[Bug 68639] 3 usb hubs disappeared from lspci

[Nicolas Gama]

Public bug reported:

Binary package hint: linux-image-2.6.15-27-k7

in the kernel 2.6.15-27-k7, three internal usb hubs are not recognized (not even listed in lspci)
in the kernel 2.6.15-26-k7, everything works fine.

here is the part of lspci -tv for kernel 2.6.15-26-k7:
-----------------------------------------------------------------
 \-[00]-+-06.0-[01]--+-00.0  Advanced Micro Devices [AMD] AMD-8111 USB
        |            +-00.1  Advanced Micro Devices [AMD] AMD-8111 USB
        |            +-03.0  NEC Corporation USB
        |            +-03.1  NEC Corporation USB
        |            +-03.2  NEC Corporation USB 2.0
        |            \-04.0  Texas Instruments TSB43AB22/A IEEE-1394a-2000 Controller (PHY/Link)
--------------------------------------------------------------

the same part in lspci -tv for kernel 2.6.15-27-k7:
--------------------------------------------------------------
 \-[00]-+-06.0-[01]--+-00.0  Advanced Micro Devices [AMD] AMD-8111 USB
        |            +-00.1  Advanced Micro Devices [AMD] AMD-8111 USB
        |            \-04.0  Texas Instruments TSB43AB22/A IEEE-1394a-2000 Controller (PHY/Link)
----------------------------------------------------------------
(only the three NEC USB... are missing)

In /var/log/messages, the only difference occurs during the loading of
the module ohci_hcd, where the usb hubs should be listed, but aren't in
2.6.15-27.

the option noapic does not change anything.

Note that there are no PS/2 ports, so the keyboard and the mouse are
connected to these USB ports (they work in the BIOS and in Grub, but are
desactivated just after leaving the grub)

Maybe it is a bug during the parsing of ACPI tables, or maybe this
parsing occurs too early.

** Affects: linux-source-2.6.15 (Ubuntu)
     Importance: Undecided
         Status: Unconfirmed

-- 
3 usb hubs disappeared from lspci
https://launchpad.net/bugs/68639