Validate fails: Var/Type length mismatch: [] [s{tv a15I} [tv]]

Iavor Diatchki iavor.diatchki at
Fri May 31 19:14:23 CEST 2013


OK, I've pushed my change again, please let me know if you notice any more

The `ghcpkg01` test runs fine if I run it on its own:   make CLEANUP=1
TEST=ghcpkg01 fast

I rerun validate (uinsg: CPUS=8 ./validate) and I got a different cabal
related failure:

 Unexpected failures:
   cabal  shadow [bad stderr] (normal)

Again, it passes when I run it on its own:
make CLEANUP=1 TEST="cabal  shadow" fast

So it seems that there is something that keeps changing... I wonder if it
might be some missing dependency, so when you run things in parallel
sometimes they fail?


On Fri, May 31, 2013 at 8:22 AM, Ian Lynagh <ian at> wrote:

> Hi Iavor,
> On Thu, May 30, 2013 at 07:59:07PM -0700, Iavor Diatchki wrote:
> >
> > I don't think that these are related to my change, but I don't really
> know,
> > so I am not going to push the fix just yet.  Could you please advice on
> how
> > to  investigate further?
> For ghcpkg01, if you have a testlog from a validate run then you can
> search for the test in that. Otherwise you can do
>     cd testsuite/tests
>     make CLEANUP=1 TEST=ghcpkg01 fast
> if you were doing a --fast validate, or
>     cd testsuite/tests
>     make CLEANUP=1 TEST=ghcpkg01 fast BINDIST=YES
> for a normal valdiate, and see how it's failing.
> > PS: Is there some sort of a flag I could set in so that it
> always
> > builds with warnings and core lint?  In some of my GHC trees this seems
> to
> > happen, and in others it does not, and for me it'd be quite helpful if it
> > always did.
> You can see what settings validate uses in mk/, and
> copy any that you want into mk/
> In particular, these add lint flags:
>     GhcStage2HcOpts += -O -dcore-lint
>     GhcLibHcOpts    += -O -dcore-lint
> Thanks
> Ian
> --
> Ian Lynagh, Haskell Consultant
> Well-Typed LLP,
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