Re: [Qemu-devel] [PATCH 4/4] qemu-nbd: do not start the block layer in the parent

[Paolo Bonzini]

On 10/28/2011 02:16 PM, Pierre Riteau wrote:
> Yes, it would be better if we could have error output on stderr. Now,
> "simple" errors such as a missing image file (or wrong path to the
> image) are reported to syslog instead. It could be the source of some
> headaches...
>
> Is there a way we could have the child send the error to the parent
> over a pipe and have the parent print it on stderr?

A way could be to change the fork() into a separate thread, so that you 
can daemonize as soon as you accept the socket rather than having to do 
it early.

Paolo