I just tried to open new terminal window and this error message displayed:
Failed to open PTY: No space left on device
It seems I can't open terminal window anymore unless closing existing one (or reboot). I don't have any other problem in my system.
My system:
Debian Buster (xfce4)
Linux debian 4.19.0-18-amd64 #1 SMP Debian 4.19.208-1 (2021-09-29) x86_64 GNU/Linux
Storage usage:
Filesystem Size Used Avail Use% Mounted on
udev 3.9G 0 3.9G 0% /dev
tmpfs 786M 9.5M 776M 2% /run
/dev/sda4 320G 244G 62G 80% /
tmpfs 3.9G 315M 3.6G 9% /dev/shm
tmpfs 5.0M 4.0K 5.0M 1% /run/lock
tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup
tmpfs 786M 32K 786M 1% /run/user/1000
Inodes usage:
Filesystem Inodes IUsed IFree IUse% Mounted on
udev 978K 455 978K 1% /dev
tmpfs 982K 872 981K 1% /run
/dev/sda4 21M 7.2M 14M 36% /
tmpfs 982K 394 982K 1% /dev/shm
tmpfs 982K 5 982K 1% /run/lock
tmpfs 982K 17 982K 1% /sys/fs/cgroup
tmpfs 982K 34 982K 1% /run/user/1000
Pretty sure there isn't any problem with storage or inodes count. I have closed all opened programs, after that I can open a few more terminal window, but still getting the error message.