Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 20 Oct 2002 14:40:06 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 20 Oct 2002 14:40:06 -0400 Received: from ns0.cobite.com ([208.222.80.10]:49423 "EHLO ns0.cobite.com") by vger.kernel.org with ESMTP id ; Sun, 20 Oct 2002 14:40:05 -0400 Date: Sun, 20 Oct 2002 14:46:05 -0400 (EDT) From: David Mansfield X-X-Sender: david@admin To: Keith Owens , Subject: [OOPS] in kdb v2.3 on top of 2.5.44 Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3197 Lines: 94 Hi Keith, list, I tried patching the 2.5.44 vanilla kernel with the 2.3 you released for 2.5.43. The patching had only a few rejects, which were completely trivial, but perhaps this mis-match of kernel to patch version caused the oops, but here it is (starting from me successfully executing a few commands inside the debugger): [ snip kernel boot and beginning of kdb session ] [1]kdb> bt EBP EIP Function (args) 0xc0106ee0 0xc0106f0a default_idle+0x2a (0x0, 0x0, 0x0) kernel .text 0xc0100000 0xc0106ee0 0xc0106f20 0xc0106fb2 cpu_idle+0x52 kernel .text 0xc0100000 0xc0106f60 0xc0106fd0 0xc0452dfd start_secondary+0x6d kernel .init.text 0xc044c000 0xc0452d90 0xc0452e00 [1]kdb> go [ time passes here while I use the system a bit - then I do ctrl-a again ] Entering kdb (current=0xc0420e20, pid 0) on processor 0 due to Keyboard Entry Unable to handle kernel NULL pointer dereference at virtual address 00000000 printing eip: c02b77c4 *pde = 00000000 Oops: 0002 CPU: 0 EIP: 0060:[] Not tainted EFLAGS: 00010006 EIP is at kdba_setjmp+0x4/0x50 eax: 00000000 ebx: c044a000 ecx: 00000001 edx: 00000000 esi: 00000004 edi: c034409f ebp: c044a000 esp: c044be1c ds: 0068 es: 0068 ss: 0068 Process swapper (pid: 0, threadinfo=c044a000 task=c0420e20) Stack: c02084ec c04d4c40 00000000 00000000 00000000 00000000 00000000 00000002 ae50ded0 1750ded0 00000000 00000000 c036952e ffffffff c0369532 00000000 c02b7229 c036952e c036952e c044a000 c044a000 00000008 00000000 c020872c Call Trace: [] kdb_local+0x2cc/0x3e0 [] kdba_getregcontents+0x119/0x280 [] kdb_main_loop+0xbc/0x220 [] kdba_main_loop+0x54/0x60 [] kdb+0x5b9/0x7e0 [] receive_chars+0x9c/0x290 [] serial8250_interrupt+0x88/0x120 [] handle_IRQ_event+0x3a/0x60 [] do_IRQ+0xc6/0x160 [] default_idle+0x0/0x40 [] default_idle+0x0/0x40 [] common_interrupt+0x18/0x20 [] default_idle+0x0/0x40 [] default_idle+0x0/0x40 [] default_idle+0x2a/0x40 [] cpu_idle+0x52/0x70 [] stext+0x0/0x60 [] stext+0x51/0x60 Code: 89 58 00 89 70 04 89 78 08 8b 0c 24 89 48 0c 8d 4c 24 08 89 kdb: Debugger re-entered on cpu 0, new reason = 5 Not executing a kdb command No longjmp available for recovery Cannot recover, allowing event to proceed <0>Kernel panic: Aiee, killing interrupt handler! In interrupt handler - not syncing My system is a dual PII-450 with 1GB ram (highmem 4g) running all SCSI with an adaptec aic7xxx. System is redhat 7.3 based with official updates. David -- /==============================\ | David Mansfield | | lkml@dm.cobite.com | \==============================/ - 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/