[1.34.1] Maximum call stack size of 8339456 bytes (zend.max_allowed_stack_size - zend.reserved_stack_size) reached. Infinite recursion?

[czoIg]

Environment details

• OS: Debian Bullseye
• PHP version: 8.3
• Package name and version: google/gax:v1.34.1 (1.34.0 was working without errors)

Steps to reproduce

1. Error seems a little random, but occurs always at the same place. I couldn't reproduce it myself, because for many thousands requests, there's like 5-10 errors per day.

Code example

Exception trace

{
    "class": "Error",
    "message": "Maximum call stack size of 8339456 bytes (zend.max_allowed_stack_size - zend.reserved_stack_size) reached. Infinite recursion?",
    "code": 0,
    "file": "/app/vendor/google/gax/src/CredentialsWrapper.php:247",
    "trace": [
        "/app/vendor/grpc/grpc/src/lib/UnaryCall.php:43",
        "/app/vendor/grpc/grpc/src/lib/BaseStub.php:295",
        "/app/vendor/grpc/grpc/src/lib/BaseStub.php:545",
        "/app/vendor/google/gax/src/Transport/GrpcTransport.php:228",
        "/app/vendor/google/gax/src/GapicClientTrait.php:641",
        "/app/vendor/google/gax/src/Middleware/CredentialsWrapperMiddleware.php:58",
        "/app/vendor/google/gax/src/Middleware/FixedHeaderMiddleware.php:68",
        "/app/vendor/google/gax/src/Middleware/RetryMiddleware.php:89",
        "/app/vendor/google/gax/src/Middleware/RequestAutoPopulationMiddleware.php:73",
        "/app/vendor/google/gax/src/Middleware/OptionsFilterMiddleware.php:61",
        "/app/vendor/google/gax/src/GapicClientTrait.php:606",
        "/app/vendor/google/cloud-pubsub/src/V1/Gapic/PublisherGapicClient.php:909",
        "/app/vendor/google/cloud-core/src/ExponentialBackoff.php:97",
        "/app/vendor/google/cloud-core/src/GrpcRequestWrapper.php:135",
        "/app/vendor/google/cloud-core/src/GrpcTrait.php:81",
        "/app/vendor/google/cloud-pubsub/src/Connection/Grpc.php:284",
        "/app/vendor/google/cloud-pubsub/src/Topic.php:527",
        "/app/vendor/google/cloud-pubsub/src/Topic.php:482",
        ... (app-specific trace)
    ]
}