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[Qemu-devel] Re: [PATCH v2] vnc: threaded server depends on io-thread

From: Corentin Chary
Subject: [Qemu-devel] Re: [PATCH v2] vnc: threaded server depends on io-thread
Date: Wed, 9 Mar 2011 13:42:29 +0000

On Wed, Mar 9, 2011 at 1:21 PM, Corentin Chary <address@hidden> wrote:
> The threaded VNC servers messed up with QEMU fd handlers without
> any kind of locking, and that can cause some nasty race conditions.
> The IO-Thread provides appropriate locking primitives to avoid that.
> This patch makes CONFIG_VNC_THREAD depends on CONFIG_IO_THREAD,
> and add lock and unlock calls around the two faulty calls.
> Thanks to Jan Kiszka for helping me solve this issue.
> Cc: Jan Kiszka <address@hidden>
> Signed-off-by: Corentin Chary <address@hidden>
> ---
> The previous patch was total crap, introduced race conditions,
> and probably crashs on client disconnections.

Forget that one too, also deadlock on vnc_jobs_join(). I'll need some
more time to fix that.

Corentin Chary

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