Firewire lockup (isight?), due to USB device

Discussion in 'Mac Pro' started by kodiak, Jun 5, 2006.

  1. kodiak macrumors newbie

    Joined:
    Mar 21, 2005
    #1
    hi,

    not sure where to post this... had an iMac ppc for long time,
    but some time back found my ipod and itunes would lockup during sync'ing

    i assume hardware failure, but whilst exploring this, due to someone else on macrumours experiencing similar, i found something odd..

    it would appear, that what happens is a USB card reader i have (using std apple driver), somehow locks up the firewire devices.

    Jun 5 18:27:01 mymac kernel[0]: /SourceCache/AppleFWOHCI/AppleFWOHCI-252.4.0/AppleFWOHCI.cpp 3539: ERROR: FireWire (OHCI) Apple ID 31 built-in: handleUnrecoverableErrorInt


    i can now reproduce using these steps:
    a) have ipod and isight plugged in
    b) turn on camera (ichat), start sync ipoc in itunes
    c) plug in card reader into USB
    * all ok at this point,
    d) unplug card reader
    * everything stops, itunes and ipod lock up, ichat/isight freeze
    * above error in system.log

    e) unplug isight, plug it back in
    * itunes/ipod restart copying, isight works

    any ideas?

    im hoping i can work around, but interested if this is
    i) card reader driver fault
    ii) isight fault
    iii) firewire fault

    note: latest versions of osx/firmware are in place
    note: the unplugging of card reader, is just to reproduce... i believe i had similar without unplugging, symptoms however were identical.

    can anyone else reproduce this? a known bug in osx?
     
  2. mad jew Moderator emeritus

    mad jew

    Joined:
    Apr 3, 2004
    Location:
    Adelaide, Australia
    #2
    I don't have an iSight or USB card reader so I can't help reproduce it, but at a guess I reckon it's a power issue in your USB/Firewire in which case it's an un-fixable aspect of your computer. iSights take up a pooh-load of power. :(
     

Share This Page