Re: 2.6.15-rc5-mm2: ehci_hcd crashes on load sometimes

["Rafael J. Wysocki" <rjw@sisk.pl>]

On Sunday, 11 December 2005 21:38, Andrew Morton wrote:
> "Rafael J. Wysocki" <rjw@sisk.pl> wrote:
> >
> > The ehci_hcd driver causes problems like this:
> > 
> > ehci_hcd 0000:00:02.2: EHCI Host Controller
> > ehci_hcd 0000:00:02.2: debug port 1
> > ehci_hcd 0000:00:02.2: new USB bus registered, assigned bus number 3
> > ehci_hcd 0000:00:02.2: irq 5, io mem 0xfebfdc00
> > usb 2-2: Product: USB Receiver
> > usb 2-2: Manufacturer: Logitech
> > usb 2-2: configuration #1 chosen from 1 choice
> > ehci_hcd 0000:00:02.2: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
> > Unable to handle kernel NULL pointer dereference at 00000000000002a4 RIP:
> > <ffffffff880ad9d0>{:ehci_hcd:ehci_irq+224}
> 
> Can you poke around in gdb, see which line it's dying at?

It looks like at the line 620.  At least here's what gdb told me:

Line 620 of "ehci-hcd.c" starts at address 0x69c3 <ehci_irq+211>
   and ends at 0x69e2 <ehci_irq+242>.
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