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From: Fam Zheng <famz@redhat.com>
To: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Peter Xu <peterx@redhat.com>,
	Stefan Hajnoczi <stefanha@gmail.com>,
	QEMU Devel Mailing List <qemu-devel@nongnu.org>,
	Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: [Qemu-devel] A glib warning encountered with internal iothread
Date: Wed, 27 Sep 2017 20:36:46 +0800	[thread overview]
Message-ID: <20170927123646.GA8521@lemon.lan> (raw)
In-Reply-To: <20170927121753.GB14579@stefanha-x1.localdomain>

On Wed, 09/27 13:17, Stefan Hajnoczi wrote:
> On Tue, Sep 26, 2017 at 07:13:43PM +0800, Fam Zheng wrote:
> > On Tue, 09/26 17:11, Peter Xu wrote:
> >  void aio_context_unref(AioContext *ctx)
> >  {
> > +    assert(ctx->refcnt > 0);
> > +    if (--ctx->refcnt == 0) {
> > +        aio_set_event_notifier(ctx, &ctx->notifier, false, NULL, NULL);
> > +    }
> 
> This isn't a general solution because Linux AIO also has a file
> descriptor that is removed in aio_ctx_finalize().

Right. Another option is to move everything in aio_context_finalize() into the
"if (--ctx->refcnt == 0) { ... }" block, before calling g_source_unref().

Fam

  reply	other threads:[~2017-09-27 12:36 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-26  5:44 [Qemu-devel] A glib warning encountered with internal iothread Peter Xu
2017-09-26  8:43 ` Stefan Hajnoczi
2017-09-26  9:11   ` Peter Xu
2017-09-26 11:13     ` Fam Zheng
2017-09-27  4:09       ` Peter Xu
2017-09-27 12:17       ` Stefan Hajnoczi
2017-09-27 12:36         ` Fam Zheng [this message]
2017-09-27 13:14           ` Paolo Bonzini
2017-09-28  2:43             ` Peter Xu

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