[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Need help with fixing the Xen waitqueue feature
On Wed, Nov 23, Keir Fraser wrote: > On 23/11/2011 17:00, "Olaf Hering" <olaf@xxxxxxxxx> wrote: > > > On Tue, Nov 22, Keir Fraser wrote: > > > >> We obviously can't have dom0 going to sleep on paging work. This, at least, > >> isn't a wait-queue bug. > > > > I had to rearrange some code in p2m_mem_paging_populate for my debug > > stuff. This led to an uninitialized req, and as a result req.flags > > sometimes had MEM_EVENT_FLAG_VCPU_PAUSED set. For some reason gcc did > > not catch that.. > > Now waitqueues appear to work ok for me. Thanks! > > Great. However, while eyeballing wait.c I spotted at least two bugs. I'm > pretty sure that the hypervisor will blow up pretty quickly when you resume > testing with multiple physical CPUs, for example. I need to create a couple > of fixup patches which I will then send to you for test. Good, I will look forward for these fixes. > By the way, did you test my patch to domain_crash when the stack-save area > isn't large enough? I ran into the ->esp == 0 case right away, but I need to retest with a clean tree. Olaf _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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