Keir Fraser
2006-May-16 18:46 UTC
Re: [Xen-devel] RE: [Xen-changelog] [MINIOS] Fix the pagefault handler to detect recursive faults.
On 16 May 2006, at 19:47, Petersson, Mats wrote:>> +static int handling_pg_fault = 0; > > Surely this needs to be an array indexed by smp_processor_id(), or > otherwise what happens if CPU0 page-faults when CPU1 is currently in a > page-fault? > > Or have I missed something that prevents this from ever happening?Mini-OS is a uniprocessor guest OS. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Petersson, Mats
2006-May-16 18:47 UTC
[Xen-devel] RE: [Xen-changelog] [MINIOS] Fix the pagefault handler to detect recursive faults.
> +static int handling_pg_fault = 0;Surely this needs to be an array indexed by smp_processor_id(), or otherwise what happens if CPU0 page-faults when CPU1 is currently in a page-fault? Or have I missed something that prevents this from ever happening? -- Mats _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel