GHC builds are broken

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GHC builds are broken

David Feuer-2
The Linux build has been failing with a segfault. It looks to me as though this started with 0e022e56b130ab9d277965b794e70d8d3fb29533: Turn EvTerm (almost) into CoreExpr.
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Re: GHC builds are broken

Joachim Breitner-2
Hi,

Am Freitag, den 26.01.2018, 21:49 -0500 schrieb David Feuer:
> The Linux build has been failing with a segfault. It looks to me as
> though this started with 0e022e56b130ab9d277965b794e70d8d3fb29533:
> Turn EvTerm (almost) into CoreExpr.

I have seen that, but it seemed to be intermittent. I saw a segfault in
the differential revision for that patch, but restarting the build made
it go away. Given that this patch is purely a refactoring in the type
checker, I believe the problem is somewhere else.

Did anyone observe the segfaults locally?

Joachim


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Re: GHC builds are broken

Joachim Breitner-2
Hi,

Am Freitag, den 26.01.2018, 22:34 -0500 schrieb Joachim Breitner:
> Did anyone observe the segfaults locally?

JFTR, neither of perf.haskell.org, Travis CI and CircleCI observe the
segfaults.

Joachim

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Re: GHC builds are broken

Ben Gamari-2
In reply to this post by David Feuer-2
David Feuer <[hidden email]> writes:

> The Linux build has been failing with a segfault. It looks to me as
> though this started with 0e022e56b130ab9d277965b794e70d8d3fb29533:
> Turn EvTerm (almost) into CoreExpr.

Yes, I know. I believe this is just due to a long-standing crash when
the RTS is unable to allocate heap. Unfortunately I had trouble
reproducing it earlier in the week. I'll try to have another look today.

Cheers,

- Ben

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