On Thu, 2011-08-04 at 18:34 +0200, Tim Sander wrote: > I was really happy to find 6 preempt rt releases for the 3.0 kernel after holliday :-). > > So i went for a testdrive and found an error: The error occurs in a non released non > mainline kernel and is available from me upon request. It has been working on > (2.6.39,3.0) but is not working on 3.0-rt6. It fails in an interrupt which calls: > > wake_up_interruptible(&hbm_device.wait); > > The waitque has been initialized with: > init_waitqueue_head(&hbm_device.wait); > before interrupts where enabled. So i don't think its a race. looks like it tries to use waitqueues from hardirq context, that's a no-no for -rt. That interrupt should be a threaded interrupt. -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html