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Date:      Wed, 20 Nov 2013 16:08:35 -0800
From:      Adrian Chadd <adrian@freebsd.org>
To:        Juris Kaminskis <juris.kaminskis@gmail.com>
Cc:        FreeBSD Questions <freebsd-questions@freebsd.org>
Subject:   Re: Restart of wireless service creates crash in system
Message-ID:  <CAJ-Vmo=MFhtuVp%2BVJ%2BTpxCeVzLp19gwZaSEidPTEu=JFW-7Mng@mail.gmail.com>
In-Reply-To: <CAKJAkzvHfkTDXPwCdPcKxaNN6L%2BuAy_UFFki=TUDiOxLO3fBNQ@mail.gmail.com>
References:  <CAKJAkzum_tRTg5eHCXRxEBrcuMGsv2TaS5tJToxbr4Qr20heuQ@mail.gmail.com> <CAKJAkzvn6tS7rNbAn6AMf8MikioaMSJfYJzYQjvv%2BFEeTYHW-Q@mail.gmail.com> <CAJ-Vmonz5uW3UvbFYEUHpnXYGtE1ZWifqRqHaXk9gftZf-eJTg@mail.gmail.com> <CAKJAkzvHfkTDXPwCdPcKxaNN6L%2BuAy_UFFki=TUDiOxLO3fBNQ@mail.gmail.com>

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Try kgdb /boot/kernel/kernel.symbols ?



-adrian


On 18 November 2013 07:34, Juris Kaminskis <juris.kaminskis@gmail.com> wrote:
>
> 2013/11/18 Adrian Chadd <adrian@freebsd.org>
>>
>> Hi!
>>
>> Which version of FreeBSD?
>
> uname -a
> FreeBSD  9.1-RELEASE FreeBSD 9.1-RELEASE #1 r255394: Mon Sep 16 23:40:54
> EEST 2013     root@:/usr/obj/usr/src/sys/THINKPAD_T43  i386
>
>> It's possibly a bug in iwi, I'm not sure.
>>
>> Please do this:
>>
>> kgdb /boot/kernel/kernel
>>
>> list *0xc0751582
>
>
> When I do this I get following:
> .....
> There is absolutely no warranty for GDB.  Type "show warranty" for details.
> This GDB was configured as "i386-marcel-freebsd"...(no debugging symbols
> found)...
> (kgdb) list *0xc0751582
> No symbol table is loaded.  Use the "file" command
>
> Looks like I need to rebuild kernel for debugging support can you help me
> what module needs to be loaded in the Kernel configuration when recompiling
> it? Or can I dynamically via kldload make it happen?
>
> thanks
> Juris
>



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