Segmentation faults of bootstrap compiler?

Hello everyone, Earlier this week there was a commit (perhaps ef26182e2014b0a2a029ae466a4b121bf235e4e4) which appears to trigger segmentation faults of the stage 0 compiler (GHC 8.2.1) during validation on Harbormaster (e.g. [1]). Unfortunately I've been unable to reproduce this reliably. Has anyone else observed this in their own environment? Cheers, - Ben [1] https://phabricator.haskell.org/harbormaster/build/35554/

Ben Gamari
Hello everyone,
Earlier this week there was a commit (perhaps ef26182e2014b0a2a029ae466a4b121bf235e4e4) which appears to trigger segmentation faults of the stage 0 compiler (GHC 8.2.1) during validation on Harbormaster (e.g. [1]). Unfortunately I've been unable to reproduce this reliably. Has anyone else observed this in their own environment?
I have been able to collect a core dump of the crashing compiler and have opened #14329 to track the issue. Cheers, - Ben
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Ben Gamari