On 10/13, Oleg Nesterov wrote:
>
> On 10/12, Andrew Morton wrote:
> >
> > Bisection shows that this problem is caused by these two patches:
> >
> > pid-namespaces-allow-cloning-of-new-namespace.patch
>
> This? http://marc.info/?l=linux-mm-commits&m=118712242002039
>
> Pavel, this patch has a subtle difference compared to what we discussed on
> containers list. It moves put_user(parent_tidptr) from copy_process() to
> do_fork(), so we don't report child's pid if copy_process() failed. I do
> not think this is bad, but Eric seems to disagree with such a change.
>
> But I can't understand why Andrew sees the same problem _after_ this patch!
>
> And which patch removed the "put_user(nr, parent_tidptr)" chunk?
Aha. I am looking at
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.23/2.6.23-mm1/broken-out/pid-namespaces-allow-cloning-of-new-namespace.patch
Looks like the original patch was damaged somehow, it doesn't have the
"put_user(nr, parent_tidptr)" code.
Oleg.
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