• Alexander Atanasov's avatar
    [PATCH] Fix irq handling of IO-APIC edge IRQs on UP · d6d3baa5
    Alexander Atanasov authored
    send_IPI_self is needed to resend irqs with IRQ_PENDING status when
    enabled.
    
    Checked with Ingo, and it's in 2.4-ac for some time.
    
    This should fix ide lost interrupts on UP with IO-APIC
    
    Ide trigers it this way:
     - disable_irq
     - do stuff that triggers IRQ.
     - irq is IRQ_PENDING
     - enable_irq
     - IRQ is lost, needs to be resend.
    
    I'll send the patch to fixup IDE disable_irq logic to Bart.
    d6d3baa5
hw_irq.h 3.08 KB