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    Subjectrmmod uhci_hcd -> BUG: atomic counter underflow

    After rmmoding of uhci_hcd on fresh booted 2.6.21-rc3-mm2 I got this:

    BUG: atomic counter underflow at:
    [<c0104f0b>] show_trace_log_lvl+0x1a/0x30
    [<c01055f3>] show_trace+0x12/0x14
    [<c010567a>] dump_stack+0x16/0x18
    [<c01dc41b>] kref_put+0x4d/0xb2
    [<c01db754>] kobject_put+0x14/0x16
    [<c01db8a3>] kobject_unregister+0x22/0x25
    [<c024c987>] bus_remove_driver+0x75/0x82
    [<c024d3b8>] driver_unregister+0xb/0x18
    [<c01e7020>] pci_unregister_driver+0x13/0x73
    [<f88dbbd9>] uhci_hcd_cleanup+0xd/0x2d [uhci_hcd]
    [<c013fb69>] sys_delete_module+0x133/0x195
    [<c0103fe0>] syscall_call+0x7/0xb

    Note, that this is connected:
    Bus 004 Device 001: ID 0000:0000
    Bus 003 Device 001: ID 0000:0000
    Bus 002 Device 004: ID 0458:004c KYE Systems Corp. (Mouse Systems) Slimstar
    Pro Keyboard
    Bus 002 Device 003: ID 04b4:2050 Cypress Semiconductor Corp.
    Bus 002 Device 002: ID 045e:00f0 Microsoft Corp.
    Bus 002 Device 001: ID 0000:0000
    Bus 001 Device 001: ID 0000:0000
    Bus 005 Device 001: ID 0000:0000

    What other info do you want me to post?

    -- Jiri Slaby
    faculty of informatics, masaryk university, brno, cz
    e-mail: jirislaby gmail com, gpg pubkey fingerprint:
    B674 9967 0407 CE62 ACC8 22A0 32CC 55C3 39D4 7A7E

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      Last update: 2007-03-12 17:13    [W:0.040 / U:47.296 seconds]
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