gRPC CreateHeaderFields probe fails with permission denied

[vreynolds]

Describe the bug

Running a sample gRPC app with go auto-instrumentation causes the app to crashloop, instrumentation fails with a permission error.

Environment

• OS: osx ventura 13.3.1, k8s 1.25.4
• Go Version: 1.20
• Version: 5.15.49-linuxkit

To Reproduce

Steps to reproduce the behavior:

1. Using the example
2. Create the deployments in k8s cluster following readme
3. Notice the server and client pods are crashlooping
4. Check the logs for an instrumentation pod and observe the logs:

2023-04-14 19:40:06 {"level":"error","ts":1681515606.0069542,"caller":"cli/main.go:88","msg":"error while running instrumentors","error":"field UprobeHttp2ClientCreateHeaderFields: program uprobe_Http2Client_CreateHeaderFields: load program: permission denied: 979: (71) r7 = *(u8 *)(r7 +0): R0=inv(id=51) R1_w=inv(id=0,umax_value=65535,var_off=(0x0; 0xffff)) R2_w=inv(id=0,umax_value=255,var_off=(0x0; 0xff)) R3_w=inv(id=0,umax_value=16777215,var_off=(0x0; 0xffffff)) R4_w=invP3 R5_w=fp-204 R6_w=fp-381 R7_w=map_value(id=0,off=0,ks=4,vs=16,umax_value=15,var_off=(0x0; 0xf)) R8_w=map_value(id=0,off=0,ks=4,vs=16,umax_value=15,var_off=(0x0; 0xf)) R9=inv(id=0,umax_value=1099511627775,var_off=(0x0; 0xffffffffff)) R10=fp0 fp-48=???mmmmm fp-56=mmmmmmmm fp-64=mmmmmmmm fp-72=mmmmmmmm fp-80=mmmmmmmm fp-96=mmmmmmmm fp-104=mmmmmmmm fp- (truncated, 1249 line(s) omitted)","stacktrace":"main.main\n\t/app/cli/main.go:88\nruntime.main\n\t/usr/local/go/src/runtime/proc.go:250"}

Expected behavior

The app runs and is instrumented.

[MrAlias]

This was not reproducible with the keyval version of this code, so the cause is likely in the diff between this and that project.

[MrAlias]

The main diff between this and the keyval code is ARM support. So this might be related to that feature addition. Investigation needed.