Re: Strange USB crash

[Paul Goyette <paul%whooppee.com@localhost>]

On Sat, 5 Jun 2010, Jonathan A. Kollasch wrote:

> > My questions to the usb experts:
> >
> > 1) should I just rebuild without DIAGNOSTIC and ignore the error?
> >
> > 2) Is "something bad(tm)" going to happen later if it does double-free?
> >
> > 3) Is this indicative of some other underlying problem?
> >
> >    And if so, how would I go about finding and fixing it?
> >
> > For now, I'm going to remove DIAGNOSTIC, since I really need my nfs
> > server to be relatively stable.  :)
>
> Sure this isn't kern/30398?

Pretty sure.  The issue in 30398 was a result of test that happens very 
early in the ohci_softintr() code, around line 1294 (where it is 
"reversing the done list"):

                        DPRINTFN(5,("add ITD %p\n", sitd));
                        continue;
                }
    >>>>        panic("ohci_softintr: addr 0x%08lx not found", (u_long)done);
        }

        DPRINTFN(10,("ohci_softintr: sdone=%p sidone=%p\n", sdone, sidone));


My panic is happening quite a bit later in the processing, after we've 
completed the transfer and are deaaling with "process_done" stuff.



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