
and equal zero again cau
Sorry! Let's try an attachment then.
On 16 November 2017 at 14:36, Michael Niedermayer
wrote:
> On Thu, Nov 16, 2017 at 12:41:32PM -0800, Nick Lewycky wrote:
>> I initially discovered a signed integer overflow on this line. Since
>> this value is updated in multiple thre
2017 at 12:49, Michael Niedermayer
wrote:
> On Fri, Nov 17, 2017 at 05:10:17PM -0300, James Almer wrote:
> > On 11/17/2017 4:20 PM, James Almer wrote:
> > > On 11/17/2017 4:16 PM, Michael Niedermayer wrote:
> > >> On Thu, Nov 16, 2017 at 03:07:54PM -0800, Nick Le
Newer versions of clang will allocate %rbx as one of the inline asm inputs,
even in PIC. This occurs when building ffmpeg with clang -fsanitize=address
-O1 -fPIE. Because the asm does clobber %bx whether PIC is on or off, just
include %bx in the clobber list regardless of whether PIC is on or off.
On 6 May 2015 at 11:58, Carl Eugen Hoyos wrote:
> Nick Lewycky google.com> writes:
>
> > This occurs when building ffmpeg with clang
> > -fsanitize=address -O1 -fPIE.
>
> What is the usecase for -O1?
>
It's very important for asan. ASan instruments every mem
On 6 May 2015 at 13:08, Carl Eugen Hoyos wrote:
> Nick Lewycky google.com> writes:
>
> > On 6 May 2015 at 11:58, Carl Eugen Hoyos:
> >
> > > Nick Lewycky google.com> writes:
> > >
> > > > This occurs when building ffmpeg with clang
> &g
On 6 May 2015 at 15:06, Michael Niedermayer wrote:
> Hi
>
> On Wed, May 06, 2015 at 11:52:59AM -0700, Nick Lewycky wrote:
> > Newer versions of clang will allocate %rbx as one of the inline asm
> inputs,
>
> Thats great
>
>
> > even in PIC. This oc
On 6 May 2015 at 18:03, Michael Niedermayer wrote:
> On Wed, May 06, 2015 at 04:08:09PM -0700, Nick Lewycky wrote:
> > On 6 May 2015 at 15:06, Michael Niedermayer wrote:
> >
> > > Hi
> > >
> > > On Wed, May 06, 2015 at 11:52:59AM -0700, Nick Lewycky w
On 8 May 2015 at 12:06, Michael Niedermayer wrote:
> On Fri, May 08, 2015 at 10:50:49AM -0700, Nick Lewycky wrote:
> > On 6 May 2015 at 18:03, Michael Niedermayer wrote:
> >
> > > On Wed, May 06, 2015 at 04:08:09PM -0700, Nick Lewycky wrote:
> > > > On 6 Ma
On 8 May 2015 at 14:28, Michael Niedermayer wrote:
> On Fri, May 08, 2015 at 12:43:20PM -0700, Nick Lewycky wrote:
> > On 8 May 2015 at 12:06, Michael Niedermayer wrote:
> >
> > > On Fri, May 08, 2015 at 10:50:49AM -0700, Nick Lewycky wrote:
> > > > On 6 Ma
On 11 May 2015 at 16:18, Michael Niedermayer wrote:
> On Mon, May 11, 2015 at 03:55:40PM -0700, Nick Lewycky wrote:
> > On 8 May 2015 at 14:28, Michael Niedermayer wrote:
> >
> > > On Fri, May 08, 2015 at 12:43:20PM -0700, Nick Lewycky wrote:
> > > > On 8 Ma
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