On 4/10/2016 11:13 AM, Charles Steinkuehler wrote:
> I am experimenting with getting Machinekit running on Debian Jessie,
> and have run into an issue with loading capes.
> 
> After I manually load a cape:
> 
> $ SLOTS=/sys/devices/bone_capemgr.*/slots
> $ sudo -A su -c "echo cape-bebopr-brdg:R2 > $SLOTS"
> 
> ...CPU usage maxes out and I have eight systemd-udevd tasks running
> that are each taking a good chunk of the CPU.  These typically go away
> after apx. 17 seconds of CPU time (each), or about 2-1/2 minutes, but
> I'm wondering what in the world is going on.
> 
> Is this a known issue?  Any ideas how to tell what the systemd-udevd
> processes are doing?
> 
> The kernel is 3.8.13-xenomai-r78, which works fine under Wheezy.

I get the same results with a "stock" Debian Jessie image (

debian@beaglebone:~$ cat /etc/dogtag
BeagleBoard.org Debian Image 2016-03-27

...using the 3.8.13-bone79 kernel.  The 4.1.18-ti-r55 kernel provide
with the Jessie image has a cape manager (although the slots file is
in a different location), but trying to load the cape-bebopr-brdg:R2
cape fails.

Any hints as to how to debug would be very welcome!

-- 
Charles Steinkuehler
[email protected]

-- 
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