Re: wait until swapoff is actually finished (it returns too early)?

From	Mike Castle <dalgoda+debian@gmail.com>
Newsgroups	linux.debian.user
Subject	Re: wait until swapoff is actually finished (it returns too early)?
Date	2024-08-23 05:40 +0200
Message-ID	<Jetjz-6Wkr-1@gated-at.bofh.it> (permalink)
References	(4 earlier) <Jeieu-6OGL-23@gated-at.bofh.it> <JejNf-6PJA-3@gated-at.bofh.it> <JelP3-6QTL-3@gated-at.bofh.it> <JelP3-6QTL-1@gated-at.bofh.it> <Jetjz-6Wkr-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Thu, Aug 22, 2024 at 4:31 PM David Wright <deblis@lionunicorn.co.uk> wrote:
> Irrespective of the time taken, that could trigger the OOM killer,
> couldn't it. Very risky, unless you're using two swaps as mentioned.

I was actually surprised to see this happen in a test right now.  I
*thought* that swapoff() would fail if reduce the available memory to
below current usage.

But indeed, the OOM Killer not only killed my test program, it took
out the swapoff command for good measure!

mrc

Thread

wait until swapoff is *actually* finished (it returns too early)? Thorsten Glaser <tg@debian.org> - 2024-08-21 02:00 +0200
  Re: wait until swapoff is *actually* finished (it returns too early)? Roberto C. Sánchez <roberto@debian.org> - 2024-08-21 02:10 +0200
    Re: wait until swapoff is *actually* finished (it returns too early)? Greg Wooledge <greg@wooledge.org> - 2024-08-21 02:20 +0200
      Re: wait until swapoff is *actually* finished (it returns too early)? Erwan David <erwan@rail.eu.org> - 2024-08-21 08:50 +0200
        Re: wait until swapoff is *actually* finished (it returns too early)? Greg Wooledge <greg@wooledge.org> - 2024-08-21 13:40 +0200
          Re: wait until swapoff is *actually* finished (it returns too early)? Alain D D Williams <addw@phcomp.co.uk> - 2024-08-21 14:20 +0200
        Re: wait until swapoff is *actually* finished (it returns too early)? Alain D D Williams <addw@phcomp.co.uk> - 2024-08-21 13:50 +0200
      Re: wait until swapoff is *actually* finished (it returns too early)? Roberto C. Sánchez <roberto@debian.org> - 2024-08-21 13:50 +0200
  Re: wait until swapoff is *actually* finished (it returns too early)? Stefan Monnier <monnier@iro.umontreal.ca> - 2024-08-21 15:40 +0200
  Re: wait until swapoff is *actually* finished (it returns too early)? Franco Martelli <martellif67@gmail.com> - 2024-08-21 16:00 +0200
    Re: wait until swapoff is *actually* finished (it returns too early)? Thorsten Glaser <tg@debian.org> - 2024-08-21 23:20 +0200
      Re: wait until swapoff is *actually* finished (it returns too early)? Stefan Monnier <monnier@iro.umontreal.ca> - 2024-08-22 14:50 +0200
        Re: wait until swapoff is *actually* finished (it returns too early)? Mike Castle <dalgoda+debian@gmail.com> - 2024-08-22 17:50 +0200
          Re: wait until swapoff is *actually* finished (it returns too early)? Thorsten Glaser <tg@debian.org> - 2024-08-22 19:30 +0200
            Re: wait until swapoff is *actually* finished (it returns too early)? <tomas@tuxteam.de> - 2024-08-22 21:40 +0200
              Re: wait until swapoff is *actually* finished (it returns too early)? Mike Castle <dalgoda+debian@gmail.com> - 2024-08-23 05:40 +0200
            Re: wait until swapoff is *actually* finished (it returns too early)? Mike Castle <dalgoda+debian@gmail.com> - 2024-08-23 04:50 +0200
              Re: wait until swapoff is *actually* finished (it returns too early)? Thorsten Glaser <tg@debian.org> - 2024-08-23 05:20 +0200
  Re: wait until swapoff is *actually* finished (it returns too early)? Pierre-Elliott Bécue <peb@debian.org> - 2024-08-23 13:10 +0200
    Re: wait until swapoff is *actually* finished (it returns too early)? Thorsten Glaser <tg@debian.org> - 2024-08-23 22:20 +0200

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