Public bug reported: trusty has a very old util-linux which does not yet know about /dev /loop-control to create arbitrarily many loop devices. This feature was introduced in Linux 3.1 already (i. e. before precise even). This is a showstopper for backporting snappy as that needs a lot of loop mounts.
Support for loop-control got introduced in http://git.kernel.org/cgit/utils/util-linux/util- linux.git/commit/?id=0b14bf7a SRU TEST CASE: $ for i in `seq 20`; do echo $i; sudo losetup --find --show /etc/issue; done With current trusty's util-linux this will only work for 8 loop devices and then start failing: 8 /dev/loop7 9 losetup: could not find any free loop device [...] With the proposed version, they should all work. REGRESSION POTENTIAL: /dev/loop-control and the corresponding util-linux support has exited for a long time without known/major issues, so this should be fairly safe. Also, the patch falls back to the previous "iterate over loop0 to loop7" behaviour if loop-control is not available. ** Affects: util-linux (Ubuntu) Importance: Undecided Status: Fix Released ** Affects: util-linux (Ubuntu Trusty) Importance: Undecided Status: Triaged ** Also affects: util-linux (Ubuntu Trusty) Importance: Undecided Status: New ** Changed in: util-linux (Ubuntu) Status: New => Fix Released ** Changed in: util-linux (Ubuntu Trusty) Status: New => Triaged ** Description changed: trusty has a very old util-linux which does not yet know about /dev /loop-control to create arbitrarily many loop devices. This feature was introduced in Linux 3.1 already (i. e. before precise even). This is a showstopper for backporting snappy as that needs a lot of loop mounts. Support for loop-control got introduced in http://git.kernel.org/cgit/utils/util-linux/util- linux.git/commit/?id=0b14bf7a SRU TEST CASE: $ for i in `seq 20`; do echo $i; sudo losetup --find --show /etc/issue; done With current trusty's util-linux this will only work for 8 loop devices and then start failing: 8 /dev/loop7 9 losetup: could not find any free loop device [...] With the proposed version, they should all work. REGRESSION POTENTIAL: /dev/loop-control and the corresponding util-linux support has exited for a long time without known/major issues, so this - should be fairly safe. + should be fairly safe. Also, the patch falls back to the previous + "iterate over loop0 to loop7" behaviour if loop-control is not + available. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to util-linux in Ubuntu. https://bugs.launchpad.net/bugs/1640823 Title: [trusty] limited to 8 loop devices Status in util-linux package in Ubuntu: Fix Released Status in util-linux source package in Trusty: Triaged Bug description: trusty has a very old util-linux which does not yet know about /dev /loop-control to create arbitrarily many loop devices. This feature was introduced in Linux 3.1 already (i. e. before precise even). This is a showstopper for backporting snappy as that needs a lot of loop mounts. Support for loop-control got introduced in http://git.kernel.org/cgit/utils/util-linux/util- linux.git/commit/?id=0b14bf7a SRU TEST CASE: $ for i in `seq 20`; do echo $i; sudo losetup --find --show /etc/issue; done With current trusty's util-linux this will only work for 8 loop devices and then start failing: 8 /dev/loop7 9 losetup: could not find any free loop device [...] With the proposed version, they should all work. REGRESSION POTENTIAL: /dev/loop-control and the corresponding util- linux support has exited for a long time without known/major issues, so this should be fairly safe. Also, the patch falls back to the previous "iterate over loop0 to loop7" behaviour if loop-control is not available. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/util-linux/+bug/1640823/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
