panic: unaligned 64-bit atomic operation

[jobinthompu]

Bug Description

While using linux 386 version of Auth Proxy I got below error and auth proxy got terminated unexpectedly.

Example code (or command)

// example

Stacktrace

[jobigeor@confluent ~]$ psql -h 127.0.0.1 -U ccloud -W -d alloy -p 6000
Password: 
[projects/xxx/locations/us-central1/clusters/confluent-alloy/instances/confluent-alloy-instance] accepted connection from 127.0.0.1:41526
panic: unaligned 64-bit atomic operation

goroutine 43 [running]:
runtime/internal/atomic.panicUnaligned()
        /usr/local/go/src/runtime/internal/atomic/unaligned.go:8 +0x2d
runtime/internal/atomic.Xadd64(0x906413c, 0x1)
        /usr/local/go/src/runtime/internal/atomic/atomic_386.s:125 +0x11
cloud.google.com/go/alloydbconn.(*Dialer).Dial.func3()
        /workspace/vendor/cloud.google.com/go/alloydbconn/dialer.go:206 +0x6e
created by cloud.google.com/go/alloydbconn.(*Dialer).Dial
        /workspace/vendor/cloud.google.com/go/alloydbconn/dialer.go:205 +0xc83
psql: error: server closed the connection unexpectedly
        This probably means the server terminated abnormally
        before or while processing the request.
[1]+  Exit 2                  sudo ./alloydb-auth-proxy projects/xxx/locations/us-central1/clusters/confluent-alloy/instances/confluent-alloy-instance --port 6000
[jobigeor@confluent ~]$ 

How to reproduce

1. wget https://storage.googleapis.com/alloydb-auth-proxy/v0.1.0/alloydb-auth-proxy.linux.386 -O alloydb-auth-proxy
2. follow rest of the steps in documentation

Environment

1. OS type and version: Linux 3.10.0-1160.62.1.el7.x86_64 chore: import Cloud SQL Auth Proxy #1 SMP Tue Apr 5 16:57:59 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
2. Proxy version: alloydb-auth-proxy version 0.1.0+linux.386

[kurtisvg]

I think this is the classic gotcha of the atomic sync package.

So we need to:

1. Update the struct to be 64-bit aligned (or stop using atomic.sync)
2. Add tests to use 386 compilations to prevent regressions

[VexpoCity]

Hello @jobinthompu

I was having the same problem, I succeeded to connect. That auth-proxy should be installed on linux vm at google compute cloud. Choose default VPC while installing. To iinstall proxy on VM, follow instructions at documentation. Choose linux amd64 for linux version of client (as most linuxes are amd64 nowadays). Connect with access-token. If you have troubles, reach me at gdarcan@gmail.com

wget https://storage.googleapis.com/alloydb-auth-proxy/v0.1.0/alloydb-auth-proxy.linux.amd64 -O alloydb-auth-proxy