Thanks for integrating some of these rules. A few comments on the rules
you decided to leave out:
1) The ucm devices are indeed missing from devices.txt. I'll go through
LANANA to get them added to the InfiniBand character major and let you
know when they're there.
2) The rdma_ucm device is a misc device created with MISC_DYNAMIC_MINOR,
so I don't think there's any way to put it in devices.txt. I notice
that you already have a rules such as the one for /dev/mapper/control
(which is also a misc device with dynamic minor that does not appear in
devices.txt):
KERNEL=="device-mapper", NAME="mapper/control"
so I think it would make sense to also include the rule
KERNEL=="rdma_ucm", NAME="infiniband/%k"
3) What is the reasoning behind requiring the permission rules to come
from the package that creates the group? If the package is never
installed and the group does not exist, the rule is just silently
ignored. And the group may exist without being created by the package
(NIS for example) -- it's certainly within reason for someone to have
minimal cluster nodes running with /usr on NFS, so they don't need to
install libibverbs1 on their cluster nodes and hence wouldn't get any
udev rules except what udev itself ships.
With that said, I'm not _that_ opposed to putting some udev rules in the
libibverbs1 package, except that it really complicates my life by
forcing the Ubuntu package to be permanently different from the upstream
Debian package, because the README.Debian for udev says:
MAINTAINERS BEWARE: the use of /etc/udev/rules.d/ by other packages is
discouraged, except when only RUN rules are added.
and the Debian udev package ships with the InfiniBand group rdma rules
already.
--
Please add udev rules for InfiniBand/RDMA device nodes
https://bugs.launchpad.net/bugs/124990
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