Comment 38 for bug 17881

Same problems here with Fiesty (AMD64), a Nokia 3110c cell phone, a Sony-Ericsson W300i phone and a Canon PowerShot G6 digital camera. The system just randomly hangs with nothing particularly interesting in system logs. On the SE phone this caused file system corruption and bricked the device after a system freeze while copying files to the phone flash memory. The strange thing is that other USB mass storage devices, like external hard drives, seem to work fine. It's just the flash memory based devices that cause these serious lockups.

I've seen this happen on Ubuntu Edgy (2.6.17-11), now on Feisty (2.6.20-16) and on even on Feisty with a custom 2.6.21.1 kernel. At least it's consistent... *sigh*