I'm not the original reporter, but I am affected and the fix looks good to me. Details below (forgive any typos or abbreviations, copy/paste not setup for my test-vm)...
### First boot $ uname -r 3.2.0-86-generic $uname -v #124-Ubuntu SMP Wed Jun 17 <... snip build time ...> $ df df: '/sys/kernel/debug': Function not implemented # Error reproduced with build-124 <... snip ...> $ echo 'deb http://archive.ubuntu.com/ubuntu/ trusty-proposed restricted main multiverse universe' > /etc/apt/sources.list $ sudo aptitude update <... snip ...> $ sudo aptitude upgrade # installs build-125 <... snip ...> $ sudo reboot ### Second boot $ uname -r 3.2.0-86-generic $ uname -v #125-Ubuntu SMP Wed Jun 19 <... snip build time ...> $ df <... snip ...> # No error with build-125 ** Tags removed: verification-needed-precise ** Tags added: verification-done-precise -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1465322 Title: regression: "df: `/sys/kernel/debug': Function not implemented" with 3.2.0-85.122 Status in linux package in Ubuntu: In Progress Status in linux source package in Precise: Fix Committed Bug description: $ cat /proc/version_signature Ubuntu 3.2.0-84.121-generic 3.2.68 $ df | head -3 Filesystem 1K-blocks Used Available Use% Mounted on /dev/vda1 7481832 4262872 2838904 61% / udev 371920 4 371916 1% /dev $ cat /proc/version_signature Ubuntu 3.2.0-85.122-generic 3.2.69 $ df | head -3 df: `/sys/kernel/debug': Function not implemented Filesystem 1K-blocks Used Available Use% Mounted on /dev/vda1 7481832 4263012 2838764 61% / udev 371920 4 371916 1% /dev This is confirmed in an amd64 VM and on an amd64 system. It doesn't make a difference if I use sudo. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1465322/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
