It depends on the system, irq0 might not be the timer interrupt with
startup-apic. 


-----Original Message-----
From: Alex Cellarius [mailto:community-noreply@qnx.com] 
Sent: Wednesday, October 06, 2010 10:04 AM
To: ostech-core_os
Subject: IRQ0 not calling interrupt handler anymore with APIC boot image

Hooking IRQ0 doesn't work using the APIC based boot image (using
startup-apic). It works fine still using the other default boot images.

...
       if ( -1 != ( id = InterruptAttach( 0, InterruptHandler, &my_data,
sizeof my_data, 0 ) ) ) {
                while ( EINTR == ( errno = InterruptWait_r( 0, NULL ) )
)
 ...

What is the correct way to specify IRQ0 with the APIC regime? Or is
there something else going on here?





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OSTech
http://community.qnx.com/sf/go/post69741

Try to attach the IRQ2