From: Paolo Bonzini <pbonzini@redhat.com>
To: Fabien Chouteau <chouteau@adacore.com>
Cc: Peter Maydell <peter.maydell@linaro.org>, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] Multiple instances of Qemu on Windows multicore
Date: Thu, 03 Nov 2011 11:10:39 +0100 [thread overview]
Message-ID: <4EB2689F.3060205@redhat.com> (raw)
In-Reply-To: <4EB264D5.6070009@adacore.com>
On 11/03/2011 10:54 AM, Fabien Chouteau wrote:
>>> >> The unchaining is neither signal-safe nor thread-safe...
>> >
>> > Yeah, but there's nothing Windows-specific in that.
> That's very important, I don't see why it is different between Linux and
> Windows here.
Yep, perhaps for timers it was the case a while ago, but with
iothread+dynticks it should not be a problem anymore. For unchaining,
Linux and Windows should have never been different.
> Also, why running all the threads on the same CPU would
> make the code thread-safe?
It would ensure that two mutators wouldn't run concurrently. In some
sense, signal-safe code could then be considered thread-safe too.
Paolo
next prev parent reply other threads:[~2011-11-03 10:11 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-02 15:38 [Qemu-devel] Multiple instances of Qemu on Windows multicore Fabien Chouteau
2011-11-02 16:25 ` Paolo Bonzini
2011-11-02 17:10 ` Fabien Chouteau
2011-11-02 17:16 ` malc
2011-11-02 17:45 ` Paolo Bonzini
2011-11-02 17:55 ` malc
2011-11-02 18:01 ` Peter Maydell
2011-11-02 19:52 ` Paolo Bonzini
2011-11-02 19:57 ` Peter Maydell
2011-11-03 9:56 ` Fabien Chouteau
2011-11-03 9:54 ` Fabien Chouteau
2011-11-03 10:10 ` Paolo Bonzini [this message]
2011-11-03 10:29 ` Avi Kivity
2011-11-03 11:50 ` Paolo Bonzini
2011-11-04 9:27 ` Fabien Chouteau
2011-11-04 9:34 ` Paolo Bonzini
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