[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] Re: Large system boot problems
Keir Fraser wrote: > On 8/2/08 13:49, "Bill Burns" <bburns@xxxxxxxxxx> wrote: > >> Looking for ideas or suggestions on how to solve this issue. >> Ideally we'd be able to prevent the bogus calculation in the >> first place. > > Could the bad value coming from calibration in init_pit_and_calibrate_tsc(), > or perhaps it is somehow caused perhaps by not-frequent-enough softirq > handling on CPU0 as it brings up all the secondary CPUs (and hence it is not > going through local_time_calibration() during that period)? > The message from early_time_init (caller of iinit_pit_and_calibrate_tsc, indicates that the initial detection is ok: (pmtimer case) (XEN) Detected 3400.114 MHz processor. ((pit case) (XEN) Detected 3400.165 MHz processor. So I think it's the latter. The init of a large system is staving off the soft irq so that the next calc fails. Bill (XEN) Detected 3400.114 MHz processor. > -- Keir > > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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