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=20
Le vendredi 27 septembre 2024 =C3=A0 08:37:20 UTC=E2=88=924, David Wolf=
skill <david@catwhisker.org> a =C3=A9crit : =20
=20
On Fri, Sep 27, 2024 at 02:28:22PM +0200, Ronald Klop wrote:
> Hi,
>=20
> Sometimes when I stop a jail the filesystem is not unmounted.
>=20
> /data/jails/freebsd14.1-RELEASE on /data/jails/jenkins/_root (nullfs, loc=
al, read-only, nfsv4acls, fsid 07ff002929000000, vnodes: count 1 )
> [root@rpi4 ~]# umount=C2=A0 07ff002929000000
> umount: unmount of /data/jails/jenkins/_root failed: Device busy
>=20
> Sometimes after some time the umount does succeed.
>=20
> How can I find what is keeping this mount busy?
> ....
fstat(1) should be able to do that -- e.g.:
=C2=A0=C2=A0=C2=A0 fstat -f /data/jails/jenkins/_root
Peace,
david
--=20
David H. Wolfskill=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 david@catwhisker.org
A convicted felon threatens to jail election officials.=C2=A0 Sad.
See https://www.catwhisker.org/~david/publickey.gpg for my public key.
=20
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<html><head></head><body><div class=3D"ydp4adcafdeyahoo-style-wrap" style=
=3D"font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px=
;"><div><div dir=3D"ltr" data-setdir=3D"false">Dear,</div><div dir=3D"ltr" =
data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false">try =
lsof<br></div><div><br></div><div class=3D"ydp4adcafdesignature">Yves Gueri=
n</div></div>
<div><br></div><div><br></div>
=20
</div><div id=3D"yahoo_quoted_7552373788" class=3D"yahoo_quoted">
<div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
=20
<div>
Le vendredi 27 septembre 2024 =C3=A0 08:37:20 UTC=
=E2=88=924, David Wolfskill <david@catwhisker.org> a =C3=A9crit :
</div>
<div><br></div>
<div><br></div>
=20
=20
<div>On Fri, Sep 27, 2024 at 02:28:22PM +0200, Ronald Klop =
wrote:<div class=3D"yqt0012630488" id=3D"yqtfd06759"><br clear=3D"none">>=
; Hi,<br clear=3D"none">> <br clear=3D"none">> Sometimes when I stop =
a jail the filesystem is not unmounted.<br clear=3D"none">> <br clear=3D=
"none">> /data/jails/freebsd14.1-RELEASE on /data/jails/jenkins/_root (n=
ullfs, local, read-only, nfsv4acls, fsid 07ff002929000000, vnodes: count 1 =
)<br clear=3D"none">> [root@rpi4 ~]# umount 07ff002929000000<br cl=
ear=3D"none">> umount: unmount of /data/jails/jenkins/_root failed: Devi=
ce busy<br clear=3D"none">> <br clear=3D"none">> Sometimes after some=
time the umount does succeed.<br clear=3D"none">> <br clear=3D"none">&g=
t; How can I find what is keeping this mount busy?</div><br clear=3D"none">=
> ....<br clear=3D"none"><br clear=3D"none">fstat(1) should be able to d=
o that -- e.g.:<br clear=3D"none"><br clear=3D"none"> fst=
at -f /data/jails/jenkins/_root<br clear=3D"none"><br clear=3D"none">Peace,=
<br clear=3D"none">david<br clear=3D"none">-- <br clear=3D"none">David H. W=
olfskill &nbs=
p; <a shape=3D"rect" ymailto=3D"mailto:d=
avid@catwhisker.org" href=3D"mailto:david@catwhisker.org">david@catwhisker.=
org</a><br clear=3D"none">A convicted felon threatens to jail election offi=
cials. Sad.<br clear=3D"none"><br clear=3D"none">See <a shape=3D"rect=
" href=3D"https://www.catwhisker.org/~david/publickey.gpg" target=3D"_blank=
">https://www.catwhisker.org/~david/publickey.gpg</a>; for my public key.<di=
v class=3D"yqt0012630488" id=3D"yqtfd47574"><br clear=3D"none"></div></div>
</div>
</div></body></html>
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