From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.11] helo=sc8-sf-mx1.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.30) id 1BibJl-0004fp-Ot for user-mode-linux-devel@lists.sourceforge.net; Thu, 08 Jul 2004 09:00:13 -0700 Received: from smtp004.mail.ukl.yahoo.com ([217.12.11.35]) by sc8-sf-mx1.sourceforge.net with smtp (Exim 4.34) id 1BibJl-000486-6W for user-mode-linux-devel@lists.sourceforge.net; Thu, 08 Jul 2004 09:00:13 -0700 From: BlaisorBlade Subject: Re: [uml-devel] Unable to handle kernel paging request ... References: <200407071945.30015.blaisorblade_spam@yahoo.it> <200407071929.46294.blaisorblade_spam@yahoo.it> <20040708033126.GA10586@bakunin.copyleft.de> In-Reply-To: <20040708033126.GA10586@bakunin.copyleft.de> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Disposition: inline Message-Id: <200407081800.39890.blaisorblade_spam@yahoo.it> Sender: user-mode-linux-devel-admin@lists.sourceforge.net Errors-To: user-mode-linux-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: The user-mode Linux development list List-Post: List-Help: List-Subscribe: , List-Archive: Date: Thu, 8 Jul 2004 18:00:39 +0200 Content-Transfer-Encoding: quoted-printable To: Michael Koehne , user-mode-linux-devel@lists.sourceforge.net Alle 05:31, gioved=EC 8 luglio 2004, Michael Koehne ha scritto: > Moin BlaisorBlade, > I'll stick to that combo for some more days (because of laziness ;) > and hope to be more patient writing down the kernel panic next time. If you can, try also using, instead, a vanilla kernel. I'm highly suspiciou= s=20 your crash is not SKAS-related. If you get that panic with a kernel without any SKAS patch, then you should= =20 report it onto the LKML (Linux Kernel Mailing List), hopefully with a stack= =20 trace (yes, it's painful to write it down... - at least try providing the=20 names of the funcs involved - for instance, in this panic output (I've=20 received it a few minutes ago) There are only some interesting part (I mark= ed=20 them with >): > Jun 27 12:11:25 nimbus kernel: Unable to handle kernel paging request at virtual address 00100104 Jun 27 12:11:25 nimbus kernel: printing eip: Jun 27 12:11:25 nimbus kernel: c011b31f Jun 27 12:11:25 nimbus kernel: *pde =3D 00000000 Jun 27 12:11:25 nimbus kernel: Oops: 0002 [#1] Jun 27 12:11:25 nimbus kernel: SMP=20 Jun 27 12:11:25 nimbus kernel: CPU: 0 Jun 27 12:11:25 nimbus kernel: EIP: 0060:[] Not tainted Jun 27 12:11:25 nimbus kernel: EFLAGS: 00010202 (2.6.5040422)=20 > Jun 27 12:11:25 nimbus kernel: EIP is at mmput+0x23/0x68 Jun 27 12:11:25 nimbus kernel: eax: 00100100 ebx: ee2d3e00 ecx: ee2d3e34 edx: 00200200 Jun 27 12:11:25 nimbus kernel: esi: f5804c60 edi: 00000037 ebp: 00000000 esp: f085df80 Jun 27 12:11:25 nimbus kernel: ds: 007b es: 007b ss: 0068 > Jun 27 12:11:25 nimbus kernel: Process linux-2.6.5-a1- (pid: 8864, threadinfo=3Df085c000 task=3Dc1b5f290) Jun 27 12:11:25 nimbus kernel: Stack: ee2d3e00 c010d0d4 ee2d3e00 00000037 00000044 00000037 f085c000 f085c000=20 Jun 27 12:11:25 nimbus kernel: f5804c60 f636f080 a696b5e8 0000001c c0149aa4 00000044 bfc00000 00000001=20 Jun 27 12:11:25 nimbus kernel: c0108573 00000037 000022a2 00000000 00000044 00000037 a696b65c 0000001a=20 > And finally, these lines are VERY important (I don't care the =20 part, just the "sys_ptrace"-"sys_write"-"syscall_call" part. Jun 27 12:11:25 nimbus kernel: Call Trace: Jun 27 12:11:25 nimbus kernel: [] sys_ptrace+0x754/0x7d0 Jun 27 12:11:25 nimbus kernel: [] sys_write+0x44/0x4c Jun 27 12:11:25 nimbus kernel: [] syscall_call+0x7/0xb Jun 27 12:11:25 nimbus kernel:=20 Jun 27 12:11:25 nimbus kernel: Code: 89 50 04 89 02 c7 43 34 00 01 10 00 c7 41 04 00 02 20 00 ff So you could write down, for that panic: ---- Unable to handle kernel paging request at virtual address??? EIP is at mmput Call Trace: sys_ptrace sys_write syscall_call ---- The other part are harder to decode and much less useful, in this situation= =20 (they can be used, but it's difficult). --=20 Paolo Giarrusso, aka Blaisorblade Linux registered user n. 292729 ------------------------------------------------------- This SF.Net email sponsored by Black Hat Briefings & Training. Attend Black Hat Briefings & Training, Las Vegas July 24-29 -=20 digital self defense, top technical experts, no vendor pitches,=20 unmatched networking opportunities. Visit www.blackhat.com _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel