netipmid consumes much CPU when obmc-console socket is shutdown

[Heyi Guo]

Hi all,

Any comments?

Thanks,

Heyi

在 2022/1/5 上午10:25, Heyi Guo 写道:
> Hi all,
>
> We found netipmid will consumes much CPU when SOL is activated but 
> obmc-console socket is shutdown by some reason (can simply shutdown 
> obmc-console by systemctl stop ....).
>
> After obmc-console socket is closed, the async_wait() in 
> startHostConsole() is always triggered, and consoleInputHandler() will 
> read empty data (readSize == 0 and readDataLen == 0), but all the ec 
> condition check will NOT hit!
>
> From boost reference, it is said the function read_some() will:
>
> The function call will block until one or more bytes of data has been 
> read successfully, or until an error occurs.
>
> Is it a bug of boost? Or is there anything wrong in ipmi-net? And how 
> can we make netipmid more robust on obmc-console socket shutdown?
>
> Thanks,
>
> Heyi