Bogus error messages during aws-sdk-cpp initialization

[PaavoHelde]

Continuing the discussion aws/aws-sdk-cpp#3404 here as suggested by sbiscigl.

In short, after upgrading our aws-cpp-sdk version to the tip of the main branch, in one build we started to see some new log messages from InitAPI() which were not there before and broke our unit tests, about files in /sys/devices/virtual/dmi (our Raspberry Pi box does not have such directory). The library seems to work fine, it's just the log messages.

The messages apparently come from aws_system_environment_load_platform_impl() in aws-sdk-cpp/crt/aws-crt-cpp/crt/aws-c-common/source/linux/system_info.c which has the non-existing paths hard-coded. AFAIK not having these files in a Linux system is not an error, so lack of the should not be logged as errors, what do you think? Should I open a bug?

Error messages in the log:

[ERROR] 2025-05-05 08:39:32.159 common-io [547798657344] static: Failed to open file. path:'/sys/devices/virtual/dmi/id/sys_vendor' mode:'rb' errno:2 aws-error:44(AWS_ERROR_FILE_INVALID_PATH)
[ERROR] 2025-05-05 08:39:32.159 common-io [547798657344] static: Failed to open file. path:'/sys/devices/virtual/dmi/id/product_name' mode:'rb' errno:2 aws-error:44(AWS_ERROR_FILE_INVALID_PATH)

System info:

uname -a
Linux raspberrypi 6.1.21-v8+ https://github.com/aws/aws-sdk-cpp/issues/1642 SMP PREEMPT Mon Apr 3 17:24:16 BST 2023 aarch64 GNU/Linux
ls /sys/devices/virtual/
bcm2835-gpiomem bdi block devlink dma_heap graphics input leds mem misc net sound thermal tty vc vc-mem vtconsole workqueue
cat /etc/debian_version
11.11

[bretambrose]

I wouldn't consider this a bug. In general I would avoid having a unit test that depends on the behavior of the logging emitted by a third party library.

[PaavoHelde]

Thanks for the reply! The only thing I object is the [ERROR] tag in the messages, if it were [WARN] or [INFO] it would be fine. But anyway, if this is not considered a bug, I will not bother writing a bug report. You are right in that one cannot control third-party libraries.