(added bugzilla to cc) On Sat, 7 Oct 2006 00:59:00 +0200 Ulrich Kunitz <[EMAIL PROTECTED]> wrote:
> On 06-10-06 14:01 Andrew Morton wrote: > > > regression? > > My tests say no. I can reproduce it on a 2.6.18-rc1, which didn't > include the zd1211rw driver. It seems to be hardware-dependent. I can > reproduce it on a x86/OHCI (SIS USB 1.0 controller rev 07), but > not on a PPC32/EHCI (NEC USB 2.0 controller rev 04)). > > lsusb -v must run as root, because it appears the USB hub will not be accessed > otherwise. A second lsusb -v hangs endlessly. The bug is always triggered on > the "buggy" hardware. > > The events around the disconnect look like this: > > [ 217.532000] usb 1-1: rx_urb_complete() urb d52260a0 error -110 > [ 217.532000] usb 1-1: rx_urb_complete() urb d5226160 error -110 > [ 217.536000] hub 1-0:1.0: port 1 disabled by hub (EMI?), re-enabling... > [ 217.536000] usb 1-1: USB disconnect, address 20 > [ 217.536000] usb 1-1: int_urb_complete() resubmit urb d52263a0 > [ 217.548000] zd1211rw 1-1:1.0: disconnect() > [ 217.560000] zd1211rw 1-1:1.0: zd_usb_iowrite16v() error in usb_bulk_msg(). > Er > [ 217.560000] zd1211rw 1-1:1.0: _zd_iowrite32v_locked() error -22 in > zd_usb_wri > [ 217.560000] zd1211rw 1-1:1.0: zd_usb_ioread16v() error in usb_bulk_msg(). > Err > [ 217.560000] zd1211rw 1-1:1.0: zd_ioread32v_locked() error: > zd_ioread16v_locke > [ 217.560000] zd1211rw 1-1:1.0: error ioread32(CR_REG1): -22 > [ 217.560000] zd1211rw 1-1:1.0: zd_usb_disable_int() urb d52263a0 killed > [ 217.592000] zd1211rw 1-1:1.0: disconnected > [ 218.552000] hub 1-0:1.0: Cannot enable port 1. Maybe the USB cable is bad? > [ 219.504000] hub 1-0:1.0: Cannot enable port 1. Maybe the USB cable is bad? > > The USB cable is of course not bad, because unplugging and replugging the > device does work. > Do you know where the kernel hung? A sysrq-T trace would be interesting. ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
