From: Paul Brook <paul@codesourcery.com>
To: qemu-devel@nongnu.org
Cc: Pavel Dovgaluk <Pavel.Dovgaluk@ispras.ru>
Subject: Re: [Qemu-devel] Deterministic replay
Date: Wed, 22 Dec 2010 12:35:13 +0000 [thread overview]
Message-ID: <201012221235.14145.paul@codesourcery.com> (raw)
In-Reply-To: <002101cba1ca$2cae3070$860a9150$@Dovgaluk@ispras.ru>
> Hello.
>
> I am working on implementation of deteministic execution replay technology
> for Qemu. It should be similar to VMWare's replay debugging.
>
> To make alarm timer (which invokes host_alarm_handler function)
> determinisic, I changed it's behavior: it sets flag, that execution should
> be stopped and this flag is checked before every instruction in the
> translated code.
You don't need to do this. A much better solution is to not use the host timer
at all. See -icount.
Paul
next prev parent reply other threads:[~2010-12-22 12:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-22 11:20 [Qemu-devel] Deterministic replay Pavel Dovgaluk
2010-12-22 12:35 ` Paul Brook [this message]
2010-12-22 12:43 ` Pavel Dovgaluk
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