Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 12 Jul 2002 14:34:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 12 Jul 2002 14:34:51 -0400 Received: from ns.suse.de ([213.95.15.193]:45064 "EHLO Cantor.suse.de") by vger.kernel.org with ESMTP id ; Fri, 12 Jul 2002 14:34:48 -0400 Date: Fri, 12 Jul 2002 20:37:37 +0200 From: Dave Jones To: Roman Zippel Cc: Thunder from the hill , Linux Kernel Mailing List Subject: Re: [CHECKER] 56 potential lock/unlock bugs in 2.5.8 Message-ID: <20020712203737.C18503@suse.de> Mail-Followup-To: Dave Jones , Roman Zippel , Thunder from the hill , Linux Kernel Mailing List References: <20020712200507.G16956@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: ; from zippel@linux-m68k.org on Fri, Jul 12, 2002 at 08:32:20PM +0200 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2998 Lines: 75 On Fri, Jul 12, 2002 at 08:32:20PM +0200, Roman Zippel wrote: > Which last few kernels? Was it a ffs or an ofs image? For ofs images you > have to call fsx with "-W -R" to disable mmap operations. OFS afaik. Has this always been the case ? I'm sure I ran fsx without disabling mmap before on this image, and it used to pass. Second bad news, with the -W -R options, it goes splat in an even more dramatic way. Dave. Unable to handle kernel NULL pointer dereference at virtual address 00000008 c01f91a7 *pde = 00000000 Oops: 0000 CPU: 0 EIP: 0010:[] Not tainted Using defaults from ksymoops -t elf32-i386 -a i386 EFLAGS: 00010296 eax: c01f9198 ebx: 000006a0 ecx: cff6bea8 edx: 00000000 esi: c133acc0 edi: cd352524 ebp: cefb6c00 esp: cd0efe9c ds: 0018 es: 0018 ss: 0018 Process fsx (pid: 908, stackpage=cd0ef000) Stack: 000006a0 c133acc0 cd352524 cefb6c00 cd352524 c01f9a26 00000000 c133acc0 000006a0 000006a0 000186a0 00000000 cd352474 00000000 00000000 cd352474 00000000 000000cc c0123f01 00000002 c0123f60 cd352474 00000048 cd0eff74 Call Trace: [] [] [] [] [] [] [] [] [] Code: 8b 42 08 31 d2 8b 48 08 8b 74 24 1c 8b 46 18 a9 08 00 00 00 >>EIP; c01f91a7 <===== >>eax; c01f9198 >>ebx; 000006a0 Before first symbol >>ecx; cff6bea8 >>esi; c133acc0 >>edi; cd352524 >>ebp; cefb6c00 >>esp; cd0efe9c Trace; c01f9a26 Trace; c0123f01 Trace; c0123f60 Trace; c0144eab Trace; c01f7bdf Trace; c0144fe0 Trace; c0131669 Trace; c0131907 Trace; c0106b73 Code; c01f91a7 00000000 <_EIP>: Code; c01f91a7 <===== 0: 8b 42 08 mov 0x8(%edx),%eax <===== Code; c01f91aa 3: 31 d2 xor %edx,%edx Code; c01f91ac 5: 8b 48 08 mov 0x8(%eax),%ecx Code; c01f91af 8: 8b 74 24 1c mov 0x1c(%esp,1),%esi Code; c01f91b3 c: 8b 46 18 mov 0x18(%esi),%eax Code; c01f91b6 f: a9 08 00 00 00 test $0x8,%eax -- | Dave Jones. http://www.codemonkey.org.uk | SuSE Labs - 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/