On Fri, 30 Sep 2011, Eduard Bloch wrote: > Hell USB users, > > I have a little problem after upgrading to 3.1rc7 kernel built by > Debian, see > http://packages.debian.org/experimental/linux-image-3.1.0-rc7-amd64 . > > I attached my Android phone and attempted to use the USB mass storage > mode (this has been working for months with previous kernel versions). > But now, it seems like some communication trouble, two disk devices (sdc > and sdd) should be created instead of one. It sounds like something is wrong with your phone. Maybe a memory card isn't working. > This is not the worst > thing... now I have some processes which are permantently stuck in the D > state. > > root 12277 0.0 0.0 127484 2740 ? Dl 11:23 0:00 /usr/lib/udisks/udisks-daemon > root 12278 0.0 0.0 45096 400 ? D 11:23 0:01 udisks-daemon: polling /dev/sr0 /dev/sdc > root 23273 0.0 0.0 0 0 ? D 12:47 0:01 [kworker/0:0] > root 23573 0.0 0.0 0 0 ? D 13:07 0:00 [kworker/0:1] > root 23855 0.0 0.0 8316 300 ? D 13:15 0:00 /sbin/blkid -o udev -p /dev/sdd > > And they prevent my system from suspending, like: > > Sep 30 13:19:31 zombie kernel: [22287.229020] Freezing of tasks failed after 20.01 seconds (3 tasks refusing to freeze, wq_busy=0): > Sep 30 18:56:44 zombie kernel: [42519.792124] udisks-daemon D ffff880115b9e2c0 0 12277 1 0x00800004 > ... > > However, if I reattach the device, it connects correctly and I can > switch into usb storage mode and use the block device (consequently > registered as /dev/sde). > > I am attaching the logs in hope that someone can figure out what went > wrong there. You should post a usbmon trace showing what happens when the phone is plugged in. Instructions are in the kernel source file Documentation/usb/usbmon.txt. Alan Stern -- 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
