On Wed, Apr 14, 2010 at 23:55, Shi Jin <jinzishuai@xxxxxxxxx> wrote: > Thank Kay. Yes, I did check dmesg. In fact, this is how I know it when > hot plug works. > On ubuntu 9.10 and centos 5.4, the dmesg shows nothing while in FC12, > it shows messages like > [265565.693825] pci 0000:00:06.0: reg 10 io port: [0x00-0x3f] > [265565.694573] pci 0000:00:02.0: BAR 6: bogus alignment [0x0-0x0] flags 0x2 > [265565.694640] decode_hpp: Could not get hotplug parameters. Use defaults > [265565.701747] virtio-pci 0000:00:06.0: enabling device (0000 -> 0001) > [265565.702059] ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 11 > [265565.702077] virtio-pci 0000:00:06.0: PCI INT A -> Link[LNKB] -> > GSI 11 (level, high) -> IRQ 11 > [265565.702634] vdb: vdb1 vdb2 You can run: udevadm monitor add a volume to the host and check if you get events for new block devices. If you do, it's an issue with userspace in the system. Kay -- To unsubscribe from this list: send the line "unsubscribe linux-hotplug" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
