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From: Giovanni Trematerra <giovanni.trematerra@gmail.com>
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Cc: usb@freebsd.org, stable@freebsd.org,
	Jeremy Chadwick <freebsd@jdc.parodius.com>
Subject: Re: 7.3: instant panic upon connecting a umass
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2010/4/7 Mikhail T. <mi+thun@aldan.algebra.com>:
> Jeremy Chadwick =CE=C1=D0=C9=D3=C1=D7(=CC=C1):
>> Regarding your problem: it likely has nothing to do with SMP, so don't
>> worry about that aspect of it.
> Thanks for the reassuring response, Jeremy. If this is not about SMP,
> then there is a (bad) regression -- the 7.2-kernel from March 5 never
> crashed this way... I connected the same phone numerous times, as well
> as the camera...
>
> I shall await response from USB-maintainers...

While in the meantime why not compile a kernel with -DUSB_DEBUG and
report back the trace before the panic?

If it's not an issue for you, you could try to upgrade to 8.0-RELEASE
that has a completely new usb stack as Jeremy pointed out.

Thanks

--
Gianni