Thanks for all the help and testing, Rolf! I'll submit an SRU request to have this patch in all Ubuntu releases.
** Changed in: linux (Ubuntu Zesty) Status: In Progress => Fix Committed -- 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/1619918 Title: lsattr 32bit does not work on 64bit kernel (Inappropriate ioctl error) Status in linux: Unknown Status in linux package in Ubuntu: Fix Committed Status in linux source package in Trusty: In Progress Status in linux source package in Xenial: In Progress Status in linux source package in Yakkety: In Progress Status in linux source package in Zesty: Fix Committed Bug description: I run an amd64 kernel on trusty. The e2fsprogs package was still the 32 bit i386 variety. This lead to the following situation (for essentially all files on a btrfs partition). $ lsattr /lib/modules/3.13.0-95-generic/kernel/drivers/staging/lustre/lustre/ptlrpc/ptlrpc.ko lsattr: Inappropriate ioctl for device While reading flags on /lib/modules/3.13.0-95-generic/kernel/drivers/staging/lustre/lustre/ptlrpc/ptlrpc.ko The problem was resolved by installing e2fsprogs:amd64. https://patchwork.kernel.org/patch/7517361/ might be related. To manage notifications about this bug go to: https://bugs.launchpad.net/kernel/+bug/1619918/+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