Re: [Qemu-devel] [PATCH v2 39/39] raw-win32: implement native asynchronous I/O

[Jan Kiszka]

On 2012-10-31 16:30, Paolo Bonzini wrote:
> With the new support for EventNotifiers in the AIO event loop, we
> can hook a completion port to every opened file and use asynchronous
> I/O on them.
> 
> Wine's support is extremely inefficient, also because it really does
> the I/O synchronously on regular files. (!)  But it works, and it is
> good to keep the Win32 and POSIX ports as similar as possible.
> 

I'm seeing a regression with this patch when cross-compiling with
mingw32 for Win7. QEMU is stuck while booting a versatilepb guest that
accesses the block layer via pflash. Enabling tracing "fixes" the issue,
of course...

Are there any patches flying around that are supposed to resolve this?

Jan

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