* Matthias Klein | 2013-10-02 14:54:00 [+0000]: >Hello, Hi, >i am writing a kernel module on a rt kernel where I have an >IRQF_NO_THREAD interrupt. I hope you know what you are doing with this. >For sharing a "write index" between that interrupt and the process >context (ioctl() etc.) I use a spin_lock for locking. > >In the IRQ I use spin_lock() & spin_unlock(), and in the process >context I use spin_lock_irq() & spin_unlock_irq(). > >Basically the driver and the test application are working, but after >some time I get an oops message. > >Do I use the right functions for locking ? Do you have a tip why I >get that oops message ? You should use a the raw_spinlock here if you _really_ need IRQF_NO_THREAD. >Best regards, > >Matthias Sebastian -- 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
