[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-devel] [PATCH]Check the values of MAX_VIRT_CPUS and NR_CPUSfor SMP
>From: Keir Fraser >Sent: 2006年4月21日 14:41 > > >On 21 Apr 2006, at 02:31, Atsushi SAKAI wrote: > >> But the logical limit of the IA64 Max CPU is larger than 64. >> If someone change these values, some possibility make this error >again. >> >> To avoid this problem, I believe this check code should be exists. > >See how we solve this on x86 near the top of do_boot_cpu() in >arch/x86/smpboot.c. Essentially we allocate extra idle domains on >demand to give us enough idle vcpus for one per physical cpu. > > -- Keir Yes, that's the same story on ia64 where we also allocate idle vcpu at do_boot_cpu(). That's why I'm not sure the real cause for Atsushi's issue. Thanks, Kevin _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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