Re: EHCI reports message "lost IAA" (fwd)

Alan Stern schrieb:
> For both of you, here is a somewhat experimental patch you can try.  It 
> probably won't fix the problem, but it might make the problem easier to 
> diagnose.
> 
> Along with this patch you should enable CONFIG_USB_DEBUG.  If a problem 
> occurs, the contents of the files in /sys/class/usb_host/usb_hostN 
> (where N is the bus number of the EHCI controller in question) will be 
> of interest, especially the "async" and "registers" files.
> 
> This patch is for 2.6.24-rc4, but it ought to apply with little 
> difficulty to all recent kernels.
> 
> Alan Stern

Alan,

sorry, but it doesn't work for me.  The web cam still stops working
after some time (of not using it).

When the web cam works I see messages like these in /var/log/messages:

Dec 11 20:20:46 dv9000 ehci_hcd 0000:00:0b.1: itd_submit 4 urb
ffff81002f987000 ep6in len 65536, 32 pkts 1 uframes [ffff81003a291f00]
Dec 11 20:20:46 dv9000 ehci_hcd 0000:00:0b.1: irq status 0001 INT
Dec 11 20:20:46 dv9000 ehci_hcd 0000:00:0b.1: ehci_urb_done 4 urb
ffff81002e917400 ep6in status 0 len 0/65536
Dec 11 20:20:46 dv9000 ehci_hcd 0000:00:0b.1: itd_submit 4 urb
ffff81003de59c00 ep6in len 65536, 32 pkts 1 uframes [ffff81003a291f00]
Dec 11 20:20:47 dv9000 ehci_hcd 0000:00:0b.1: irq status 0001 INT
Dec 11 20:20:47 dv9000 ehci_hcd 0000:00:0b.1: ehci_urb_done 4 urb
ffff81002f987000 ep6in status 0 len 0/65536
Dec 11 20:20:47 dv9000 ehci_hcd 0000:00:0b.1: itd_submit 4 urb
ffff81002e917400 ep6in len 65536, 32 pkts 1 uframes [ffff81003a291f00]

/sys/class/usb_host/usb_host2/async is empty.
/sys/class/usb_host/usb_host2/registers is:

bus pci, device 0000:00:0b.1 (driver 10 Dec 2004)
EHCI Host Controller
EHCI 1.00, hcd state 1
ownership 01000001 linux
SMI sts/enable 0xc0080000
structural params 0x00101888
capability params 0x0000a086
status 0008 FLR
command 010009 (park)=0 ithresh=1 period=256 RUN
intrenable 37 IAA FATAL PCD ERR INT
uframe 34bd
port 1 status 001000 POWER sig=se0
port 2 status 001000 POWER sig=se0
port 3 status 003800 POWER OWNER sig=j
port 4 status 001005 POWER sig=se0 PE CONNECT
port 5 status 001000 POWER sig=se0
port 6 status 001000 POWER sig=se0
port 7 status 001000 POWER sig=se0
port 8 status 001000 POWER sig=se0
irq normal 1693 err 0 reclaim 6 (lost 0)
complete 1689 unlink 4


When the web cam is non responsive, a new start of xawt then shows these
messages:

Dec 11 21:05:11 dv9000 ehci_hcd 0000:00:0b.1: submit_async 4 urb
ffff81003a3f9b40 ep0out len 0, qtd ffff810026b830c0 [qh ffff81002384b0a0]
Dec 11 21:05:16 dv9000 ehci_hcd 0000:00:0b.1: IAA watchdog: status 8029
cmd 10029
Dec 11 21:05:16 dv9000 ehci_hcd 0000:00:0b.1: lost IAA
Dec 11 21:05:16 dv9000 ehci_hcd 0000:00:0b.1: ehci_urb_done 4 urb
ffff81003a3f9b40 ep0out status -2 len 0/0
Dec 11 21:05:16 dv9000 usb 2-4: xawtv timed out on ep0out len=0/0
Dec 11 21:05:16 dv9000 r5u870-0: could not set altsetting: -110
Dec 11 21:05:16 dv9000 ehci_hcd 0000:00:0b.1: submit_async 4 urb
ffff810033064900 ep0out len 0, qtd ffff810026b83060 [qh ffff81002384b0a0]
Dec 11 21:05:16 dv9000 ehci_hcd 0000:00:0b.1: ehci_urb_done 4 urb
ffff810033064900 ep0out status 0 len 0/0
Dec 11 21:05:16 dv9000 usb_endpoint usbdev2.3_ep81: ep_device_release
called for usbdev2.3_ep81
Dec 11 21:05:16 dv9000 usb_endpoint usbdev2.3_ep86: ep_device_release
called for usbdev2.3_ep86


/sys/class/usb_host/usb_host2/registers is:

bus pci, device 0000:00:0b.1 (driver 10 Dec 2004)
EHCI Host Controller
EHCI 1.00, hcd state 1
ownership 01000001 linux
SMI sts/enable 0xc0090000
structural params 0x00101888
capability params 0x0000a086
status 0009 FLR INT
command 010009 (park)=0 ithresh=1 period=256 RUN
intrenable 37 IAA FATAL PCD ERR INT
uframe 29e2
port 1 status 001000 POWER sig=se0
port 2 status 001000 POWER sig=se0
port 3 status 003800 POWER OWNER sig=j
port 4 status 001005 POWER sig=se0 PE CONNECT
port 5 status 001000 POWER sig=se0
port 6 status 001000 POWER sig=se0
port 7 status 001000 POWER sig=se0
port 8 status 001000 POWER sig=se0
irq normal 3265 err 0 reclaim 6 (lost 5)
complete 3309 unlink 8



Do you see something interesting in here?

Thanks
Peer

-------------------------------------------------------------------------
SF.Net email is sponsored by: 
Check out the new SourceForge.net Marketplace.
It's the best place to buy or sell services for
just about anything Open Source.
http://sourceforge.net/services/buy/index.php
_______________________________________________
[email protected]
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-devel