Hi, Samuel Thibault skribis: > It seems that replying on the web interface didn't work, so replying > again here by mail. Weird. > Ludovic Courtès, le mer. 26 oct. 2022 19:20:07 +0200, a ecrit: >> ludo@childhurd ~$ mkfifo fifo >> ludo@childhurd ~$ ls -l fifo >> prw-r--r-- 1 ludo users 0 Oct 21 07:08 fifo >> ludo@childhurd ~$ df ./fifo >> df: Warning: cannot read table of mounted file systems: No such file or directory >> ^C > > Using coreutils 9.1, I am not getting the issue any more: > > € mkfifo foo > € ls -l foo > prw-r--r-- 1 samy samy 0 Nov 26 11:47 foo > € df ./foo > Filesystem Size Used Avail Use% Mounted on > - 20G 18G 1.8G 91% / Oh nice. This may be a side effect of Coreutils commit a3c04f8da14f0fe2a0561bf5562032b8ce5dafa9 (which made it in 9.0), which opens the file with O_NONBLOCK. >> Maybe /hurd/fifo needs to implement ‘trivfs_check_open_hook’ to avoid >> actually opening? > > I don't think it will change the behavior? trivfs_S_dir_lookup will call > trivfs_open after trivfs_check_open_hook anyway. Indeed, that was misguided, sorry for the confusion. Ludo’.