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x/build: get more coverage with the ssacheck builder #36756

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josharian opened this issue Jan 24, 2020 · 1 comment
Open

x/build: get more coverage with the ssacheck builder #36756

josharian opened this issue Jan 24, 2020 · 1 comment

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@josharian
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@josharian josharian commented Jan 24, 2020

The ssacheck builder currently builds only amd64, and with a fixed random seed.

We should improve on both dimensions.

  • CL 216418 lets us provide a random seed. We could generate the random seed and print it to stdout before using it, so that any failure will be reproducible from the log.
  • We should either run on all architectures, or pick one at random each time from go tool dist list (and log it, for reproducibility).

I suspect that doing both of these things is pretty easy, and it'd get us extra test coverage, so it'd be nice to do soon. This would have caught both #36723 and #36755.

cc @cherrymui @randall77 @dmitshur @bradfitz

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