On Sat, Jul 14, 2012 at 16:20:12 -0400, Alan Stern wrote: > On Sat, 14 Jul 2012, Sami Farin wrote: ... > > > I'm still puzzled about the previous test, though. Is it possible that > > > you posted a usbmon trace that was taken without the quirk? > > > > That 1 MB test? 0.1% possible ;() > > No, I meant the test from yesterday. The first one you tried with the > quirk installed. Hard to prove now, usbmon traces do not seem to have timestamps or quirk info > > > Tell you what: Try capturing a single trace including both a 1-MB read > > > and your failing write test (and with the quirk present, of course). > > > If something strange is going on, that should show it. > > > > OK, I read 1 MB with dd, then mount it, then cp /dev/urandom . , then umount. > > > > $ cp /dev/urandom . > > cp: writing `./urandom': Input/output error > > cp: failed to extend `./urandom': Input/output error > > > > after mounting again, df shows 8568 KB used, but directory empty. > > > > quirktest-dmesg.txt > > https://docs.google.com/file/d/0B_EMXtsx7o56U20tWVVTSHFNRmM/edit > > > > quirktest-usbmon.txt > > https://docs.google.com/file/d/0B_EMXtsx7o56b1YxQVdkcFRxUm8/edit > > Hmmm... The test shows that a 32-KB write failed (in fact, the first > 32-KB write). > > It's possible there's something wrong with the memory card. Have you > tried using different cards? This card works OK when the reader is plugged into usb2 port. > The usbmon trace doesn't show any reason for the write failures; the > second bug interferes before the device can report a reason. Working > around that other bug isn't quite so easy as the first -- it requires a > kernel patch (below). With that patch in place, maybe the usbmon trace > will give a little more information. I try that patch maybe tomorrow, thanks. > Alan Stern > > > > Index: usb-3.5/drivers/usb/storage/unusual_devs.h > =================================================================== > --- usb-3.5.orig/drivers/usb/storage/unusual_devs.h > +++ usb-3.5/drivers/usb/storage/unusual_devs.h > @@ -2011,6 +2011,13 @@ UNUSUAL_DEV( 0x4146, 0xba01, 0x0100, 0x > "Micro Mini 1GB", > USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_NOT_LOCKABLE ), > > +/* Reported by Sami Farin <hvtaifwkbgefbaei@xxxxxxxxx> */ > +UNUSUAL_DEV( 0x8564, 0x4000, 0x0007, 0x0007, > + "Genesys", > + "GL3220", > + USB_SC_DEVICE, USB_PR_DEVICE, NULL, > + US_FL_BULK_IGNORE_TAG ), > + > /* > * Nick Bowler <nbowler@xxxxxxxxxxxxxxxx> > * SCSI stack spams (otherwise harmless) error messages. > -- Do what you love because life is too short for anything else. -- 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
