OK, PTAL. I'm sure it's not done but it's better. Now, you do stuff like this echo strace > /proc/pid/ctl or straceme (no inheritance, not implemented not to do that yet) straceoff
then cat /proc/pid/strace to get the records comments welcome On Sun, Jan 31, 2016 at 2:27 PM ron minnich <[email protected]> wrote: > > That was an extremely helpful review, thanks. > > The reason to qhangup when the cclose() hits 1 is that there are only two > ways that happens I can think of: > 1. something is still reading the /proc/pid/strace file, but there's > nothing more to trace -- in this case, we need a qhangup > 2. strace command is gone, and there is a proc running out there. In this > case there's no harm done with the qhangup since the traced process has no > need to write to it. > > Agreed that it sucks and needs to be done better; I just didn't think of > anything :-) > > We need to talk about this, it gets a tad tricky when the tracer forks and > the child inherits the fd. > > But, above all, I want this to work: > > cat /proc/pid/strace > needs to exit correctly when pid and all its kids are gone. This works > with the current kludge. > > ron > -- You received this message because you are subscribed to the Google Groups "Akaros" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. For more options, visit https://groups.google.com/d/optout.
