While this offers quite a few benefits for normally scheduled processes
this breaks RT scheduling for all user processes, since we do not assign
an RT share to the cgroups created via this mechanism. If the user
cgroups have no RT share assigned no member process can make use of RT
functionality. However, software like JACK and PA/rtkit assume that RT
is available in some way or another, either via RLIMIT_RTPRIO or via
some privileged service. Creating implicit cpu cgroups but not adding
RT shares to them hence breaks these applications.
There is no sane way to implicitly add RT shares to these groups, since
they are pulled from a global, limited pool and it would hence be very
hard to make this work without limiting the number of concurrent
sessions, or constantly rewriting the cpu share settings of already
logged in session cgroups.
Most likely this issue needs to be fixed in-kernel because we can enable
this feature by default again.
We need to preserve the database of network interfaces while we
rename them. Use the kernel's numbers wherever possible, instead
of the device names.
Fix wrong database filenames which contain a '/', translated
from '!' in the kernel name.
Fix segfault for kobject pathes where the subsystem can not be
determined from sysfs.
The output will always be quoted:
$ udevadm info --export --export-prefix=MY_ --query=property --name=sda
MY_UDEV_LOG='3'
MY_DEVPATH='/devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda'
MY_MAJOR='259'
MY_MINOR='0'
MY_DEVNAME='sda'
MY_DEVTYPE='disk'
MY_SUBSYSTEM='block'
If you have a path unit with:
DirectoryNotEmpty=/foo
and "/foo" does not exist, creating it later escapes the attention of systemd.
When adding watches for parent directories, systemd never adds one for the root
directory. It attempts to add a watch for an empty string instead, which fails.
If the path is "/", we must not trim the slash.
The bsg devices node are created after the LUN, so we fail in the
hotplug case, but succeed at coldplug, and create inconsistent data
that way.
The bsg device event order will need to be sorted out, by changing the
kernel.
Lennart Poettering
Kay Sievers
Michael Biebl
Miklos Vajna
David Zeuthen
Jesse Zhang
Martin Pitt
Michal Schmidt
Ozan Çağlayan
Ran Benita