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Date: Fri, 26 Oct 2007 19:15:25 +0200
From: Philippe Gerum <rpm@xenomai.org>
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Sender: Philippe Gerum <philippe.gerum@domain.hid>
Subject: Re: [Xenomai-core] clocktest and cyclictest work but irqloop crashes
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To: "Steven A. Falco" <sfalco@domain.hid>
Cc: xenomai@xenomai.org

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Steven A. Falco wrote:
> I am testing kernel 2.6.23 ARCH=powerpc with Xenomai 2.4-rc4.  The 
> clocktest and cyclictest work perfectly with the uic/spinlock patches.  
> However, the irqloop test fails with the Oops shown below.
>

Please try the patch below. It looks like the chip descriptor does not implement
any unmask handler, which seems odd. This patch should tell us a bit more about
this issue.

-- 
Philippe.

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Index: ksrc/arch/powerpc/hal.c
===================================================================
--- ksrc/arch/powerpc/hal.c	(revision 3095)
+++ ksrc/arch/powerpc/hal.c	(working copy)
@@ -245,6 +245,11 @@
 
     rthal_irq_desc_status(irq) &= ~IRQ_DISABLED;
 
+    if (rthal_irq_handlerp(irq)->unmask == NULL) {
+      printk("NULL ->unmask handler, IRQ %d, chip %s\n", irq, rthal_irq_handlerp(irq)->typename);
+      return 0;
+    }
+
     return rthal_irq_chip_enable(irq);
 }
 

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