E08 during memory read for packet

[dhoizner]

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Note: Please include any substantial examples (debug session output,
stacktraces, etc) as linked gists.

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1. What version of Delve are you using (dlv version)?

❯ dlv version
Delve Debugger
Version: 1.21.2
Build: $Id: 98f8ab2662d926245917ade2f2bb38277315c7fc $

2. What version of Go are you using? (go version)?

❯ go version
go version go1.21.1 darwin/amd64

3. What operating system and processor architecture are you using?

macOS Sonoma 14.1 amd64

4. What did you do?
   When trying to debug a test that contains a struct with a non-pointer object that has a function with a pointer receiver defined, interacting with that object causes all locals to return unreadable could not read string pointer protocol error E08 during memory read for packet.

Steps:

b TestHi:13
c
p c

5. What did you expect to see?
   I expected to able to print values for locals.
6. What did you see instead?
   I see all values being returned as error E08.

Log file and files to reproduce error are here.

Changing Thing to be *Thing on line 11 resolves the error.

[aarzilli]

This is a bug in the compiler, which was fixed (I think unintentionally) by 505e50b1e34cdf6dff29615a076e26fb0780d10d in go1.22

cc @dr2chase, you might be interested in this. Do you think something should be done for go1.21, a backport seems unlikely to me.

[aarzilli]

PS. the associated pull request has a reduced reproduction for this bug: #3553

[dhoizner]

This is a bug in the compiler, which was fixed (I think unintentionally) by 505e50b1e34cdf6dff29615a076e26fb0780d10d in go1.22

cc @dr2chase, you might be interested in this. Do you think something should be done for go1.21, a backport seems unlikely to me.

thanks for digging into this @aarzilli!