runtime: crash in sbrk mode #53887
Labels
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.
Milestone
What version of Go are you using (
go version
)?tip (f71f3d1)
Does this issue reproduce with the latest release?
Yes, reproducible with Go 1.18.
Go 1.17 seems to have fewer failures but can also fail.
What operating system and processor architecture are you using (
go env
)?darwin/amd64
What did you do?
Run all.bash with
GODEBUG=sbrk=1
.What did you expect to see?
Mostly work. Some test failures like GC accounting tests are reasonably expected.
Runtime crash is not expected (maybe except OOM, as it doesn't recycle memory in sbrk mode).
What did you see instead?
Runtime crash, which doesn't look like OOM.
A few packages' tests with similar stack traces, at least from
bulkBarrierPreWriteSrcOnly
above.cc @mknyszek @golang/runtime
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