[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] Re: xen dependant on pcpu 0 ?
>>> On 13.10.10 at 17:41, Sander Eikelenboom <linux@xxxxxxxxxxxxxx> wrote: > I saw a mistake in my explanation, i didn't mean d=0, but in my case (fresh > boot, first time domain with passthrough is started) d is not NULL and > d->domain_id = 0 > So it seems it thinks it's still assigned to dom0 when the MSI-X gets enabled > ? That would be bad indeed, but would indicate a problem elsewhere. > But this all does get triggered when the domU is started to which the domain > is passed through, and yes it enables MSI-X (when i look at lspci or > /proc/interrupts in the domU) > but d->domain_id results in "0" and not in the domain id of domU. > So if in this case the code in ( !d ) should have been run, it didn't (have > put a printk there to be sure) No, generally the !d case shouldn't get executed, the following d case, however, would expect the correct domain to be used (if it had a body implemented). > You were right that it didn't fix my freeze problem, although the RCU > detected CPU stall was now followed by the beginning of a trace although it > doesn't provide much more info. > I attached a photo of it. Looks like an access to a not mapped (IO-?)APIC page - that code path likely hasn't been tested so far in the pv-ops context. Jan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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