On Sun, 18 Jan 2009, Igor Lumpus wrote: > > So your Western Digital drive (or its USB interface) has a bug. Can > > you collect the equivalent kern.log for the USB flash drive? I > > wouldn't expect two different sorts of devices to have the same bug. > I have now attached four more usbmon logs with different memory sticks > and different USB HD. > They all show the same symptom, takes for ever to be mounted and when > mounted it is the ohci_hcd being used. > > Can you have a look at them Alan and see if it something common between them? Those logs are no use. They all show what is happening on the OHCI bus, and we already know that it's working okay. We need to see what is happening on the EHCI bus (bus 5, not bus 2). > I find it very unlikely that the devices are all 'Bad' and since they > work flawlessly under 32bit kernel I am assuming that the 64bit kernel > has a bug (maybe due to my HW but it is the same HW when running 32 > bit that works....) That's possible. Hard to tell what the bug is, though. Does your system have more than 4 GB of RAM? If it does, you might try testing with a kernel boot-line parameter to decrease the total memory, for example, mem=3G. > I have now tested with latest kernel for Ubuntu: > 2.6.28-4-generic #11-Ubuntu SMP Fri Jan 16 21:50:52 UTC 2009 x86_64 GNU/Linux > and here it works with ehci_hcd directly (5 seconds before insert of > USB until mounted) > Unfortunately the usbmon module was not availible but I do not know > how that could help out finding the root cause it did not work in > 2.6.27-9 (or -7) kernel. It probably can't. Alan Stern P.S.: If you don't mind me asking, why does your name sometimes show up as "Igor Lopez" and sometimes as "Igor Lumpus"? -- 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
