[Bug 575940] [NEW] Enforce CONFIG_TMPFS_POSIX_ACL=y for proper /dev perms

[Chase Douglas]

Public bug reported:

Ubuntu 10.04 (and possibly earlier releases) requires POSIX ACL support
for some /dev nodes. For example:

cndougla at mini:~/Canonical/ubuntu-lucid$ getfacl /dev/dsp
getfacl: Removing leading '/' from absolute path names
# file: dev/dsp
# owner: root
# group: audio
user::rw-
user:cndougla:rw-
group::rw-
mask::rw-
other::---

I know that at least sound is broken without CONFIG_TMPFS_POSIX_ACL=y,
so we need to enforce it for all flavours.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

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Enforce CONFIG_TMPFS_POSIX_ACL=y for proper /dev perms
https://bugs.launchpad.net/bugs/575940
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