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cmd/compile,runtime: found pointer to free object on linux-amd64-noopt #54907

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mknyszek opened this issue Sep 6, 2022 · 4 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. release-blocker
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@mknyszek
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mknyszek commented Sep 6, 2022

2022-09-02T20:14:40-3e11e61/linux-amd64-noopt
2022-09-02T19:22:26-0fda8b1/linux-amd64-noopt

Since I only saw this failure mode on the noopt builders, I figure it's some kind of compiler/runtime interaction.

CC @golang/compiler @golang/runtime

@mknyszek mknyszek added this to the Go1.20 milestone Sep 6, 2022
@mknyszek mknyszek added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Sep 6, 2022
@gopherbot gopherbot added the compiler/runtime Issues related to the Go compiler and/or runtime. label Sep 6, 2022
@bcmills
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bcmills commented Sep 6, 2022

greplogs -l -e '\nfatal error: found pointer to free object' --since=2022-08-01 --omit=js-wasm\|plan9-arm
2022-09-02T20:14:40-3e11e61/linux-amd64-noopt
2022-09-02T19:22:26-0fda8b1/linux-amd64-noopt
2022-08-22T11:49:45-761db3e/linux-amd64-noopt
2022-08-09T16:09:24-e1a8e0e/solaris-amd64-oraclerel

@bcmills
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bcmills commented Sep 14, 2022

greplogs -l -e '\nfatal error: found pointer to free object' --since=2022-09-06 --omit=js-wasm\|plan9-arm\|openbsd
2022-09-08T14:33:43-c263fa0/linux-amd64-noopt
2022-09-07T01:48:31-ba1ef54/linux-amd64-noopt

@bcmills
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bcmills commented Sep 14, 2022

Marking as release-blocker because this very much looks to be a Go 1.20 regression.

@gopherbot
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gopherbot commented Sep 19, 2022

Change https://go.dev/cl/431919 mentions this issue: runtime: make mSpanStateBox accessors nosplit

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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. release-blocker
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