[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Re: windows bluescreen after restore
At 07:25 -0400 on 02 May (1178090752), Guy Zana wrote: > IRQL_NOT_LESS_OR_EQUAL happens when a kernel thread with high priority tries > to access a virtual address which is paged to the disk (since the paging > mechanism in windows runs in a lower priority of the thread). Most of the > chances that this is around paging... > > If you can reproduce the bug and it happens any time that you do > save/restore, I would suggest to try to tun the guest with paging disabled > (System Properties -> Advanced -> Performace [Settings] -> Advanced -> > Virtual Memory [Change] -> Select "No paging file") and then try to do > save&resote. > > STOP 0x8E is KERNEL_MODE_EXCEPTION_NOT_HANDLED and could be a side effect... Both of these stop codes are cause by the kernel taking a page fault when it didn't expect one (at a higher TPR level than the PF handler, or in non-paged memory). This is probably because either CPU state (CR3/CR4/EFER) or memory (guest pagetables) have been corrupted by the save/restore, so the shadow code sees garbage in the guest's pagetables and passes a pagefault to the guest. Tim. -- Tim Deegan <Tim.Deegan@xxxxxxxxxxxxx>, XenSource UK Limited Registered office c/o EC2Y 5EB, UK; company number 05334508 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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