Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 3 Aug 2002 17:04:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 3 Aug 2002 17:04:27 -0400 Received: from postfix1-2.free.fr ([213.228.0.130]:47805 "EHLO postfix1-2.free.fr") by vger.kernel.org with ESMTP id ; Sat, 3 Aug 2002 17:04:24 -0400 From: Marc Lefranc To: linux-kernel@vger.kernel.org Subject: Problem with AHA152X driver in 2.4.19 Date: 03 Aug 2002 19:02:50 +0200 Message-ID: User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.2 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: 2749 Lines: 53 Hi all, I just built 2.4.19 and checked that the problem that had been introduced in the aha152x driver between 2.4.19-pre8 and pre10 (bad initialization due to lost interrupt) had been corrected. However, I have experienced another problem related to blocking factor. Using tar without specifying a blocking factor works fine but as soon as I specify one, tar exits with a segmentation violation immediately after trying to write to the tape. There is a also a message about a NULL pointer dereference written to /var/log/messages (see below). The exact command I used is (taken from a shell script): tar --create --blocking-factor 96 --file=/dev/st0 --listed-incremental=$JOURNAL --verbose --preserve --one-file-system --atime-preserve $1 The very same script worked flawlessly with 2.4.19-pre8 and before. If I remove the blocking-factor option, everything is back to normal. Marc ---------------------------------------------------------------------- Aug 3 17:44:55 socrate kernel: Unable to handle kernel NULL pointer dereference at virtual address 0000001b Aug 3 17:44:55 socrate kernel: printing eip: Aug 3 17:44:55 socrate kernel: c68a21d9 Aug 3 17:44:55 socrate kernel: *pde = 00000000 Aug 3 17:44:55 socrate kernel: Oops: 0000 Aug 3 17:44:55 socrate kernel: CPU: 0 Aug 3 17:44:55 socrate kernel: EIP: 0010:[] Not tainted Aug 3 17:44:55 socrate kernel: EFLAGS: 00010002 Aug 3 17:44:55 socrate kernel: eax: 00000000 ebx: c2575000 ecx: c26e9e30 edx: c1d9a240 Aug 3 17:44:55 socrate kernel: esi: c251c000 edi: 0000000c ebp: c251c000 esp: c2691e4c Aug 3 17:44:55 socrate kernel: ds: 0018 es: 0018 ss: 0018 Aug 3 17:44:55 socrate kernel: Process tar (pid: 1141, stackpage=c2691000) Aug 3 17:44:55 socrate kernel: Stack: 00000297 c116fdb4 c2575000 c68a22e3 c2575 000 00000000 00000000 00000000 Aug 3 17:44:55 socrate kernel: c687fab0 c687f517 c2575000 c687fab0 00000 000 c2575000 c116fdb4 c25750b8 Aug 3 17:44:55 socrate kernel: c116fdb4 c688662f c2575000 c2575000 00000 000 c251c000 c5995c00 c116fd60 Aug 3 17:44:55 socrate kernel: Call Trace: [] [] [] [] [] Aug 3 17:44:55 socrate kernel: [] [] [] [] [] [] Aug 3 17:44:55 socrate kernel: [] [] Aug 3 17:44:55 socrate kernel: Aug 3 17:44:55 socrate kernel: Code: 0f b6 50 1b 8b 14 95 dc 24 27 c0 2b 82 a0 00 00 00 69 c0 a3 - 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/