[USB] control queue full when using 2.6.0-test5 and apcupsd

[USB] control queue full when using 2.6.0-test5 and apcupsd

[M.S. Lucas]

Hello,

I'm having problems with my APC UPS using an USB cable and the 2.6.0-test5
kernel

I hope somebody can help me?

root@orion:/etc/apcupsd $ uname -a
Linux orion 2.6.0-test5 #4 SMP Sun Sep 14 20:06:21 CEST 2003 i686 GNU/Linux

root@orion:/etc/apcupsd $ lspci -v
02:08.0 USB Controller: NEC Corporation USB (rev 41) (prog-if 10 [OHCI])
        Subsystem: Unknown device 807d:0035
        Flags: bus master, medium devsel, latency 32, IRQ 19
        Memory at f7000000 (32-bit, non-prefetchable) [size=4K]
        Capabilities: [40] Power Management version 2

02:08.1 USB Controller: NEC Corporation USB (rev 41) (prog-if 10 [OHCI])
        Subsystem: Unknown device 807d:0035
        Flags: bus master, medium devsel, latency 32, IRQ 16
        Memory at f6800000 (32-bit, non-prefetchable) [size=4K]
        Capabilities: [40] Power Management version 2

02:08.2 USB Controller: NEC Corporation USB 2.0 (rev 02) (prog-if 20 [EHCI])
        Subsystem: Unknown device 807d:1043
        Flags: bus master, medium devsel, latency 32, IRQ 17
        Memory at f6000000 (32-bit, non-prefetchable) [size=256]
        Capabilities: [40] Power Management version 2

Using
root@orion:/etc/apcupsd $ apcupsd --version
apcupsd 3.10.6 (05 August 2003) debian

(apcupsd-devel_3.10.6.20030805-05Aug03-3_i386.deb)


After
root@orion:/etc/apcupsd $ modprobe hid
This is in my logfiles
Sep 15 15:56:14 orion kernel: drivers/usb/core/usb.c: registered new driver
hub
Sep 15 15:56:14 orion kernel: drivers/usb/core/usb.c: registered new driver
hiddev
Sep 15 15:56:14 orion kernel: drivers/usb/core/usb.c: registered new driver
hid
Sep 15 15:56:14 orion kernel: drivers/usb/input/hid-core.c: v2.0:USB HID
core driver
Sep 15 15:56:22 orion last message repeated 3 times


After
root@orion:/etc/apcupsd $ modprobe ohci-hcd
This is in my logfiles
Sep 15 15:57:22 orion kernel: ohci-hcd: 2003 Feb 24 USB 1.1 'Open' Host
Controller (OHCI) Driver (PCI)
Sep 15 15:57:22 orion kernel: ohci-hcd: block sizes: ed 64 td 64
Sep 15 15:57:22 orion kernel: ohci-hcd 0000:02:08.0: OHCI Host Controller
Sep 15 15:57:23 orion kernel: ohci-hcd 0000:02:08.0: irq 19, pci mem
f0c43000
Sep 15 15:57:23 orion kernel: ohci-hcd 0000:02:08.0: new USB bus registered,
assigned bus number 1
Sep 15 15:57:23 orion kernel: hub 1-0:0: USB hub found
Sep 15 15:57:23 orion kernel: hub 1-0:0: 3 ports detected
Sep 15 15:57:23 orion kernel: ohci-hcd 0000:02:08.1: OHCI Host Controller
Sep 15 15:57:24 orion kernel: ohci-hcd 0000:02:08.1: irq 16, pci mem
f0c45000
Sep 15 15:57:24 orion kernel: ohci-hcd 0000:02:08.1: new USB bus registered,
assigned bus number 2
Sep 15 15:57:24 orion kernel: hub 2-0:0: USB hub found
Sep 15 15:57:24 orion kernel: hub 2-0:0: 2 ports detected
Sep 15 15:57:24 orion kernel: hub 2-0:0: debounce: port 2: delay 100ms
stable 4 status 0x301
Sep 15 15:57:24 orion kernel: hub 2-0:0: new USB device on port 2, assigned
address 2
Sep 15 15:57:26 orion kernel: hiddev96: USB HID v1.10 Device [American Power
Conversion Smart-UPS 750 XL FW:630.3.I USB FW:1.] on usb-0000:02:08.1-2
Sep 15 15:57:30 orion last message repeated 3 times

root@orion:/etc/apcupsd $ ls -al /dev/usb/hid/hiddev0
crw-r--r--    1 root     root     180,  96 Jan  1  1970 /dev/usb/hid/hiddev0


in my /etc/apcupsd/apcupsd.conf i configured the following lines for my UPS
UPSCABLE usb
UPSTYPE usb

