linux-kernel - Re: USB OOPS 2.6.25-rc2-git1

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Date:	Tue, 19 Feb 2008 16:32:35 -0800
From:	David Brownell <david-b@...bell.net>
To:	Andre Tomt <andre@...t.net>
Cc:	linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org
Subject: Re: USB OOPS 2.6.25-rc2-git1

On Tuesday 19 February 2008, Andre Tomt wrote:
> 
> > Can you try this diagnostic patch, to see if it reports any messages
> > about IAA and/or IAAD oddities?  There's surely a quick workaround
> > for this, but I'd rather understand the root cause before patching.
> 
> Doesn't seem to have triggered anything. dmesg attached in case I missed 
> anything.

You don't seem to have enabled CONFIG_USB_DEBUG, as the patch instructions
say is needed to get such diagnostics ... I can tell because the startup
messages from USB are pretty minimal.  (See appended, vs what you sent...)

Please try again with USB debugging enabled.

- Dave

ehci_hcd 0000:00:02.2: new USB bus registered, assigned bus number 3
ehci_hcd 0000:00:02.2: reset hcs_params 0x102486 dbg=1 cc=2 pcc=4 !ppc ports=6
ehci_hcd 0000:00:02.2: reset portroute 0 0 1 1 1 0 
ehci_hcd 0000:00:02.2: reset hcc_params a086 caching frame 256/512/1024 park
ehci_hcd 0000:00:02.2: park 0
ehci_hcd 0000:00:02.2: reset command 080b02 park=3 ithresh=8 period=1024 Reset HALT
PCI: cache line size of 64 is not supported by device 0000:00:02.2
ehci_hcd 0000:00:02.2: supports USB remote wakeup
ehci_hcd 0000:00:02.2: irq 22, io mem 0xe8004000
ehci_hcd 0000:00:02.2: reset command 080b02 park=3 ithresh=8 period=1024 Reset HALT
ehci_hcd 0000:00:02.2: init command 010009 (park)=0 ithresh=1 period=256 RUN
ehci_hcd 0000:00:02.2: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
...

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