On Fri, Jan 18, 2013 at 11:35:49PM +0300, Sergei Shtylyov wrote: > Serialize usb-storage operations with usbfs and 'cat /proc/bus/usb/devices', > so that they cannot disturb storage by seemingly harmless control reads. > > This patch was adapted from 2.4 patches by Pete Zaitcev. The initial patch of > the series dates back to 2004 and it unfortunately wasn't applied to 2.6 in the > same form back then (it was applied in another form and immediately reverted). > Despite 8+ years passing from that moment, the vendors didn't stop producing > USB devices that require this kind of patch. Two recent examples are SanDisk > Cruzer Slice 8GB and Kingston DataTraveller 100 G2 32GB. In the latter case, > even the enumeration fails as the INQUIRY command normally takes 2.8 seconds to > finish, so 'udev' also comes into action with its control requests, with neither > completing normally. > > Signed-off-by: Sergei Shtylyov <sshtylyov@xxxxxxxxxxxxx> > Cc: stable@xxxxxxxxxxxxxxx > > --- > This patch is atop of 'usb-linus' branch of Greg's tree. > It has been boot tested with non-buggy USB stick only. I really want to see this tested on the hardware that it is supposed to fix the problem for, otherwise it's kind of pointless, right? thanks, greg k-h -- 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
