| To: | "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] RE: lock issue for vpic_irq_negative_edge |
| From: | "Tian, Kevin" <kevin.tian@xxxxxxxxx> |
| Date: | 2007年3月29日 15:39:01 +0800 |
| Delivery-date: | 2007年3月29日 00:38:16 -0700 |
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| In-reply-to: | <C2312A78.519D%Keir.Fraser@xxxxxxxxxxxx> |
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| Thread-index: | Acdxq2rwPOuYrZ93SlCRhY9uMvANXwAKTL/TAAAiJ4A= |
| Thread-topic: | lock issue for vpic_irq_negative_edge |
>From: Keir Fraser [mailto:Keir.Fraser@xxxxxxxxxxxx] >Sent: 2007年3月29日 15:34 > >On 29/3/07 03:39, "Tian, Kevin" <kevin.tian@xxxxxxxxx> wrote: > >> Hi, Keir, >> vPIC has a private lock, but there's no acquisition in the >> injection >> path. This should be a potential issue for change on IRR. Then the >> assertion (ASSERT(vpic_is_locked(vpic)) is likely to be failed within >> vpic_irq_negative_edge if debug option is enabled. Is anything >> missing here? > >No, there actually isn't a private vPIC lock any more. If you look at the >top of the vpic.c file you'll see that the 'vpic lock' is actually an alias >for the generic irq_lock. This is always acquired by the caller of >vpic_irq_negative_edge(). > > -- Keir > Oh, yes, my mistake on position of parenthesis. :-) Thanks Kevin _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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