Your message dated Fri, 06 Mar 2026 20:34:52 +0000
with message-id <[email protected]>
and subject line Bug#1094739: fixed in schroot 1.6.13-8
has caused the Debian Bug report #1094739,
regarding schroot: 10mount fails on lock directory creation
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
1094739: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1094739
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: schroot
Version: 1.6.13-3+b2
Severity: important
Tags: patch
X-Debbugs-Cc: [email protected], [email protected]
Hello!
In case of multiple schroot processes checking for lock directory
presence at the same time more then one process can try to create this
directory. It happens because checking itself is not atomic:
(etc/setup.d/10mount, function do_umount_all)
```
if [ -e /var/lock/schroot ]; then
if [ ! -d /var/lock/schroot ]; then
error "/var/lock/schroot is not a directory"
exit 1
fi
else
mkdir -m 0700 /var/lock/schroot
fi
```
This will result in the following error:
| E: 10mount: mkdir: cannot create directory '/var/lock/schroot': File exists
To prevent second process fail on mkdir of already created lock
directory (and also allow creation of subfolders if not exist)
option -p can be added to mkdir command.
Pull request with the patch was sent to upstream repo:
https://codeberg.org/shelter/reschroot/pulls/12
-- System Information:
Debian Release: 12.8
APT prefers stable
APT policy: (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: arm64
Kernel: Linux 6.11.5+bpo-amd64 (SMP w/32 CPU threads; PREEMPT)
Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: unable to detect
Versions of packages schroot depends on:
ii debconf [debconf-2.0] 1.5.82
ii libboost-filesystem1.74.0 1.74.0+ds1-21
ii libboost-iostreams1.74.0 1.74.0+ds1-21
ii libboost-program-options1.74.0 1.74.0+ds1-21
ii libc6 2.36-9+deb12u9
ii libgcc-s1 12.2.0-14
ii libpam0g 1.5.2-6+deb12u1
ii libstdc++6 12.2.0-14
ii libuuid1 2.38.1-5+deb12u2
ii schroot-common 1.6.13-3
ii sysvinit-utils [lsb-base] 3.06-4
schroot recommends no packages.
Versions of packages schroot suggests:
pn aufs-tools | unionfs-fuse <none>
pn btrfs-progs <none>
ii bzip2 1.0.8-5+b1
ii debootstrap 1.0.128+nmu2+deb12u1
pn lvm2 <none>
ii qemu-user-static 1:7.2+dfsg-7+deb12u7
ii xz-utils 5.4.1-0.2
pn zfsutils-linux <none>
ii zstd 1.5.4+dfsg2-5
-- debconf information:
schroot/bad-names:
>From 96e9404437efb826a0e81b36560b4430922616e6 Mon Sep 17 00:00:00 2001
From: Anton Mikanovich <[email protected]>
Date: Mon, 2 Dec 2024 08:10:00 +0100
Subject: [PATCH] 10mount: Protect from races on do_umount_all
In case of multiple schroot processes checking for lock directory
presence at the same time more then one process can try to create this
directory. It happens because checking itself is not atomic.
This will result in the following error:
| E: 10mount: mkdir: cannot create directory '/var/lock/schroot': File exists
To prevent second process fail on mkdir of already created lock
directory (and also allow creation of subfolders if not exist) add -p
option to the command.
Signed-off-by: Anton Mikanovich <[email protected]>
---
etc/setup.d/10mount | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/etc/setup.d/10mount b/etc/setup.d/10mount
index 5e734050..9fb8093a 100755
--- a/etc/setup.d/10mount
+++ b/etc/setup.d/10mount
@@ -83,7 +83,7 @@ do_umount_all()
exit 1
fi
else
- mkdir -m 0700 /var/lock/schroot
+ mkdir -m 0700 -p /var/lock/schroot
fi
if [ "$(stat -c "%u %g %a" /var/lock/schroot)" != "0 0 700" ]; then
--
2.39.5
--- End Message ---
--- Begin Message ---
Source: schroot
Source-Version: 1.6.13-8
Done: Christoph Biedl <[email protected]>
We believe that the bug you reported is fixed in the latest version of
schroot, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Christoph Biedl <[email protected]> (supplier of updated schroot
package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Mon, 05 May 2025 08:05:35 +0200
Source: schroot
Architecture: source
Version: 1.6.13-8
Distribution: unstable
Urgency: medium
Maintainer: Christoph Biedl <[email protected]>
Changed-By: Christoph Biedl <[email protected]>
Closes: 1008616 1094739 1101658 1102156 1104692 1110659 1113487 1127026 1129698
Changes:
schroot (1.6.13-8) unstable; urgency=medium
.
* Update Portuguese translation, thanks Pedro Ribeiro.
Closes: #1102156
* Add Canalan debconf translation, thanks Carles Pina i Estany.
Closes: #1101658
* Avoid lockfile directory creation race, thanks Anton Mikanovich.
Closes: #1094739
* Add mount to build dependencies to loopback support.
Closes: #1104692
* Make ZFS snapshot removal more robust, thanks Florian Ernst.
Closes: #1008616
* Fix build with CMake 4, thanks Graham Inggs for collecting
these and the following ones. Closes: #1113487
* Fix build with Boost 1.85 and 1.89. Closes: #1110659, #1127026
* Add swedish DebConf translation, thanks Daniel Nylander.
Closes: #1129698
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