Hi Kostik, 2012/10/23 Konstantin Belousov <[email protected]>: > This is reproducable with the cat(1) as well. The telling part is that > the backgrounded process stays on the "ttyin" cv. The code for e.g. > tty read currently is structured as follows: > check for background process reading from CTTY, send SIGTTYIN > loop { > sleep waiting for input > process input > } > The problem is that the SIGCONT does not remove the sleeping process from > the sleep queue, so the sleep is not interrupted with error. Instead, the > process is woken up later when input is available. > > Old tty code did the recheck for background state inside the loop after > the sleep.
Exactly. Was just debugging this as well and came to the same conclusion. Will try to come up with a decent patch tomorrow evening. Thanks for reporting the issue! -- Ed Schouten <[email protected]> _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[email protected]"
