Apologies if I've chosen the wrong mailing list to start with. I'm not certain where this hickup is happening, so I'm not sure who to talk to. I have a laptop (Lenovo w510) with an Expresscard/34 slot. If I hotplug my multi-i/o card, it works fine (well, it's detected and is enumerated): acpiphp_glue: _handle_hotplug_event_bridge: Bus check notify on \_SB_.PCI0.EXP4 acpiphp_glue: _handle_hotplug_event_bridge: re-enumerating slots under \_SB_.PCI0.EXP4 pci 0000:05:00.0: [9710:9912] type 0 class 0x000700 pci 0000:05:00.0: reg 10: [io 0x0000-0x0007] pci 0000:05:00.0: reg 14: [mem 0x00000000-0x00000fff] pci 0000:05:00.0: reg 24: [mem 0x00000000-0x00000fff] pci 0000:05:00.0: PME# supported from D3hot D3cold pci 0000:05:00.1: [9710:9912] type 0 class 0x000700 pci 0000:05:00.1: reg 10: [io 0x0000-0x0007] pci 0000:05:00.1: reg 14: [mem 0x00000000-0x00000fff] pci 0000:05:00.1: reg 24: [mem 0x00000000-0x00000fff] pci 0000:05:00.1: PME# supported from D3hot D3cold pci 0000:05:00.2: [9710:9912] type 0 class 0x000701 pci 0000:05:00.2: reg 10: [io 0x0000-0x0007] pci 0000:05:00.2: reg 14: [io 0x0000-0x0007] pci 0000:05:00.2: reg 18: [mem 0x00000000-0x00000fff] pci 0000:05:00.2: reg 24: [mem 0x00000000-0x00000fff] pci 0000:05:00.2: PME# supported from D3hot D3cold pci 0000:05:00.0: BAR 1: assigned [mem 0xf0000000-0xf0000fff] pci 0000:05:00.0: BAR 5: assigned [mem 0xf0001000-0xf0001fff] pci 0000:05:00.1: BAR 1: assigned [mem 0xf0002000-0xf0002fff] pci 0000:05:00.1: BAR 5: assigned [mem 0xf0003000-0xf0003fff] pci 0000:05:00.2: BAR 2: assigned [mem 0xf0004000-0xf0004fff] pci 0000:05:00.2: BAR 5: assigned [mem 0xf0005000-0xf0005fff] pci 0000:05:00.0: BAR 0: assigned [io 0x3000-0x3007] pci 0000:05:00.1: BAR 0: assigned [io 0x3008-0x300f] pci 0000:05:00.2: BAR 0: assigned [io 0x3010-0x3017] pci 0000:05:00.2: BAR 1: assigned [io 0x3018-0x301f] pci 0000:05:00.0: no hotplug settings from platform pci 0000:05:00.1: no hotplug settings from platform pci 0000:05:00.2: no hotplug settings from platform acpiphp_glue: acpiphp_check_bridge: 1 enabled, 0 disabled Serial: 8250/16550 driver, 0 ports, IRQ sharing enabled serial 0000:05:00.0: enabling device (0000 -> 0003) Couldn't register serial port 0000:05:00.0: -28 serial 0000:05:00.1: enabling device (0000 -> 0003) Couldn't register serial port 0000:05:00.1: -28 parport_serial 0000:05:00.2: enabling device (0000 -> 0003) parport0: PC-style at 0x3010 (0x3018), irq 17, using FIFO [PCSPP,TRISTATE,COMPAT,ECP] If I eject my multi-i/o card and hotplug my esata card (Marvell 91xx based), nothing is seen: acpiphp_glue: _handle_hotplug_event_bridge: Bus check notify on \_SB_.PCI0.EXP4 acpiphp_glue: _handle_hotplug_event_bridge: re-enumerating slots under \_SB_.PCI0.EXP4 acpiphp_glue: acpiphp_check_bridge: 0 enabled, 1 disabled acpiphp_glue: _handle_hotplug_event_bridge: Bus check notify on \_SB_.PCI0.EXP4 acpiphp_glue: _handle_hotplug_event_bridge: re-enumerating slots under \_SB_.PCI0.EXP4 acpiphp_glue: acpiphp_check_bridge: 0 enabled, 0 disabled If I do: echo 1 > /sys/bus/pci/rescan pci 0000:05:00.0: [1b4b:9123] type 0 class 0x000106 pci 0000:05:00.0: reg 10: [io 0x8000-0x8007] pci 0000:05:00.0: reg 14: [io 0x8040-0x8043] pci 0000:05:00.0: reg 18: [io 0x8100-0x8107] pci 0000:05:00.0: reg 1c: [io 0x8140-0x8143] pci 0000:05:00.0: reg 20: [io 0x800000-0x80000f] pci 0000:05:00.0: reg 24: [mem 0x00900000-0x009007ff] pci 0000:05:00.0: reg 30: [mem 0xd0000000-0xd000ffff pref] pci 0000:05:00.0: PME# supported from D3hot pci 0000:05:00.0: BAR 6: assigned [mem 0xf2800000-0xf280ffff pref] pci 0000:05:00.0: BAR 5: assigned [mem 0xf0000000-0xf00007ff] pci 0000:05:00.0: BAR 4: assigned [io 0x3020-0x302f] pci 0000:05:00.0: BAR 0: assigned [io 0x3000-0x3007] pci 0000:05:00.0: BAR 2: assigned [io 0x3030-0x3037] pci 0000:05:00.0: BAR 1: assigned [io 0x3038-0x303b] pci 0000:05:00.0: BAR 3: assigned [io 0x303c-0x303f] ahci 0000:05:00.0: irq 46 for MSI/MSI-X ahci 0000:05:00.0: controller can do FBS, turning on CAP_FBS ahci 0000:05:00.0: AHCI 0001.0200 32 slots 8 ports 6 Gbps 0xff impl SATA mode ahci 0000:05:00.0: flags: 64bit ncq fbs pio scsi28 : ahci <snip x26> scsi 35:0:0:0: Processor Marvell 91xx Config 1.01 PQ: 0 ANSI: 5 scsi 35:0:0:0: Attached scsi generic sg5 type 3 It's detected and works fine. Is this a PCI bug, an ACPI bug, a hardware issue, or working as designed? Is there a 'better' way I should be handling this use case? -- 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
