On Thu, Mar 06, 2003 at 05:40:01PM -0800, Jun Sun wrote: > I reported this bug last May. Apparently it is still not > taken up-stream. Ralf, why don't we fix it here and push > it up from you? > > BTW, this bug actually has effect on real-time performance under > preemptible kernel. < = 2.4.x preemptible kernel is OPP. > It can delay the execution of the highest > priority real-time process from execution up to 1 jiffy. Quite a number of users get_cycles() in the kernel assume it to return a 64-bit number. I guess we'll have to fake a 64-bit counter in software ... Ralf
