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The shell knows that ssh died and can reset the terminal. Tracing a bash shell while I kill a child ssh shows that it makes several ioctl() calls. --- SIGCHLD (Child exited) @ 0 (0) --- ioctl(255, TIOCSPGRP, [52631]) = 0 ioctl(0, TIOCGWINSZ, {ws_row=25, ws_col=147, ws_xpixel=902, ws_ypixel=329}) = 0 ioctl(0, TIOCSWINSZ, {ws_row=25, ws_col=147, ...


I do not understand what you are really asking but answer is probably: There is supposed to be no difference between filesystems. Syscalls and VFS are filesystem-agnostic. POSIX standard defines most of what file operations do, as far as stat fields are concerned, thus defining when and how atime alike fields are updated. That said, filesystems have their ...

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