id,summary,reporter,owner,description,type,status,priority,component,version,resolution,keywords,cc,guest,host 5255,Hard lockup on iPhone sync,jlintz,,"I used to experience random hard lockups with virtualbox running, never could really pin point it down to anything, sometimes I'd leave my Guest host running for days and come back to my computer frozen and have to power cycle, other times it would just be in the middle of me using the computer. Within the past month I noticed now , without fail, everytime I go and try to sync my iphone through my guest xp install, it will cause a hard lockup within a couple minutes of the sync. Nothing is left in the logs. The last thing I see in /var/log/messages is... Oct 18 02:47:05 ziggy kernel: [33082.109019] usb 1-6: new high speed USB device using ehci_hcd and address 5 Oct 18 02:47:05 ziggy kernel: [33082.247505] usb 1-6: configuration #1 chosen from 4 choices I have tried turning off 3D acceleration, enabling and disabling hardware extensions. Not sure what other options I should try. Most recently I tried disabling USB 2.0, but that did not work either. Unfortunately I can't pinpoint at what version the lockups began to happen consistently. Please let me know if there is any other information I should gather. Thanks for the help in advance Kernel: Linux ziggy 2.6.28-15-generic #52-Ubuntu SMP VBox Version: 3.0.8-53138_Ubuntu_jaunty Host: Ubuntu 9.04 Guest: Windows XP 32 bit",defect,closed,critical,USB,VirtualBox 3.0.8,obsolete,lockup freeze usb iphone sync,,Windows,Linux