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hash/maphash: TestSmhasherAvalanche failures #60170

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gopherbot opened this issue May 12, 2023 · 5 comments
Closed

hash/maphash: TestSmhasherAvalanche failures #60170

gopherbot opened this issue May 12, 2023 · 5 comments
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compiler/runtime Issues related to the Go compiler and/or runtime. NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.

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@gopherbot
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#!watchflakes
post <- pkg == "hash/maphash" && test == "TestSmhasherAvalanche"

Issue created automatically to collect these failures.

Example (log):

--- FAIL: TestSmhasherAvalanche (18.56s)
    smhasher_test.go:393: bad bias for bytes2 bit 2 -> bit 41: 45744/100000
    smhasher_test.go:393: bad bias for bytes2 bit 4 -> bit 0: 46091/100000
    smhasher_test.go:393: bad bias for bytes2 bit 6 -> bit 7: 46074/100000

— watchflakes
@gopherbot gopherbot added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label May 12, 2023
@gopherbot
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Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "hash/maphash" && test == "TestSmhasherAvalanche"
2023-05-12 20:17 windows-amd64-longtest go@cce67690 hash/maphash.TestSmhasherAvalanche (log) 
--- FAIL: TestSmhasherAvalanche (18.56s)
    smhasher_test.go:393: bad bias for bytes2 bit 2 -> bit 41: 45744/100000
    smhasher_test.go:393: bad bias for bytes2 bit 4 -> bit 0: 46091/100000
    smhasher_test.go:393: bad bias for bytes2 bit 6 -> bit 7: 46074/100000

— watchflakes

@bcmills bcmills added the compiler/runtime Issues related to the Go compiler and/or runtime. label May 13, 2023
@cuonglm
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cuonglm commented May 16, 2023

@randall77 any idea on how this test is now failed?

@gopherbot
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Change https://go.dev/cl/495415 mentions this issue: hash/maphash: weaken avalanche test a bit

@gopherbot
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Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "hash/maphash" && test == "TestSmhasherAvalanche"
2023-10-30 17:08 linux-386-longtest go@c2665878 hash/maphash.TestSmhasherAvalanche (log) 
--- FAIL: TestSmhasherAvalanche (91.29s)
    smhasher_test.go:393: bad bias for bytes2 bit 15 -> bit 19: 58325/100000

— watchflakes

@gopherbot gopherbot reopened this Oct 30, 2023
@gopherbot
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Change https://go.dev/cl/538655 mentions this issue: hash/maphash: weaken avalanche test a bit more

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compiler/runtime Issues related to the Go compiler and/or runtime. NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
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@cuonglm @bcmills @gopherbot