Am 21.11.2013 20:52, schrieb Mark Knecht: > Hi, > I've been having a problem with new versions of Virtualbox hanging > my system completely, but only if I use the CONFIG_PREEMPT option. > I.e. - Preemptable Kernel (Low Latency Desktop) The problem does not > occur if I select Voluntary Preemption. > > The Oracle guys who do Virtualbox development has asked me to try > full preempt but disable the PREEMPT_RCU option as a test. I think > possibly Paul McKenney works on the RCU stuff and also frequenct this > list so possibly he or someone else here can tell me where I find the > option to completely disable the RCU stuff. (If it exists...) > > I'm currently running gentoo-sources-3.10.19, trying to build 3.10.20. > > Specifically, here's where I am now: > > c2RAID6 linux # cat .config | grep PREEMPT > CONFIG_TREE_PREEMPT_RCU=y > CONFIG_PREEMPT_RCU=y > CONFIG_PREEMPT_NOTIFIERS=y > # CONFIG_PREEMPT_NONE is not set > # CONFIG_PREEMPT_VOLUNTARY is not set > CONFIG_PREEMPT=y > CONFIG_PREEMPT_COUNT=y > CONFIG_DEBUG_PREEMPT=y > c2RAID6 linux # > > I found General Setup-> RCU Subsystem but I'm ot clear what option > might allow me to do what I think the Oracle devs are asking me to do. > > If I need a newer/different kernel let me know. > > Thanks, > Mark > > make menuconfig hit slash type in RCU
it will tell you where to find stuff
