Where do you find this hanging pty? Seems like the wording makes me confused. Maybe you mean "It is possible to hang pty device. In that case, ..."
Thanks for your reply, I will correct messages like this:
"It is possible to hang pty devices in this case, the reader was blocking at epoll on master side, the writer was ..."
Bagas Sanjaya bagasdotme@gmail.com 于2023年4月4日周二 10:55写道：
On 4/4/23 09:49, Bagas Sanjaya wrote:
On Fri, Mar 17, 2023 at 10:24:07AM +0800, juanfengpy@gmail.com wrote:
We have met a hang on pty device, the reader was blocking at epoll on master side, the writer was sleeping at wait_woken inside n_tty_write on slave side, and the write buffer on tty_port was full, we found that the reader and writer would never be woken again and blocked forever.
Where do you find this hanging pty? Seems like the wording makes me confused. Maybe you mean "It is possible to hang pty device. In that case, ..."
Oops, I forgot to Cc: LKML.
-- An old man doll... just what I always wanted! - Clara