ide driver loses flash

[darose-prQxUZoa2zOsTnJN9+BGXg at public.gmane.org (David Rosenstrauch)]

On 01/11/2010 06:18 PM, R. Luoma wrote:
> I have a system that runs off a RAM "disk" that occasionally
> mounts a flash drive for reading and writing
> and, when finished, unmounts the flash.
> 
> Every so often, the flash drive seems to disappear
> and I cannot remount the flash partitions.
> 
> dmesg gives messages like:
> 
>> hda: status timeout: status=0xd0 { Busy }
> 
>> hda: no DRQ after issuing WRITE
>> ide0: reset: master: error (0x00?)
>> hda: status error: status=0x08 { DataRequest }
> 
>> hda: drive not ready for command
>> hda: status error: status=0x00 { }
> 
> I can reboot the system and then access the flash again,
> but rebooting is a rather drastic option for several reasons.
> 
> Can anyone suggests what might be going wrong
> and how to fix it?
> 
> Thanks,

Don't know how to "fix" the problem.  But perhaps an alternative to 
rebooting might be:

modprobe -r usb-storage
modprobe usb-storage

HTH,

DR