Em Fri, 9 Oct 2015 10:00:39 +0530 Chetan Nanda <chetannanda@xxxxxxxxx> escreveu: > Hi, > > I am working on V4L2 base videodecoder, > I have two threads say A and B. Thread A is for configuration and > Thread B for queuing/de-queuing buffers. > > In one usecase, > - Thread B is blocked on VIDIOC_DQBUF, > - and at same time Thread A do the flush and do, STREAMOFF, QBUF, STREAMON. > > Once thread A do this, Thread B waked up (as a result of STREAMOFF) > and return -ERESTARTSYS (from wait_interrupt_interruptible) from > DQBUF. > > ERESTARTSYS is for kernel internal and should not be passed to > userside, and even ERESTARTSYS is not available at user side. > > Shouldn't VB2 catch ERESTARTSYS and return -RESTART or some other error? In thesis, the ioctl core should be handling -ERESTARTSYS. Are you sure that you're seeing ERESTARTSYS on userspace? > > Thanks, > Chetan Nanda > -- > To unsubscribe from this list: send the line "unsubscribe linux-media" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
