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active translators stdout/stderr

From: Samuel Thibault
Subject: active translators stdout/stderr
Date: Sun, 14 Feb 2016 22:09:37 +0100
User-agent: Mutt/1.5.21+34 (58baf7c9f32f) (2010-12-30)


We have various issues with the active translators' stdout/stderr:

- When mounting /proc from /etc/init.d/rc, stdout/stderr is closed, and
  thus as soon as e.g. mtab reports a warning, it gets SIGLOST and dies.
- When mounting the cdrom image from debian installer scripts, the
  script is not considered finished since the isofs translator is still
  running and possibly emitting output.

So, what should we do about stdout/stderr output?  Do we require their
output to be explicitly redirected by callers of mount and settrans?
In the mount case, people used to Linux will not think of doing it, so
perhaps we need it to do it for the user?


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