> Kenji Kaneshige > Thank you for the information. From the information, I understood > both acpiphp and pciehp handles the same slot, and failed powering > on the slot because those drivers detected adapter card didn't > present or MRL opened. But I still don't know why. Could you send > the following addtional information? Apologize for the delay. I tried hotplug of PCI express card on a vendor box (running 2.6.18.x) with PCI express slot. It looked a lot better. Here is dmesg output as soon a I hotplug and the device shows up in lspci !!! So I guess my mother board PCIe slot or BIOS is bad and looking for a looking for a low cost motherboard with working hotplug PCIe slot :) pciehp: pcie_isr: intr_loc 8 pciehp: pcie_isr: hp_register_read_word SLOT_CTRL with value 28 pciehp: pcie_isr: hp_register_read_word SLOT_STATUS with value 48 pciehp: pciehp: Presence/Notify input change. pciehp: Card present on Slot(0003_0003) pciehp: pcie_isr: Unmask Hot-plug Interrupt Enable pciehp: event_thread woken finished = 0 pciehp: Surprise Removal pciehp: hpc_get_power_status: SLOT_CTRL 58 value read 8 pciehp: hpc_get_attention_status: SLOT_CTRL 58, value read 8 pciehp: !!!!event_thread sleeping pciehp: event_thread woken finished = 0 pciehp: pciehp_surprise_rm_thread: adding bus:device(3:0) pciehp: board_added: slot device, slot offset, hp slot = 0, 0 ,0 pciehp: pcie_isr: hp_register_write_word SLOT_STATUS with value 1f pciehp: hpc_check_lnk_status: lnk_status = 3011 ACPI: PCI Interrupt 0000:03:00.0[A] -> GSI 17 (level, low) -> IRQ 177 PCI: Setting latency timer of device 0000:03:00.0 to 64 ACPI: PCI interrupt for device 0000:03:00.0 disabled pciehp: hpc_get_power_status: SLOT_CTRL 58 value read 28 pciehp: hpc_get_attention_status: SLOT_CTRL 58, value read 28 pciehp: !!!!event_thread sleeping Thanks much for your all help. Thanks, Krishna _________________________________________________________________ Windows Live™: E-mail. Chat. Share. Get more ways to connect. http://windowslive.com/online/hotmail?ocid=TXT_TAGLM_WL_HM_AE_Faster_022009-- 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
