From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jonathan Walsh Subject: 2.6.20-rc1-rt1 Panic on reboot after fresh kernel compile Date: Thu, 21 Dec 2006 10:06:28 -0500 Message-ID: <458AA2F4.4080601@atl.lmco.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: "Gautam H. Thaker" Return-path: Received: from mail.atl.external.lmco.com ([192.35.37.50]:34794 "EHLO enterprise.atl.lmco.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1422869AbWLUPbD (ORCPT ); Thu, 21 Dec 2006 10:31:03 -0500 To: linux-rt-users@vger.kernel.org Sender: linux-rt-users-owner@vger.kernel.org List-Id: linux-rt-users.vger.kernel.org I also saw this yesterday in 2.6.19.1-rt15, retried today with the new=20 patch and saw the same result. This error only occurs with the RT=20 patches applied, 2.6.20-rc1 (and 2.6.19.1) boots fine with the same=20 config. After a clean compilation and install run, I reboot and receiv= e=20 the following console error message before hanging: =2E.. isapnp: Scanning for PnP cards... isapnp: No Plug & Play device found Real Time Clock Driver v1.12ac Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enable= d =FFserial8250: ttyS0 at I/O 0x3f8 (irq =3D 4) is a NS16550A [a few hundred junk characters] Creating root deKernel panic - not syncing: Attempted to kill init! [] panic+0x50/0x100 [] do_exit+0x6d9/0xa50 [] remove_vma+0x39/0x50 [] do_munmap+0x19a/0x1f0 [] do_group_exit+0x34/0xb0 [] sys_munmap+0x48/0x60 [] syscall_call+0x7/0xb [] packet_seq_start+0x2b/0x80 This is of course snipped to the last few relevant lines. This is a=20 reproducible message so I can rerun and give the entire console log if=20 it would be helpful, or if any other information at all would be useful= =2E Hopefully this is in some way helpful, and thanks for any advice, -Jonathan Walsh Associate Member Engineering Staff Lockheed Martin Advanced Technology Laboratories