On Fri, 9 Sep 2005, Chris Clayton wrote: > > It would help if you included _all_ the kernel log messages in that file, > > not just the debugging messages. > > > That's all there was in the log for this particular boot. I've never looked > into > it before, but it looks as if syslogging on my system is configured to send > different stuff to different log files. I'll look into that this weekend.
Yes, sometimes distributions set things up that way. If you simply change the appropriate line in /etc/syslog.conf to say something like: kern.*: -/var/log/kernel that would be sufficient. > > Those messages mean the keyboard sent back a reply packet that was longer > > than it was supposed to be. More accurately, the keyboard's internal hub > > did this. The computer asked it for a 1-byte packet, and the response was > > more than 1 byte. This was on the interrupt-in endpoint. Note that > > according to the information you posted from lsusb, the maxpacket size for > > that endpoint is 1, so the hardware is definitely misbehaving. > > > > > I've also backed out one or two at a time, all the uhci related patches > > > (plus any > > > dependent patches to host or core) that went into -rc1 but that hasn't > > > made any > > > difference. Bearing in mind the new diagnostics, does anyone have a > > > suggestion > > > about where I should look next, please? > > > > There are lots of other things you can try. For example, what happens > > when you plug the keyboard into a different computer running the same > > versions of Linux? What happens if you don't plug the keyboard in until > > well after the bootup procedure is finished? > > > > Assuming you another means of getting in to your computer (logging in over > > a network, for instance), you can use the usbmon facility to trace the > > data being sent to/from the keyboard. Read about usbmon in > > Documentation/usb/usbmon.txt in the kernel source. This patch will help: > > > > http://marc.theaimsgroup.com/?l=linux-usb-devel&m=112561058119237&w=2 > > > > Here's what I get from /sys/kernel/debug/usbmon/5t when I tried to log in > using > the usb keyboard. I managed to type only the first four characters of my user > name > before key depressions ceased to be echoed to the console. > > d9f3dae0 323797083 C Ii:003:01 0 8 = 00000600 00000000 > d9f3dae0 323797121 S Ii:003:01 -115 8 = 00000600 00000000 > d9f3dae0 323909151 C Ii:003:01 0 8 = 00000000 00000000 > d9f3dae0 323909156 S Ii:003:01 -115 8 = 00000000 00000000 > d9f3dae0 323957185 C Ii:003:01 0 8 = 00000b00 00000000 > d9f3dae0 323957191 S Ii:003:01 -115 8 = 00000b00 00000000 > d9f3dae0 324037242 C Ii:003:01 0 8 = 00000000 00000000 > d9f3dae0 324037246 S Ii:003:01 -115 8 = 00000000 00000000 > d9f3dae0 324165333 C Ii:003:01 0 8 = 00001500 00000000 > d9f3dae0 324165338 S Ii:003:01 -115 8 = 00001500 00000000 > d9f3dae0 324245390 C Ii:003:01 0 8 = 00000000 00000000 > d9f3dae0 324245394 S Ii:003:01 -115 8 = 00000000 00000000 > d9f3dae0 324469550 C Ii:003:01 0 8 = 00000c00 00000000 > d9f3dae0 324469556 S Ii:003:01 -115 8 = 00000c00 00000000 > d9f3dae0 324549606 C Ii:003:01 0 8 = 00000000 00000000 > d9f3dae0 324549610 S Ii:003:01 -115 8 = 00000000 00000000 > d9ddc3e0 324701715 C Ii:002:01 -75 1 = 00 > d9ddc3e0 324701723 S Ii:002:01 -115 1 = 00 > > Does this help, please? This tells us what we already knew. The keyboard sent a few characters; they are the lines containing "C Ii:003:01". Then the keyboard's internal hub sent an invalid response; that's the second-to-last line with the -75, and after that the keyboard stopped responding entirely. A simple test would be to try a replacement keyboard. Alan Stern ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
