From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Wed, 29 Aug 2007 16:34:39 +0200
From: "Axel Beierlein" <belatronix@domain.hid>
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Subject: [Xenomai-help] System hangs in/after rtdm_lock_put_irqrestore
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To: "Xenomai-help@domain.hid" <Xenomai-help@domain.hid>

what could it be that an simple rt_dev_open locks up my system when it  =

calls rtdm_lock_put_irqrestore?

[...]
if (rtdm_irq_request(&ctx->irq_handle,
		        MPC5xxx_PSC2_IRQ,
			rt_psc_interrupt,
			RTDM_IRQTYPE_SHARED | RTDM_IRQTYPE_EDGE,
				context->device->proc_name,
				ctx))
	{
		printk ("psc5200B.c: request_irq() failed\n");
		return -1;
	}

     rtdm_irq_enable(&ctx->irq_handle);

     rtdm_lock_get_irqsave(&ctx->lock, lock_ctx);

     ctx->imr_status =3D MPC5xxx_PSC_IMR_RXRDY;
	out_be16(&psc->mpc5xxx_psc_imr, ctx->imr_status);

	rtdm_lock_put_irqrestore(&ctx->lock, lock_ctx);
	^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
	Here i get the crash


The test prog is a simple  =

fd=3Drt_dev_open("nameofdevice",0)......rt_dev_close(fd).


Axel