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[Xen-devel] Re: [PATCH] mem_sharing: fix race condition of nominate and unshare
- To: tinnycloud <tinnycloud@xxxxxxxxxxx>
- From: Jui-Hao Chiang <juihaochiang@xxxxxxxxx>
- Date: Fri, 7 Jan 2011 14:45:01 +0800
- Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Tim Deegan <Tim.Deegan@xxxxxxxxxx>
- Delivery-date: Thu, 06 Jan 2011 22:45:39 -0800
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Hi, tinnycloud:
(XEN) mm.c:859:d0 Error getting mfn 2df6a8 (pfn fffffffffffffffe) from L1 entry 80000002df6a8627 for l1e_owner=0, pg_owner=2
(XEN) mm.c:859:d0 Error getting mfn 2df6a9 (pfn fffffffffffffffe) from L1 entry 80000002df6a9627 for l1e_owner=0, pg_owner=2
Could you use dump_execution_state() in mm.c:859?
And in the unshare() function, could you move the printk outside the (!p2m_is_shared(p2mt)) checking?
If you put inside it, we never know if the unshare() is being done or not (please also print out the mfn, p2mt, gfn, domain_id).
Just out of curiosity, are you running stubdom? your HVM guest id =2 is pretty weird.
Thanks,
Jui-Hao
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