bug#13537: [PATCH] delaying dd allocation

[Pádraig Brady]

On 02/10/2013 10:35 PM, Bernhard Voelker wrote:
> On 01/23/2013 11:48 AM, Ondrej Oprala wrote:
> > Hi Bernhard,
> > thanks for the remarks. Also, you were right about the corner case, the
> > succession of commands
> > $ touch a
> > $ dd if=a seek=1 bs=1
> > $ ^D
> > actually caused a segfault. Sorry, I didn't notice it before.
> >
> > I added a few lines to alloc_obuf, which cover the case when the initial
> > ibuf allocation is skipped but
> > obuf needs to be allocated and is to be set to ibuf and removed the
> > newly redundant check before memset.
> >
> > Thanks,
> > Ondrej
>
> Hi Padraig,
>
> I'm afraid this one slipped from my/our list. ;-/
>
> AFAIR that last patch was okay, but we should have a look
> on it again. Do you think we should include it in 8.21?

It has not slipped from my radar,
though I thought I has responded with my plans for that, sorry.

There is a whole class of heap allocation avoidance bugs
that I intend to merge/address early in the next cycle.
This dd one, one for head (13530), one for split (13537).

thanks,
Pádraig.