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