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Re: [Qemu-devel] [PATCH] [ide] Check that asynchronous (DMA) submission
From: |
Jamie Lokier |
Subject: |
Re: [Qemu-devel] [PATCH] [ide] Check that asynchronous (DMA) submission succeeds |
Date: |
Sun, 7 Sep 2008 05:16:34 +0100 |
User-agent: |
Mutt/1.5.13 (2006-08-11) |
Anthony Liguori wrote:
> I'll have to look more closely, but most of the code goes to great
> lengths to use bottom halves to avoid the possibility of infinite
> recursion. The concern with recursion is not CPU consumption, it's that
> you'll eventually overrun the stack and potentially crash the QEMU process.
(Completely unrelated: "qemu -net nic -net user -net user" will
overrun the stack and crash the QEMU process as soon as the guest
makes an external TCP connection.)
-- Jamie