glib2 and /etc/mtab

chrisVV · 08-31-2017, 05:35 AM

For the slackware maintainers:

There is a bug in glib2-2.52, as supplied with slackware-current, in distributions such as slackware where /etc/mtab is not a link to /proc/mounts or /proc/self/mounts. This arises because in such cases there is a race between the mounts-changed signal emitted by GUnixMountMonitor objects on the one hand and g_unix_mounts_get() on the other hand, which means that the handler of the mounts-changed signal may get a stale list of mount points from g_unix_mounts_get(): that is, one which does not include the change which caused the signal to be emitted in the first place.

A patch which deals with the issue is at https://bugzilla.gnome.org/show_bug.cgi?id=779607 . This patch will apparently appear in glib-2.54 and may appear in glib-2.52.4, should that ever be released.

The bug appears to affect any version of glib after glib2-2.42, so may affect some of the stable slackware series also (not tested).

The maintainers might like to consider including this patch in the distributed glib2 package.

Alien Bob · 09-01-2017, 03:19 AM

From today's ChangeLog.txt:

Code:

Thu Aug 31 21:14:43 UTC 2017
l/akonadi-1.13.0-x86_64-5.txz: Rebuilt.
       Merged an upstream patch and global config change to allow akonadi to work
       properly with mariadb-10.2.8. Thanks to Heinz Wiesinger.
l/glib2-2.52.3-x86_64-2.txz: Rebuilt.
       Fixed a race condition bug when using /etc/mtab. Thanks to ChrisVV.

chrisVV · 09-01-2017, 01:10 PM

Great.