Thanks Jason! After more head banging in trying to narrow things down and taking yet another look through the existing issue reports you linked to I was able to find the fix.
We were using a struct which had a field with type `strings.Builder`. The strings.Builder docs <https://pkg.go.dev/strings#Builder> state `Do not copy a non-zero Builder` as explained in this comment: golang/go#47276 (comment) <https://github.com/golang/go/issues/47276#issuecomment-882598415>. Switching to a string fixed the issue. While the strings.Builder field was never non-zero in our use case, there might have been some race condition of sorts where it could become non-zero by the time the garbage collector was invoked since it was not always crashing right away. *Take Away:* It would be great of the linters could warn about this, or if there could be a better error messages around this. On Friday, July 19, 2024 at 6:56:37 PM UTC-7 Jason E. Aten wrote: > There are a number of open bugs that mention the same error that you are > seeing > > > https://github.com/golang/go/issues?q=is%3Aissue+is%3Aopen+fatal+error%3A+found+bad+pointer+in+Go+heap+%28incorrect+use+of+unsafe+or+cgo%3F%29 > > So you could try seeing if the issue reproduces with a different go > version, say, go 1.19. (per https://github.com/golang/go/issues/64781 ) > > > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/76cb70f3-a6d5-4210-ac74-b546bfb98ca8n%40googlegroups.com.