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Re: [Xen-devel] hvm_set_callback_irq_level() deadlock?
| To: | Akio Takebe <takebe_akio@xxxxxxxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] hvm_set_callback_irq_level() deadlock? |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Wed, 07 Jan 2009 09:59:07 +0000 |
| Cc: | |
| Delivery-date: | Wed, 07 Jan 2009 01:59:46 -0800 |
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| In-reply-to: | <496478DC.9080309@xxxxxxxxxxxxxx> |
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| Thread-topic: | [Xen-devel] hvm_set_callback_irq_level() deadlock? |
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On 07/01/2009 09:41, "Akio Takebe" <takebe_akio@xxxxxxxxxxxxxx> wrote: > hvm_set_callback_irq_level() and so on call vioapic_irq_positive_edge() > before spin_unlock(&d->arch.hvm_domain.irq_lock). > I think it cause a deadlock. > If it is right, how should we fix them? > What do you think? Doesn't vioapic_irq_positive_edge() clearly expect to be called with that lock held? -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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