[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] shadow2 corrupting PV guest state
Hi, At 16:18 +0900 on 24 Oct (1161706722), Doi.Tsunehisa@xxxxxxxxxxxxxx wrote: > In my investigation, get_page() assumes that the page frame is in > use. But, the page_info structure of released page frame should not > be treated as inuse. Thus the nd value might be invalid value in this > situation, I think. True, but we don't look at nd unless the page is allocated... > if ( unlikely((x & PGC_count_mask) == 0) || /* Not allocated? */ > unlikely((nx & PGC_count_mask) == 0) || /* Count overflow? */ > unlikely(d != _domain) ) /* Wrong owner? */ Cheers, Tim. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
|
Lists.xenproject.org is hosted with RackSpace, monitoring our |