[Bug 688541] Re: race condition on shutdown (leads to corrupted fs)

[Clint Byrum]

Ante, good eyes there. That statement is a little misleading, that "if
they're still running, they're supposed to be", as this assumes there
was an event somewhere between the running system, and runlevel [016],
which to my knowledge, there isn't.

I'm a little confused as to why umountfs is still running as part of rc,
and not in an upstart job. I'm pretty sure actually, that this is
related to bug #616287 , which I originally thought was mountall's
fault, but now it seems is in fact sysvinit's.

In any case, one solution could be to have umountfs emit 'unmounting-
filesystems' before it starts, and then change 'stop on runlevel [016]'
to 'stop on unmounting-filesystems'. If I understand initctl correctly,
it will wait for all of the triggered stops to complete before
continuing.

I also think that we should look at abstracting the events a bit more
for generic services so job writers don't have to become boot experts to
know when to start on / stop on.


Adding sysvinit task as well.

** Also affects: sysvinit (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/688541

Title:
  race condition on shutdown (leads to corrupted fs)