On 6/27/12 7:04 PM, Sven-Thorsten Dietrich wrote:
On Jun 27, 2012, at 1:52 PM, Dong Liu wrote:Hi, I tried to run PREEMPT_RT patch under XEN, but running into some problem. My kernel is 3.4.3 with -r11 patch. XEN is 4.1.2. The kernel is running file as dom0. But as a Paravirtual (PV) domU, the system crashes normal when there is network traffic. kernel message indicates is kernel/rtmutex_common.h:75, which is, BUG_ON(w->lock != lock); Is this a known problem?I would consider this hopeless. Xen will not get you RT performance nor full preemption, so there is no point in running RT on Xen. Use KVM Sven
I also thought of that, because the RT performance or full preemption also depends on Xen's code, scheduler and spin lock etc. But I just want to have a system for benchmark comparison.
Running the RT kernel as HVM guest is fine. Thanks! Dong -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
