On Fri, 1 Nov 2002, David Brownell wrote:
>
> >> Oct 31 22:58:47 tove kernel: drivers/usb/core/message.c: usb_control/bulk_msg:
>timeout
> >> Oct 31 22:58:47 tove kernel: drivers/usb/host/ohci-dbg.c: UNLINK dc8e2b1c
>dev:4,ep=0-I,CTRL,flags:0,len:0/1,stat:-2
> >> Oct 31 22:58:47 tove kernel: drivers/usb/core/hcd.c: 00:02.2: wait for
>giveback urb dc8e2b1c
> >>
> >>and clearly the "wait for giveback" never happens. (There are some other
> >>messages too, but they seem to be for the storage devices that do work)
>
> One thing that might help is to provide the /sys/bus/pci/devices/00:02.2/async
> file contents when this happens. That'll be present since you enabled debug
> support, and it will show what your queues look like. Sometimes seeing that
> information has been enough to zoom right in on the problem, saving a bunch of
> time on mental "what if ..." experiments.
Here:
torvalds@tove:~> cat /sys/bus/pci/devices/00:02.2/async
ed/c17e7180 fs dev4 ep2-in max 64 00401104 DATA0
td c17e8180 in 4096 cc=f urb c17d64bc (f0d00000)
td c17e8080 in 4096 cc=f urb c17d64bc (f0140000)
ed/c17e71c0 fs dev4 ep1-out max 64 00400884 DATA0
td c17e8240 out 4096 cc=f urb c17d6544 (f00c0000)
Maybe that tells you something..
Linus
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