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Re: [Qemu-trivial] [Qemu-devel] [PATCH v4 03/11] qemu-log: correct help

From: Alex Bennée
Subject: Re: [Qemu-trivial] [Qemu-devel] [PATCH v4 03/11] qemu-log: correct help text for -d cpu
Date: Tue, 04 Aug 2015 18:22:30 +0100

Richard Henderson <address@hidden> writes:

> On 08/04/2015 08:15 AM, Peter Maydell wrote:
>> On 4 August 2015 at 16:11, Alex Bennée <address@hidden> wrote:
>>> Aurelien Jarno <address@hidden> writes:
>>>> On 2015-08-03 10:14, Alex Bennée wrote:
>>>> In practice this is not true for linked TB. Should we also disable TB
>>>> linking when this option is enabled?
>>> Good question. I suspect yes because if you've gone to level of wanting
>>> exec tracing you'll probably get confused by the chaining. Of course it
>>> will run a lot slower then.
>> Unless the bug you were trying to track down is caused by the exec
>> chaining, of course... But yes, I think we get more people wanting
>> chaining to be disableable.
>> Not sure we want to tie it to the 'cpu' debug option, though -- it
>> applies just as much to 'exec'.
> Does it make more sense to have a 'nochain' debug option, and not tie it to
> either 'cpu' or 'exec'?  It might be occasionally useful on its own, simply to
> determine if a bug does exist in the exec chaining.

Would that make sense as a debug option or should we have a specific set
of TCG options to alter its behaviour?

> r~

Alex Bennée

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