On 9/18/2014 11:40 AM, Robert Nelson wrote: > > sudo apt-get update > sudo apt-get install linux-image-3.14.19-ti-r22 > > has: CONFIG_PREEMPT_VOLUNTARY > > In the past, preempt broke a lot of things. So i'm always hesitant to > enable it by default across the board.
PREEMPT has a tendency to tickle obscure bugs in non-SMP safe kernel code. Many nasty bugs were uncovered as the PREEMPT code got merged into the kernel. Now the core kernel is very SMP safe, but there are still a lot of drivers (ie: "vendor-supplied code for single-core SoCs") that are not SMP clean. As multi-core ARM systems become more common, the situation should improve (as it did with the x86 over time). -- Charles Steinkuehler char...@steinkuehler.net -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
