On Sat, 14 Sep 2019 23:03:25 +0000 (UTC) Thorsten Glaser <t...@mirbsd.de> wrote: > Hi Ted, > > >I believe this is a bug in cron or lvm, in that cron fd 3 open for > >some unknown reason. And then LVM whines about it. See: > > Indeed, I think this is most likely a bug in cron. > It’s (while annoying) okay for LVM to complain (IceWM also does, IIRC). > > >The simplest way to work around this should be to add to the following > >command to the beginning of /sbin/e2scrub_all: > > > >exec 3<&- > > > >Can you confirm this fixes things for you? > > Yes, it does. (The Korn shell (when not in POSIX mode) also closes > those fds by default, but given none is in base, this fix is easier > than switching to #!/bin/mksh ☻)
Hello Thorsten, hello Theodore, I am another user who began receiving the same error messages from cron on a box with LVM, but without systemd. I can also confirm that applying the attached trivial patch makes lvm stop complaining. While waiting for a more radical fix (in cron or in lvm), do you think this workaround should be included in the next Debian revision of e2fsprogs? -- http://www.inventati.org/frx/ There's not a second to spare! To the laboratory! ..................................................... Francesco Poli . GnuPG key fpr == CA01 1147 9CD2 EFDF FB82 3925 3E1C 27E1 1F69 BFFE
diff -ruN a/e2scrub_all b/e2scrub_all
--- a/e2scrub_all 2019-08-06 21:22:30.000000000 +0200
+++ b/e2scrub_all 2019-09-18 22:30:10.072358145 +0200
@@ -25,6 +25,10 @@
exit 1
fi
+# close file descriptor 3, in order to prevent lvm from complaining
+# see <https://bugs.debian.org/940240> for more info
+exec 3<&-
+
periodic_e2scrub=0
scrub_all=0
snap_size_mb=256
pgp5DzjfmzKpE.pgp
Description: PGP signature
