On 11/01/2012 12:48 AM, Yinghai Lu wrote: > On Wed, Oct 31, 2012 at 4:09 AM, Yasuaki Ishimatsu > <isimatu.yasuaki@xxxxxxxxxxxxxx> wrote: >>> patch 2. Introduce a new function container_device_remove() to handle >>> ACPI_NOTIFY_EJECT_REQUEST event for container. >> >> If container device contains memory device, the function is >> very danger. As you know, we are developing a memory hotplug. >> If memory has kernel memory, memory hot remove operations fails. >> But container_device_remove() cannot realize it. So even if >> the memory hot remove operation fails, container_device_remove() >> keeps hot remove operation. Finally, the function sends _EJ0 >> to firmware. In this case, if the memory is accessed, kernel >> panic occurs. >> The example is as follows: >> >> https://lkml.org/lkml/2012/9/26/318 > > so what is the overall status memory hot-remove? > how are following memory get processed ? > 1. memory for kernel text, module > 2. page table > 3. vmemmap > 4. memory for kmalloc, for dma Hi Yinghai, I have given a talk about the CPU/memory/PCI host bridge hotplug current status and next step plan on China Linux Kernel Developer Conference, please refer to https://github.com/downloads/jiangliu/linux/ACPI%20Based%20System%20Device%20Dynamic%20Reconfiguration.pdf Thanks! Gerry > -- > To unsubscribe from this list: send the line "unsubscribe linux-acpi" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
