Date: Fri, 27 Sep 2024 12:47:03 +0000 (UTC) From: =?UTF-8?Q?Yves_Gu=C3=A9rin?= <yvesguerin@yahoo.ca> To: Ronald Klop <ronald-lists@klop.ws>, David Wolfskill <david@catwhisker.org> Cc: "freebsd-stable@freebsd.org" <freebsd-stable@freebsd.org> Subject: Re: how to find out where a umount is failing on -> vnodes: count 1 ? Message-ID: <492989678.10535729.1727441223394@mail.yahoo.com> In-Reply-To: <Zvam1EJ0xbnLKkLK@albert.catwhisker.org> References: <2020716853.7639.1727440102154@localhost> <Zvam1EJ0xbnLKkLK@albert.catwhisker.org>
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Dear,
try lsof
Yves Guerin
Le vendredi 27 septembre 2024 à 08:37:20 UTC−4, David Wolfskill <david@catwhisker.org> a écrit :
On Fri, Sep 27, 2024 at 02:28:22PM +0200, Ronald Klop wrote:
> Hi,
>
> Sometimes when I stop a jail the filesystem is not unmounted.
>
> /data/jails/freebsd14.1-RELEASE on /data/jails/jenkins/_root (nullfs, local, read-only, nfsv4acls, fsid 07ff002929000000, vnodes: count 1 )
> [root@rpi4 ~]# umount 07ff002929000000
> umount: unmount of /data/jails/jenkins/_root failed: Device busy
>
> Sometimes after some time the umount does succeed.
>
> How can I find what is keeping this mount busy?
> ....
fstat(1) should be able to do that -- e.g.:
fstat -f /data/jails/jenkins/_root
Peace,
david
--
David H. Wolfskill david@catwhisker.org
A convicted felon threatens to jail election officials. Sad.
See https://www.catwhisker.org/~david/publickey.gpg for my public key.
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<html><head></head><body><div class="ydp4adcafdeyahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><div><div dir="ltr" data-setdir="false">Dear,</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">try lsof<br></div><div><br></div><div class="ydp4adcafdesignature">Yves Guerin</div></div>
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Le vendredi 27 septembre 2024 à 08:37:20 UTC−4, David Wolfskill <david@catwhisker.org> a écrit :
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<div>On Fri, Sep 27, 2024 at 02:28:22PM +0200, Ronald Klop wrote:<div class="yqt0012630488" id="yqtfd06759"><br clear="none">> Hi,<br clear="none">> <br clear="none">> Sometimes when I stop a jail the filesystem is not unmounted.<br clear="none">> <br clear="none">> /data/jails/freebsd14.1-RELEASE on /data/jails/jenkins/_root (nullfs, local, read-only, nfsv4acls, fsid 07ff002929000000, vnodes: count 1 )<br clear="none">> [root@rpi4 ~]# umount 07ff002929000000<br clear="none">> umount: unmount of /data/jails/jenkins/_root failed: Device busy<br clear="none">> <br clear="none">> Sometimes after some time the umount does succeed.<br clear="none">> <br clear="none">> How can I find what is keeping this mount busy?</div><br clear="none">> ....<br clear="none"><br clear="none">fstat(1) should be able to do that -- e.g.:<br clear="none"><br clear="none"> fstat -f /data/jails/jenkins/_root<br clear="none"><br clear="none">Peace,<br clear="none">david<br clear="none">-- <br clear="none">David H. Wolfskill <a shape="rect" ymailto="mailto:david@catwhisker.org" href="mailto:david@catwhisker.org">david@catwhisker.org</a><br clear="none">A convicted felon threatens to jail election officials. Sad.<br clear="none"><br clear="none">See <a shape="rect" href="https://www.catwhisker.org/~david/publickey.gpg" target="_blank">https://www.catwhisker.org/~david/publickey.gpg</a>; for my public key.<div class="yqt0012630488" id="yqtfd47574"><br clear="none"></div></div>
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