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Re: [Xen-devel] Re: Should shadow_lock be spin_lock_recursive?
| To: | Xiaofeng Ling <xiaofeng.ling@xxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] Re: Should shadow_lock be spin_lock_recursive? |
| From: | Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
| Date: | Thu, 12 May 2005 08:57:04 +0100 |
| Cc: | Arun Sharma <arun.sharma@xxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Thu, 12 May 2005 07:59:22 +0000 |
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On 12 May 2005, at 02:57, Xiaofeng Ling wrote: This dead lock happened on VNIF code when enabled shadow mode. The shadow_lock path is so complex and maybe using recurisve lock is the easiest way to avoid dead lock currently before clearing the path or splitting the lock . shadow_lock() and show_unlock() should just get the per-domain BIGLOCK I think. That's recursive anyway. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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