On Thu, 25 Mar 2010, Alan Stern wrote:
On Thu, 25 Mar 2010, Justin Piszcz wrote:
> # cat /sys/kernel/debug/usb/devices
>
> T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 8
> B: Alloc= 26/900 us ( 3%), #Int= 2, #Iso= 0
> D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
> P: Vendor=1d6b ProdID=0001 Rev= 2.06
> S: Manufacturer=Linux 2.6.33 ohci_hcd
> S: Product=OHCI Host Controller
> S: SerialNumber=0000:00:0b.0
> C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA
> I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
> E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms
>
> T: Bus=02 Lev=01 Prnt=01 Port=04 Cnt=01 Dev#= 2 Spd=1.5 MxCh= 0
> D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
> P: Vendor=413c ProdID=2005 Rev= 1.05
> S: Manufacturer=DELL
> S: Product=DELL USB Keyboard
> C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=100mA
> I:* If#= 0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=01 Driver=usbhid
> E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=10ms
>
> T: Bus=02 Lev=01 Prnt=01 Port=05 Cnt=02 Dev#= 3 Spd=1.5 MxCh= 0
> D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
> P: Vendor=046d ProdID=c018 Rev=43.01
> S: Manufacturer=Logitech
> S: Product=USB Optical Mouse
> C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=100mA
> I:* If#= 0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=02 Driver=usbhid
> E: Ad=81(I) Atr=03(Int.) MxPS= 5 Ivl=10ms
All right, the problematic mouse is attached to bus 2 (as is the
keyboard). So the next step is to run a kernel with CONFIG_USB_DEBUG
enabled. When the mouse stops working, go to
/sys/kernel/debug/usb/ohci/0000:00:0b.0 and see what the various files
in that directory contain. Also, check if any additional debugging
info shows up in the system log.
Ok, done, it froze up again:
# cat async
#
# cat periodic
size = 32
0 [117]: ed8/f674a040 (ls dev2 ep1in-int qlen 1 max 8 00083082)
1 [ 98]: ed8/f674a0c0 (ls dev3 ep1in-int qlen 1 max 5 00053083)
8 [117]: ed8/f674a040
9 [ 98]: ed8/f674a0c0
16 [117]: ed8/f674a040
17 [ 98]: ed8/f674a0c0
24 [117]: ed8/f674a040
25 [ 98]: ed8/f674a0c0
# cat registers
bus pci, device 0000:00:0b.0
OHCI Host Controller
ohci_hcd
OHCI 1.0, NO legacy support registers
control 0x68f RWE RWC HCFS=operational IE PLE CBSR=3
cmdstatus 0x00000 SOC=0
intrstatus 0x00000024 FNO SF
intrenable 0x8000004a MIE RHSC RD WDH
ed_controlhead 3674a080
hcca frame 0x61e7
fmintvl 0xa7782edf FIT FSMPS=0xa778 FI=0x2edf
fmremaining 0x80002565 FRT FR=0x2565
periodicstart 0x2a2f
lsthresh 0x0628
hub poll timer off
roothub.a 01000208 POTPGT=1 NPS NDP=8(8)
roothub.b 00000000 PPCM=0000 DR=0000
roothub.status 00008000 DRWE
roothub.portstatus [0] 0x00000100 PPS
roothub.portstatus [1] 0x00000100 PPS
roothub.portstatus [2] 0x00000100 PPS
roothub.portstatus [3] 0x00000100 PPS
roothub.portstatus [4] 0x00000303 LSDA PPS PES CCS
roothub.portstatus [5] 0x00000303 LSDA PPS PES CCS
roothub.portstatus [6] 0x00000100 PPS
roothub.portstatus [7] 0x00000100 PPS
Nothing unusal in dmesg:
[ 30.569377] usb 2-5:1.0: uevent
[ 30.572365] usb 2-6:1.0: uevent
[ 1053.663314] usb usb1: uevent
[ 1053.663404] usb 1-0:1.0: uevent
[ 1053.663455] usb usb2: uevent
[ 1053.663530] usb 2-0:1.0: uevent
[ 1053.663582] usb 2-5: uevent
[ 1053.663656] usb 2-5:1.0: uevent
[ 1053.663706] usb 2-6: uevent
[ 1053.663777] usb 2-6:1.0: uevent
<ends here>
Anything else worth gathering?
Does the above output show the problem?
BTW this keyboard and mouse were used on another system for 4+ years without
any problems, so it is not a device issue.
Justin.
> > Suppose you don't run X at all. Do the mouse and keyboard eventually
> > stop working even then?
> I have not tried that, the reason I use the host locally is for X.
You should try it anyway. If the failure still occurs, then you can
rule out any connection with X or the nVidia graphics.
It takes a very long time for it to happen when I want it to happen, but
if the above output does not help/this bug cannot be found/fixed, I can try
that too.
Justin.
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