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Date:      Wed, 17 Nov 2010 20:15:35 +0000 (UTC)
From:      Marcin Wisnicki <mwisnicki+freebsd@gmail.com>
To:        freebsd-current@freebsd.org
Subject:   Re: www/chromium crashing whole system
Message-ID:  <ic1d57$ol9$1@dough.gmane.org>
References:  <20101113112447.GF2392@deviant.kiev.zoral.com.ua> <20101113115900.GA14975@freebsd.org> <20101113122853.GG2392@deviant.kiev.zoral.com.ua> <20101113123846.GA21390@freebsd.org> <20101113124146.GH2392@deviant.kiev.zoral.com.ua> <20101113124758.GA23469@freebsd.org> <alpine.BSF.2.00.1011132206380.12353@fledge.watson.org> <4CDF0E7F.3060406@freebsd.org> <ibsl25$23m$1@dough.gmane.org> <20101116224156.GA52556@freebsd.org> <20101117033520.GA95666@freebsd.org>

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On Wed, 17 Nov 2010 03:35:20 +0000, Alexander Best wrote:

> On Tue Nov 16 10, Alexander Best wrote:
>> 
>> WOW! this is the first time i hear of such a concept. it seems great
>> for people like me who are desktop users without any serial/firewire
>> consoles or any additional debugging hardware.
>> 
>> is there a way of trying this out somehow? personally i wouldn't need
>> the memory dump to work in partitions. i'd simply blug in a blank usb
>> stick and have the memory dump dd'ed onto it. i think adding partition
>> awareness is not really needed.
> 
> ok i read some more details and i think i figured out how to dump the
> memory to a usb stick. question still remains however: will i be able to
> use that memory snapshot in kgdb or gdb?
> 

Probably not. I thought about it a bit more and realized that you will 
miss state of cpu registers which is rather important.

How does debugging over firewire work if it only has access to host RAM ?




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