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Re: [Xen-devel] Re: how to handle paged hypercall args?
| To: | Olaf Hering <olaf@xxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] Re: how to handle paged hypercall args? |
| From: | Keir Fraser <keir@xxxxxxx> |
| Date: | Tue, 07 Dec 2010 16:45:27 +0000 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx, Jan Beulich <JBeulich@xxxxxxxxxx> |
| Delivery-date: | Tue, 07 Dec 2010 08:46:22 -0800 |
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| Thread-topic: | [Xen-devel] Re: how to handle paged hypercall args? |
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On 07/12/2010 09:25, "Olaf Hering" <olaf@xxxxxxxxx> wrote: > On Thu, Dec 02, Keir Fraser wrote: > >> Since your current patch is conceptually quite broken anyway, there is >> little point in chasing down the crash. It might have something to do with >> allocating the waitqueue_head on the local stack -- which you would never >> want to do in a correct usage of waitqueues. So, back to square one and try >> again I'm afraid. > > Keir, > > yesterday I sent out my patch queue for xen-unstable. I think the > approach to wait the active vcpu in p2m_mem_paging_populate() and wakeup > the vcpu in p2m_mem_paging_resume() could work. > However, something causes what looks like stack corruption. > > Any idea whats going on? No, I did some unit testing of the waitqueue stuff and it worked for me. Perhaps you can suggest some reproduction steps. K. > Olaf > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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