5c0927e108
- this patch fixes a deadlock which may occur if we get a spurious interrupt while calibrating clocks during the boot time. Since we never handle interrupts while in the kernel (BKL locked) the interrupt code locks the lock. This is a different situation, a corner case, boot time only. We do not return to userspace but to the kernel, so the BKL is not unlocked. So we need irq handler which leaves the BKL unlocked. The clock handler does it already, this patch adds a dummy spurious irq handler for the same reason. It is better to handle the situation this way to keep the normal runtime code simple. |
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