I'm now convinced this is a kernel bug. If I do touch xxx setfacl -m g::--- xxx strace -f -ooutput chmod g+rw xxx getfacl xxx
I see that the group acl for xxx is changed to include rw, and the file 'output' shows that chmod simply calls the fchmodat syscall, which uses notify_change to update the acl. If I do # make sure to be logged into console sudo apt-get purge qemu-kvm sudo modprobe kvm_intel sudo apt-get install qemu-kvm getfacl xxx # see that group acl is still --- sudo chmod g+rw /dev/kvm # see that group acl is still --- So the kernel is meant to be updating the acl in fchmodat, but is not doing it. I will try a xfs-backed VM to see if the bug is in ext4 itself, or in the generic fs code. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1092715 Title: udevadm trigger --action=change not working since quantal? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1092715/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