after
root@orion:/etc/apcupsd $ /etc/init.d/apcupsd-devel start
Starting APC UPS power management: apcupsd-devel.
This is in my logfiles
Sep 15 16:00:06 orion apcupsd[21908]: apcupsd 3.10.6 (05 August 2003) debian
startup succeeded
Sep 15 16:00:07 orion kernel: drivers/usb/input/hid-core.c: control queue
full
Sep 15 16:00:38 orion last message repeated 148089 times
Sep 15 16:00:53 orion last message repeated 84977 times
Sep 15 16:00:53 orion kernel: drivers/usb/input/hid-core.c: control queue
full
Sep 15 16:00:53 orion last message repeated 3163 times
Sep 15 16:00:53 orion kernel: drivers/usb/input/hid-core.c: control queue
full
Sep 15 16:00:53 orion last message repeated 731 times
Sep 15 16:00:53 orion kernel: drivers/usb/input/hid-core.c: control queue
full
Sep 15 16:00:54 orion last message repeated 2922 times
Sep 15 16:00:54 orion kernel: drivers/usb/input/hid-core.c: control queue
full
Sep 15 16:00:59 orion last message repeated 61195 times
Sep 15 16:00:59 orion kernel: drivers/usb/input/hid-core.c: control queue
full
Sep 15 16:00:59 orion last message repeated 13 times
Sep 15 16:00:59 orion kernel: drivers/usb/input/hid-core.c: control queue
full
Sep 15 16:01:00 orion last message repeated 11786 times
Sep 15 16:01:00 orion kernel: drivers/usb/input/hid-core.c: control queue
full
Sep 15 16:01:00 orion last message repeated 11 times
Sep 15 16:01:00 orion kernel: drivers/usb/input/hid-core.c: control queue
full
Sep 15 16:01:00 orion last message repeated 636 times
Sep 15 16:01:00 orion kernel: drivers/usb/input/hid-core.c: control queue
full
Sep 15 16:01:00 orion last message repeated 404 times
Sep 15 16:01:00 orion kernel: drivers/usb/input/hid-core.c: control queue
full
Sep 15 16:01:00 orion last message repeated 282 times
Sep 15 16:01:00 orion kernel: drivers/usb/input/hid-core.c: control queue
full
Sep 15 16:01:01 orion last message repeated 1409 times
Sep 15 16:01:01 orion kernel: drivers/usb/input/hid-core.c: control queue
full
Sep 15 16:01:01 orion last message repeated 284 times
Sep 15 16:01:01 orion kernel: drivers/usb/input/hid-core.c: control queue
full
Sep 15 16:01:01 orion last message repeated 749 times
Sep 15 16:01:01 orion kernel: drivers/usb/input/hid-core.c: control queue
full
Sep 15 16:01:01 orion last message repeated 14 times
Sep 15 16:01:01 orion kernel: drivers/usb/input/hid-core.c: control queue
full
Sep 15 16:01:03 orion last message repeated 20233 times
Sep 15 16:01:03 orion kernel: ue full

Can somebody please give me a hint where to look.

Thanks in advance

Maurice Lucas

Re: [linux-usb-devel] [USB] control queue full when using 2.6.0-test5 and apcupsd

[David Brownell]

M.S. Lucas wrote:
> Hello,
> 
> I'm having problems with my APC UPS using an USB cable and the 2.6.0-test5
> kernel
> 
> I hope somebody can help me?
> 
> ...

So it looks like it enumerated OK, but then the HID code misbehaved.


> root@orion:/etc/apcupsd $ /etc/init.d/apcupsd-devel start
> Starting APC UPS power management: apcupsd-devel.
> This is in my logfiles
> Sep 15 16:00:06 orion apcupsd[21908]: apcupsd 3.10.6 (05 August 2003) debian
> startup succeeded
> Sep 15 16:00:07 orion kernel: drivers/usb/input/hid-core.c: control queue
> full
> Sep 15 16:00:38 orion last message repeated 148089 times
> Sep 15 16:00:53 orion last message repeated 84977 times
> Sep 15 16:00:53 orion kernel: drivers/usb/input/hid-core.c: control queue
> full
> Sep 15 16:00:53 orion last message repeated 3163 times
> ...etc

Actually the HID code isn't doing control queueing very intelligently.

As of 2.6, it no longer needs to avoid passing multiple control requests
to the same device ... the HCDs now queue them like any other kind of
transfer(*).  So the "good" fix there would be to the HID code, getting
rid of a fixed size queue.  Or, you could make a "dirty" fix and just
increase the queue size again ... it's already huge (so that it'll
handle some MGE UPSes), make it even more so.

- Dave

(*) However there's still a patch pending to fix a bug in the UHCI driver,
     where it inappropriately patches up data toggles in control transfers
     in certain cases with queue length greater than one URB.  You're using
     OHCI (or EHCI), and should have no problem with 2.6.0-test5 kernels.