When hotplug out device, the kernel will release the device resource in the
kernel side, such as the fd sys file will disappear, and the irq will be
released. At this time, if igb uio driver still try to release this
resource, it will cause kernel crash. On the other hand, something like
interrupt
When hotplug out device, the kernel will release the device resource in the
kernel side, such as the fd sys file will disappear, and the irq will be
released. At this time, if igb uio driver still try to release this
resource, it will cause kernel crash. On the other hand, something like
interrupt
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