/dev/shm is a tmpfs, and tmpfs in the kernel has a default mode of 01777. I don't see how this could be happening without a) an /etc/fstab entry overriding the /lib/init/fstab entry, or b) a rogue local script running at start-up that's changing the mode.
I certainly don't see any bugs in mountall here, and can't reproduce this - so if someone is still seeing this in 12.04, I'm afraid we're going to need more information to figure it out. ** Changed in: mountall (Ubuntu) Status: Triaged => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/566788 Title: /dev/shm isn't writable, causing problems with glibc 2.2+ apps such as chromium To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mountall/+bug/566788/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs