Re: s6-rc - odd warn logging and a best practices question

From: Colin Booth <>
Date: Thu, 20 Aug 2015 22:01:08 -0700

On Thu, Aug 20, 2015 at 1:16 PM, Colin Booth <> wrote:
> By the way, I've found a maybe-bug that, if real, is pretty severe.
> `s6-rc -d change all ; some stuff ; s6-rc -u change all' has caused my
> s6-init + s6-rc testbed system to remove the control pipe for my pid 1
> s6-svscan. I need to make sure it wasn't something I did between
> things, and to make sure it wasn't mucked up handling in various
> scripts that I was running. I'm at work right now so I can't test it
> out, but sometime in the next day or so I should have the cycles to
> test it out.
Not a bug in s6-rc or s6 but in some Debian script somewhere. Some
single-user script appears to re-mount all mount points, which has the
net result of causing all file handles into tmpfs mounts to go stale.
That's what's breaking s6-svscan. Once I isolate it, I'll see if I can
avoid calling that script, and if I have to I'll see about moving its
execution somewhere safe.

I am learning way more about the complexities of the distro boot cycle
than I'd ever expected to this week.


"If the doors of perception were cleansed every thing would appear to
man as it is, infinite. For man has closed himself up, till he sees
all things thru' narrow chinks of his cavern."
  --  William Blake
Received on Fri Aug 21 2015 - 05:01:08 UTC

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