# Workaround? Tried once, works. TL;DR: reading the slave pts from another process unfreezes and allows continued operation
cd /proc/24621/fd ls -al total 0 dr-x------ 2 stephane stephane 0 avril 5 16:39 . dr-xr-xr-x 9 stephane stephane 0 avril 5 15:13 .. lrwx------ 1 stephane stephane 64 avril 5 16:56 0 -> /dev/pts/8 lrwx------ 1 stephane stephane 64 avril 5 16:56 1 -> /dev/pts/8 lrwx------ 1 stephane stephane 64 avril 5 16:39 2 -> /dev/pts/8 lrwx------ 1 stephane stephane 64 avril 5 16:56 3 -> /dev/ptmx lrwx------ 1 stephane stephane 64 avril 5 16:56 4 -> /dev/pts/20 lrwx------ 1 stephane stephane 64 avril 5 16:56 5 -> anon_inode:[signalfd] l-wx------ 1 stephane stephane 64 avril 5 16:56 6 -> /home/stephane/typescript (deleted) So, pts/8 is the master, pts/20 is the slave. echo foo >/dev/pts/8 -> This shows "foo" in the terminal window. head -n 1 /dev/pts/8 ^C This blocks my shell, so I do Ctrl-C to regain. echo foo >/dev/pts/20 This blocks my shell, so I do Ctrl-C to regain. ^Cbash: echo: erreur d'écriture : Appel système interrompu This one is interesting: head -n 1 /dev/pts/20 It does not block, and works around the bug immediately. I'll try again. ** Tags added: has-workaround regression-release reproducible -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1558236 Title: /usr/bin/script freezes and eats all CPU, has to be killed, which kills shell and programs inside To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/util-linux/+bug/1558236/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
