Date: Tue, 12 Feb 2013 21:02:29 +0200 From: Andriy Gapon <avg@FreeBSD.org> To: David Demelier <demelier.david@gmail.com> Cc: freebsd-stable@FreeBSD.org Subject: Re: Panic at shutdown Message-ID: <511A91C5.7010502@FreeBSD.org> In-Reply-To: <2872289.1yXr0e1VeO@melon.malikania.fr> References: <51127767.1030007@gmail.com> <CAO%2BPfDeGfN1MjMAv63WzuRfm1VK3ZoHd7N=tEFu-NS1KJYyuoQ@mail.gmail.com> <5119F6C6.8010802@FreeBSD.org> <2872289.1yXr0e1VeO@melon.malikania.fr>
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on 12/02/2013 20:44 David Demelier said the following: > Le mardi 12 février 2013 10:01:10 Andriy Gapon a écrit : >> on 12/02/2013 09:57 David Demelier said the following: >>> Yes I have added debugging option in my kernel. I have makeoptions >>> DEBUG=-g in my config. Do I need more ? >> >> .symbols? > > I don't understand what you are saying, I have /boot/kernel/kernel.symbols. > Please tell me what I'm doing wrong. I've just read and done the steps written > there : > > http://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug- > gdb.html > > So I've run > > # cd /usr/obj/usr/src/sys/Melon > # kgdb kernel.debug /var/crash/vmcore.0 > > and that's the only trace I get using bt full : > > 229 #define IS_BSP() (PCPU_GET(cpuid) == 0) > (kgdb) bt full > #0 doadump (textdump=<value optimized out>) at pcpu.h:229 > No locals. > #1 0x0000000000000000 in ?? () > No symbol table info available. I don't know what you are doing wrong, but the above message ("No symbol table info available") is wrong. Perhaps your world (kgdb) and kernel are out of sync, maybe something else... -- Andriy Gapon
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