On Mon, 25 May 2009, Kay Sievers wrote: > On Mon, 2009-05-25 at 11:49 -0400, Alan Stern wrote: > > Since this appears to be a bug in the SCSI layer, let's add some SCSI > > people to the CC: list. > > > > To summarize the problem: The SCSI core tries to unregister a host > > while its sysfs directory is still non-empty because the target hasn't > > been unregistered yet. > > > Can you provide more of the context? I'd like to see the log starting > > from when these devices were first registered. > > I was able to trigger it with a USB storage device only, connected to a > hub, and I removed the hub from the host. Okay, it's a long log dump, but useful. Evidently the problem is caused by the fact that scsi_target_reap() is called by scsi_device_dev_release_usercontext() instead of by __scsi_remove_device() (both functions in drivers/scsi/scsi_sysfs.c). There's probably a reason for this, but I don't know what it is. Maybe James can explain. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
