On 04/05/2010 09:44 PM, Marcelo Tosatti wrote:
On Thu, Mar 25, 2010 at 05:02:56PM +0200, Avi Kivity wrote:
Log emulated instructions in ftrace, especially if they failed.
Why not log all emulated instructions? Seems useful to me.
That was the intent, but it didn't pan out. I tried to avoid
double-logging where an mmio read is dispatched to userspace, and the
instruction is re-executed.
Perhaps we should split it into a decode trace and execution result
trace? Less easy to use but avoids confusion due to duplication.
--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
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