Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265592AbTGCJRO (ORCPT ); Thu, 3 Jul 2003 05:17:14 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265607AbTGCJRO (ORCPT ); Thu, 3 Jul 2003 05:17:14 -0400 Received: from sccrmhc11.comcast.net ([204.127.202.55]:12990 "EHLO sccrmhc11.comcast.net") by vger.kernel.org with ESMTP id S265592AbTGCJRM (ORCPT ); Thu, 3 Jul 2003 05:17:12 -0400 From: Ivan Gyurdiev Reply-To: ivg2@cornell.edu Organization: ( ) To: LKML Subject: 2.5.74 does not boot with TCQ: Unable to handle NULL pointer dereference Date: Thu, 3 Jul 2003 03:38:54 -0400 User-Agent: KMail/1.5.2 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200307030338.54603.ivg2@cornell.edu> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1411 Lines: 51 2.5.72 + bk : kernel boots fine with TCQ, TASKFILE, and TASKFILE_IO enabled It froze a bunch of times, but at least it booted. 2.5.74: kernel refuses to boot (kernel panic). Disabling TASKFILE_IO does not help Disabling TASKFILE does not help Disabling TCQ allows the kernel to boot. Here's the oops data (copied by hand)... Please CC, I'm not subscribed. Unable to handle kernel NULL pointer dereference in virtual address 00000000 .... kernel is not tainted... ... EIP at 0x0 Process swapper __elv_add_request + 0x36/0x50 ide_do_drive_cmd+0xc2/0x140 ide_diag_taskfile+0xac/0xe0 ide_raw_taskfile+0x27/0x30 ide_tcq_configure+0x7c/0x110 ide_enable_queued+0x5e/0x100 __ide_dma_queued_on+0x94/0xc0 __ide_dma_on+0x53/0x60 via82cxxx_ide_dma_check+0xbf/0xe0 probe_hwif+0x24a/0x480 probe_hwif_init+0x25/0x80 ide_setup_pci_device+0x57/0x90 via_init_one+0x3c/0x50 ide_scan_pcidev+0x5c/0x70 ide_scan_pcibus+0x3e/0xe0 probe_for_hwifs+0x10/0x20 ide_init_builtin_drivers+0x5/0x10 ide_init+0x45/0x60 do_initcalls+0x2c/0xa0 init_workqueues+0xf/0x60 init+0x34/0x1d0 init+0x0/0x1d0 kernel_thread_helper+0x5/0x10 Code: Bad EIP value <0> Kernel panic: Attempted to kill init. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/