On Thu, 2015-03-26 at 08:57 +, Richard W.M. Jones wrote:
> Is pthread_create used even for the main thread in the process (I
> thought the kernel created that). In any case threads aren't being
> used explicitly by this process.
>
> Anyway I guess the guard page is just a hole that causes the
On Wed, Mar 25, 2015 at 07:57:25PM -0500, Steven Munroe wrote:
> On Wed, 2015-03-25 at 19:45 +, Richard W.M. Jones wrote:
> > On Wed, Mar 25, 2015 at 06:30:25PM +, David Woodhouse wrote:
> > > If the compiler is single-threaded, and increasing the stack ulimit
> > > fixes the problem, that
On Wed, Mar 25, 2015 at 08:03:31PM +, David Woodhouse wrote:
> On Wed, 2015-03-25 at 19:45 +, Richard W.M. Jones wrote:
> > On Wed, Mar 25, 2015 at 06:30:25PM +, David Woodhouse wrote:
> > > If the compiler is single-threaded, and increasing the stack ulimit
> > > fixes the problem, th
On Wed, 2015-03-25 at 19:45 +, Richard W.M. Jones wrote:
> On Wed, Mar 25, 2015 at 06:30:25PM +, David Woodhouse wrote:
> > If the compiler is single-threaded, and increasing the stack ulimit
> > fixes the problem, that implies that the default stack ulimit is less
> > than the 8MiB-64KiB
On Wed, Mar 25, 2015 at 06:30:25PM +, David Woodhouse wrote:
> If the compiler is single-threaded, and increasing the stack ulimit
> fixes the problem, that implies that the default stack ulimit is less
> than the 8MiB-64KiB that it takes to reach the guard page...
Just so I'm clear, is the
On Wed, Mar 25, 2015 at 06:30:25PM +, David Woodhouse wrote:
> On Tue, 2015-03-24 at 11:35 -0500, Steven Munroe wrote:
> > I am not sure how ocaml is generating code for PPC64, you could look in
> > to split stack support, but at this time GCC does not implement split
> > stack.
> ...
On Tue, 2015-03-24 at 11:35 -0500, Steven Munroe wrote:
> I am not sure how ocaml is generating code for PPC64, you could look in
> to split stack support, but at this time GCC does not implement split
> stack.
... for PPC64.
I wouldn't want to do it in OCaml before it's supported in GCC
On Wed, Mar 25, 2015 at 05:54:58PM +, Richard W.M. Jones wrote:
> OCaml uses its own code generator. However the description of
> -fsplit-stack from GCC sounds interesting. Are there any more details
> of how exactly it works? Does it catch the segfault from hitting the
> guard page and do s
On Tue, Mar 24, 2015 at 11:35:30AM -0500, Steven Munroe wrote:
> On Tue, 2015-03-24 at 12:19 +, Richard W.M. Jones wrote:
> > For the OCaml packages on ppc64/ppc64le, we keep having bugs like this
> > one: https://bugzilla.redhat.com/show_bug.cgi?id=1204876
> >
> > The OCaml compiler is quite
