Anthony Liguori wrote:
> Hi,
>
> I've been experimenting with creating IO threads for the PV device
> drivers. Unfortunately, my experiments haven't gotten very far as QEMU
> tends to hang up a bit into booting the guest whenever I spawn a thread
> that does any sort of read/write on a file descriptor. My suspicion is
> that it has something to do with signals being delivered to the wrong
> thread but after masking out all the signals for this thread, I still
> had no luck.
>
>
Maybe you set the mask too late? try setting it before creating the thread:
sigfillset(&thread_sig_mask);
sigdelset(&thread_sig_mask,SIGILL);
sigdelset(&thread_sig_mask,SIGFPE);
sigdelset(&thread_sig_mask,SIGSEGV);
pthread_sigmask(SIG_SETMASK, &thread_sig_mask, &curr_sig_mask);
if ((r = pthread_create(&thread_tid, NULL, thread_func, &init_data))) {
....
}
pthread_sigmask(SIG_SETMASK, &curr_sig_mask, NULL);
> Any clues to what may be going on?
>
> Regards,
>
> Anthony Liguori
>
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