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Date:      Sat, 10 Sep 2016 09:04:14 -0700
From:      Yuri <yuri@rawbw.com>
To:        Ben Woods <woodsb02@gmail.com>
Cc:        "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>
Subject:   Re: Search for SANE scanners freezes the system
Message-ID:  <11f0efa3-cb9f-9a99-48bf-ae1a13d31aaa@rawbw.com>
In-Reply-To: <CAOc73CAoTq5R%2B6UP4dr8hvKMBPFGD7JcwqEe8v_mHv1aKD06aw@mail.gmail.com>
References:  <6b3e68d6-9add-bb25-9bbe-58d1721ab9d1@rawbw.com> <CAOc73CAoTq5R%2B6UP4dr8hvKMBPFGD7JcwqEe8v_mHv1aKD06aw@mail.gmail.com>

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On 09/09/2016 17:33, Ben Woods wrote:
> Can you please define more what you mean by "freezes the system"?
>
> Does it panic the kernel (which either reboots itself or drops you to a
> debugging console)?
>
> Does the command line just not output anything and not return to the
> prompt? In this case, maybe a Ctrl+c will exit the scanimage program and
> return you to the prompt?
>
> Or does it freeze your scanner (I.e. The impact is on your scanner, leaving
> your FreeBSD machine running fine)?


System doesn't panic, it just stops, the same image stays on the 
graphics screen, keyboard/mouse become dead, and it doesn't respond to 
the network queries.

I am thinking that this command sends some unusual broadcasts that 
possibly expose some bug. I think I can reproduce it reliably on my 
system. But I am not sure where to go from here.


Yuri




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