Golang runtime: heap mspan limit is set too late, causing data race between span allocation and conservative scanning [1.24 backport]

@mknyszek requested issue #74288 to be considered for backport to the next 1.24 minor release.

@gopherbot Please open backport issues for Go 1.23 and Go 1.24.

This problem can cause rare random crashes in the runtime with no workaround.

Comment From: gopherbot

Change https://go.dev/cl/684079 mentions this issue: [release-branch.go1.24] runtime: set mspan limit field early and eagerly

Comment From: gopherbot

Closed by merging CL 684079 (commit 6b51660c8c3540026ced21146821ddc64b81c358) to release-branch.go1.24.