Re: [Qemu-devel] Problem under OSX Lion: GThread-ERROR **: GThread system may only be initialized once

[Andreas Färber]

Am 31.10.2011 17:36, schrieb Daniel P. Berrange:
> On Mon, Oct 31, 2011 at 09:25:26AM -0700, Juan Pineda wrote:
>> The current Qemu master branch crashes under OSX with a GThread error.
>> Commenting out vlc.c line 2188 (call to g_thread_init) allows it to run
>> successfully.
> 
> As a general rule all calls to 'g_thread_init(NULL)' should be protected
> by a conditional thus:
> 
>         if (!g_thread_supported())
>             g_thread_init(NULL);
> 
> Even though QEMU calls g_thread_init() very early in main(), there is
> always the possibility that some library QEMU links to, has got an ELF
> initializer, triggering before main(), which calls g_thread_init().

Thanks to both of you! I checked: vl.c is the only use without such
condition. So it seems this regression was introduced through
coroutine-gthread.c and is not specific to Darwin. I'll post a patch
shortly.

Andreas