From owner-freebsd-current Tue Feb 6 11: 6:39 2001 Delivered-To: freebsd-current@freebsd.org Received: from meow.osd.bsdi.com (meow.osd.bsdi.com [204.216.28.88]) by hub.freebsd.org (Postfix) with ESMTP id 8A3C637B401 for ; Tue, 6 Feb 2001 11:06:22 -0800 (PST) Received: from laptop.baldwin.cx (john@jhb-laptop.osd.bsdi.com [204.216.28.241]) by meow.osd.bsdi.com (8.11.1/8.9.3) with ESMTP id f16J1W325319; Tue, 6 Feb 2001 11:01:32 -0800 (PST) (envelope-from jhb@FreeBSD.org) Message-ID: X-Mailer: XFMail 1.4.0 on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <20010206150643.A462@webcom.it> Date: Tue, 06 Feb 2001 11:02:33 -0800 (PST) From: John Baldwin To: Andrea Campi Subject: Re: Kernel Panic from Yesterday's CVSup Cc: Jim Bloom , "Crist J. Clark" , current@FreeBSD.org Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On 06-Feb-01 Andrea Campi wrote: >> Problem: I can't do anything at db> prompt? Backtrace is doing nothing >> except >> triggering a new register dump (another fault I assume). > > New kernel, new panic, new info: > > db> witness_list > "Giant" (0xc0279be0) locked at ../../i386/isa/ithread.c:191 > db> show registers > cs 0x8 > ds 0x10 > es 0x10 > fs 0x18 > ss 0x10 > eax 0xdeadc0de > ecx 0xc59eb4b4 > edx 0xc0279be0 Giant > ebx 0xc0a7a480 _end+0x36f8 > esp 0xc65faf68 > ebp 0xc65faf78 > esi 0xc0a7a4e0 _end+0x3758 > edi 0xc01fc998 ithd_loop > eax 0xdeadc0de > efl 0x10282 > > Besides the obvious need to fix this one problem, shouldn't we > ASSERT ih->ih_handler != NULL before calling it? It isn't null in this case, it is 0xdeadc0de. Can you try a pre-preemption kernel and see if that fixes it? > Bye, > Andrea -- John Baldwin -- http://www.FreeBSD.org/~jhb/ PGP Key: http://www.baldwin.cx/~john/pgpkey.asc "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message