Ouh, I bet I know what's happening: You are using a concrete Context implementation that defines its methods on a value receiver, but pass it in as a nil-pointer: https://go.dev/play/p/JH9MxwvmTw7 That way, the panic happens in autogenerated code (the implicit promoted method from the value-type to the pointer-type) which then panics due to a nil-pointer dereference. The panic message should then actually tell you exactly that, though.
On Fri, May 12, 2023 at 9:32 AM Axel Wagner <axel.wagner...@googlemail.com> wrote: > What does the panic say? If it says "stack overflow", then yes, that's > likely an infinite recursion. If not, then, no. My guess is, that it says > "nil-pointer dereference". > > The `<autogenerated>` part probably means this is due to embedding. That > is, the `Err` method on `valueCtx` is promoted from an embedded Context: > https://cs.opensource.google/go/go/+/refs/tags/go1.20.4:src/context/context.go;l=599 > If that context was `nil` or otherwise invalid, that would explain why the > panic happens. Though I'm not sure how that would happen, unless you use > `unsafe` somewhere. > > On Fri, May 12, 2023 at 5:03 AM Andrew Athan <andrew...@gmail.com> wrote: > >> goroutine 1299607 [runnable]: >> context.(*valueCtx).Err(0xc00a52c3c0?) >> <autogenerated>:1 +0x3e >> context.(*valueCtx).Err(0x48860a?) >> <autogenerated>:1 +0x2a >> ... repeats many many many times ... >> ...additional frames elided... >> created by >> ....one_of_my_functions() >> somefile.go:2092 +0x4a5 >> >> >> What is going on here? is this likely to be an infinite recursion or >> similar within the context implementation or is this a normal thing to see? >> >> -- >> 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/095c81e9-15c2-4c27-b913-f85a16ee4968n%40googlegroups.com >> <https://groups.google.com/d/msgid/golang-nuts/095c81e9-15c2-4c27-b913-f85a16ee4968n%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- 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/CAEkBMfF%2B3s-A78%3D2a0BWGgds5gSqRQLbTdKwx069Eag%2B1TXr5g%40mail.gmail.com.
