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Re: [Qemu-devel] qemu crashes on Mac OS X


From: Paolo Bonzini
Subject: Re: [Qemu-devel] qemu crashes on Mac OS X
Date: Tue, 26 Jul 2011 10:46:53 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:5.0) Gecko/20110707 Thunderbird/5.0

On 07/26/2011 06:58 AM, Alexandre Raymond wrote:
> +#ifdef __APPLE__
> +            if (sig == 0) continue;
> +#endif

>From looking at the code this should not happen:

http://fxr.watson.org/fxr/source/bsd/kern/kern_sig.c?v=xnu-792#L986

 1046         sigw = (ut->uu_sigwait & siglist);
...
 1053                 signum = ffs((unsigned int)sigw);
 1054                 if (!signum)
 1055                         panic("sigwait with no signal wakeup");
 1056                 ut->uu_siglist &= ~(sigmask(signum));
 1057                 if (uap->sig != USER_ADDR_NULL)
 1058                                 error = copyout(&signum, uap->sig, 
sizeof(int));

??

Paolo



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