Re: [9front] [Bug] Mail fails to send attachments

[sirjofri <sirjofri+ml-9front@sirjofri.de>]

Hello,

I did some testing and this is what I found out:

upas/send does not fail. This is at least from what I found out using 
dtracy (no status error) and other tests. It seems only marshal fails.

Marshal doesn't always call send. If there's a pipefrom, it executes that 
instead. I tried using a minimal pipefrom (saving args and all stdin in 
file, to verify) and marshal still fails (I verified that send isn't 
called at all).

This could mean that the pipe is closed by marshal itself (by one of its 
child processes).

Marshal does fork pretty often. It even forks inside forks. I'll try to 
find out more about that tomorrow. I can imagine there's one child that 
basically closes the pipe when another child still wants to write.

I currently assume this happens somewhere in marshal.c:/^sendmail, but 
today I'm way to tired to find it.

I'll be available again tomorrow and hopefully we can find it.

sirjofri