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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [timer/ticks related] dom0 hang during boot on large 1TB system
On 22/12/2009 07:59, "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx> wrote: >> For wrapping, unsigned comparision must be done, which is also the jiffies >> data type. > > If you do 32-bit unsigned comparisons, that is broken by jiffies wrapping, > the fixing of which was the whole point of the comparison macros. I'm talking about '(ulong)b<(ulong)a' here of course. '(ulong)b-(ulong)a<0' would always be false, which is even less useful. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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