On 12/12/2016 07:24 AM, Ed Greshko wrote:
On 12/12/16 13:35, Frédéric Bron wrote:
> Hi,
>
> Each time I turn off Fedora 24, I get the following message about 50
> times printed in the console:
>
> Kernel not configured for semaphores (System V IPC). Not using udev
> synchronisation code.
> device-mapper: remove ioctl on fedora_alpha-root failed: Device or resource busy
> Command failed
>
> What does that mean?
It means you should follow this bugzilla....
https://bugzilla.redhat.com/show_bug.cgi?id=1359352
I am inclined to believe this bug might not be related to the OP's
problem - At least not the incarnation, I am facing ;)
What I am seeing on several machines, is larger series of the error
message above rushing through very rapidly (<< 1sec) upon each shutdown
on several machine, but so far I have not been experiencing shutdown
hangers.
Ralf