Pack of CAM improvements

[Alexander Motin]

Diego Depaoli wrote:
> On Fri, Jan 29, 2010 at 2:06 PM, Alexander Motin <mav at freebsd.org> wrote:
>> Diego Depaoli wrote:
>>> On Sun, Jan 24, 2010 at 5:48 PM, Alexander Motin <mav at freebsd.org> wrote:
>>>> New patch version should handle this and some other problems:
>>>> http://people.freebsd.org/~mav/cam-ata.20100124.patch
>>> I didn't yet test in depth your patch but...
>>> - ogmrip doesn't more freeze the system
>>> - while the system boots, closing the optical drive's tray with a
>>> video dvd inserted, I get a reproducible (for me) panic.
>> If you wish it to be fixed - you had to give much more info.
> handwritten
> ------------------------
> cd0: \ukD [ua?

What's that? What was before it? Enable verbose boot messages to get
more info.

> uhub2: 6 ports with 6 removable, self powered
> uhub5: 6 ports with 6 removable, self powered
> 
> fatal trap 18: integer divide fault while in kernel mode
> cpuid=1, apic id=01
> instruction pointer = 0x20:0xc057efcd

If you have kernel.debug, you may use
addr2line -e kernel.debug 0xc057efcd
to get source line number, where it crashed. But stack back trace would
be better.

-- 
Alexander Motin