On Thu, 10 May 2018 07:57:29 -0700 Paolo Galtieri <pgaltieri@xxxxxxxxx> wrote: > Folks, > twice now in the last 2 days when I have sat in front of my PC I > have found the following message on the screen: > > Kernel not configured for semaphores (System V IPC). Not using udev > synchronization code. > Halting. > > Since I have not modified my kernel from what I downloaded when I did > the most recent update I don't understand why this message is > appearing. Both times it occurred during the night because I find it > first thing in the morning. > > Anyone have any idea what is causing this message to appear? This is probably something else other than the kernel that has a bug. You can check if your kernel has semaphores set by going into /boot and running grep -i -e 'IPC' [config file for your running kernel] It should show something like CONFIG_SYSVIPC=y CONFIG_SYSVIPC_SYSCTL=y CONFIG_IPC_NS=y My suspicion would fall on systemd as a cause for your problem. But that's just a guess based on the error message, I haven't actually checked for the error message in the source. _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx