> On Aug 12, 2016, at 12:32 PM, Ryan Novosielski <novos...@rutgers.edu> wrote:
> 
>> On Aug 12, 2016, at 12:16, Kilian Cavalotti 
>> <kilian.cavalotti.w...@gmail.com> wrote:
>> 
>> On Thu, Aug 11, 2016 at 9:44 PM, Ryan Novosielski <novos...@rutgers.edu> 
>> wrote:
>>> [pid 11767] 
>>> open("/sys/fs/cgroup/devices/slurm/uid_109366/job_5377709/devices.allow", 
>>> O_WRONLY) = 10
>>> [pid 11767] write(10, "501835 rwm", 10) = -1 EINVAL (Invalid argument)
>>> [pid 11767] close(10)                   = 0
>> 
>> You bet it's EINVAL. :)
>> 
>> Question is: where does it get that 501835 number from? Looks like a
>> bug to me.
> 
> That number, neither 501 nor 835 (figured, maybe), appear anyplace else in 
> either the output of find /dev -ls or the entire strace output that I’ve 
> excerpted. I thought maybe a funny special character at the end of 
> group_allowed_devices_file.conf or something, so I tried reordering the file 
> just for fun. It happens after everything in that file is dealt with. My next 
> step, I think, was going to be trying with “ConstrainDevices” disabled so 
> that I can at least possibly introduce core and memory constraints and finish 
> this up a little later.
> 
>> I would suggest:
>> 1. try a newer version: you mentioned you're running 15.08.4. I would
>> try at least 15.08.9, or if possible, move to the 16.05 release branch.
> 
> Will do. It should be possible for me to do that fairly quickly.

Problem still present in 15.08.9. Ah well.

>> 2. submit a bug to http://bugs.schedmd.com (esp. if you have a support
>> contract, which IMHO, is worth every penny), that's the best way to
>> get valuable insight. Although I suspect they may suggest 1. :)
> 
> I do not, but am inching ever-closer to looking into it. :-P

Guess I’ll submit a bug at this point. How strange, eh?

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