Comment 19 for bug 1673976

Ok, thank you for clearing that up.

I'm noticing in 4b4d4056bb154 this comment:

"...we just make explicit use of the fact the the child and parent run in the same VM, so the child can write an error code to a field of the posix_spawn_args struct instead of sending it through a pipe. To ensure that this mechanism really works, the parent initializes the field to -1 and the child writes 0 before execing."

So, if the child fail to execute, that error code field of the posix_spawn_args struct will remain -1. Would this ensure that QEMU return error in case of failing exec?

Best Regards,
Eric