On Jul 02 Alan Stern wrote: > Also, I have no idea why this shows up with USB drives but not other > SCSI transports. A fluke of timing? A while ago I frequently observed oopses at removal of a FireWire CompactFlash card reader (an sd device which exposes itself as device with removable medium). At that time I wasn't motivated to track down whether the bug resided in the block or SCSI or firewire subsystem. The bug was apparently triggered because hald was polling the device like crazy for media changes, and that polling coincided with device hot unplug. Furthermore, FireWire CD-ROM removal never has been an exactly glitch-free experience because the SCSI stack occasionally went on to issue command retries for many minutes after device removal a.k.a. DID_NO_CONNECT. I don't remember crashes during FireWire CD-ROM removal, but it has been a while that I last used CD-ROM drives. I might test the card reader and a CD-ROM later next week on 3.0-rc6 if I find the time and the issue hadn't been resolved by then. I don't have hald anymore, but there are certainly other ways to force accesses during device shutdown. -- Stefan Richter -=====-==-== -=== ---== http://arcgraph.de/sr/ -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
