From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752369AbXBDOzN (ORCPT ); Sun, 4 Feb 2007 09:55:13 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752371AbXBDOzN (ORCPT ); Sun, 4 Feb 2007 09:55:13 -0500 Received: from thccv19.oz.nthu.edu.tw ([140.114.63.219]:34893 "EHLO thccv19.oz.nthu.edu.tw" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752370AbXBDOzM (ORCPT ); Sun, 4 Feb 2007 09:55:12 -0500 From: "Yu-Chen Wu" To: Subject: Kernel BUG at mm/slab.c:595 Date: Sun, 4 Feb 2007 22:55:19 +0800 Message-ID: <003801c7486c$7d862680$0100a8c0@sslabmayasky> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 thread-index: AcdIbHzAWkIQLTmhROGUB2D4rnDghQ== Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi all, I am developing my module, but meet a bug. Is the bug created by me?? Kernel:2.6.18 on SUSE10.1 + Intel DualCore Feb 5 00:57:39 VM-SUSE kernel: ----------- [cut here ] --------- [please bite here ] --------- Feb 5 00:57:39 VM-SUSE kernel: Kernel BUG at mm/slab.c:595 Feb 5 00:57:39 VM-SUSE kernel: invalid opcode: 0000 [1] SMP Feb 5 00:57:39 VM-SUSE kernel: CPU 1 Feb 5 00:57:39 VM-SUSE kernel: Modules linked in: raid0 mymodule acpi_cpufreq edd freq_table ipv6 button battery ac loop d Feb 5 00:57:39 VM-SUSE kernel: Pid: 3239, comm: read_helper_1 Tainted: GF 2.6.18-yuchen #1 Feb 5 00:57:39 VM-SUSE kernel: RIP: 0010:[] [] kfree+0x5e/0x1bd Feb 5 00:57:39 VM-SUSE kernel: RSP: 0018:ffff810036d19dd0 EFLAGS: 00010046 Feb 5 00:57:39 VM-SUSE kernel: RAX: 0000000000000000 RBX: 0000000000004000 RCX: 000000000000003f Feb 5 00:57:39 VM-SUSE kernel: RDX: ffff810000771840 RSI: 0000000000040000 RDI: 00000000000082b8 Feb 5 00:57:39 VM-SUSE kernel: RBP: ffffffff882b8d78 R08: 00000000fffffffc R09: ffff810036d19ba0 Feb 5 00:57:39 VM-SUSE kernel: R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000009 Feb 5 00:57:39 VM-SUSE kernel: R13: ffff8100364f74c8 R14: 0000000000000286 R15: 0000000000023000 Feb 5 00:57:39 VM-SUSE kernel: FS: 0000000000000000(0000) GS:ffff81003fea1ac0(0000) knlGS:0000000000000000 Feb 5 00:57:39 VM-SUSE kernel: CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b Feb 5 00:57:39 VM-SUSE kernel: CR2: 00002afccd5f0795 CR3: 000000003ceaf000 CR4: 00000000000006e0 Feb 5 00:57:39 VM-SUSE kernel: Process read_helper_1 (pid: 3239, threadinfo ffff810036d18000, task ffff8100017757a0) Feb 5 00:57:39 VM-SUSE kernel: Stack: 0000000000000246 ffff81003aca7540 0000000000004000 ffff8100364f7400 Feb 5 00:57:39 VM-SUSE kernel: 0000000000000009 ffff8100364f74c8 ffff8100364f7528 ffffffff882b5b0b Feb 5 00:57:39 VM-SUSE kernel: 0000000000000001 0000002700000020 0000000000626473 ffff8100017757a0 Feb 5 00:57:39 VM-SUSE kernel: Call Trace: Feb 5 00:57:39 VM-SUSE kernel: [] :mymodule:helper_get_info+0x517/0x755 Feb 5 00:57:39 VM-SUSE kernel: [] keventd_create_kthread+0x0/0x61 Feb 5 00:57:39 VM-SUSE kernel: [] :mymodule:thread_func_th1+0x107/0x121 Feb 5 00:57:39 VM-SUSE kernel: [] autoremove_wake_function+0x0/0x2e Feb 5 00:57:39 VM-SUSE kernel: [] :mymodule:thread_func_th1+0x0/0x121 Feb 5 00:57:39 VM-SUSE kernel: [] kthread+0xec/0x121 Feb 5 00:57:39 VM-SUSE kernel: [] child_rip+0xa/0x12 Feb 5 00:57:39 VM-SUSE kernel: [] keventd_create_kthread+0x0/0x61 Feb 5 00:57:39 VM-SUSE kernel: [] kthread+0x0/0x121 Feb 5 00:57:39 VM-SUSE kernel: [] child_rip+0x0/0x12 Feb 5 00:57:39 VM-SUSE kernel: Feb 5 00:57:39 VM-SUSE kernel: Feb 5 00:57:39 VM-SUSE kernel: Code: 0f 0b 68 fd 46 40 80 c2 53 02 4c 8b 6a 28 65 8b 04 25 2c 00 Feb 5 00:57:39 VM-SUSE kernel: RIP [] kfree+0x5e/0x1bd Feb 5 00:57:39 VM-SUSE kernel: RSP Feb 5 00:57:39 VM-SUSE kernel: <3>BUG: sleeping function called from invalid context at kernel/rwsem.c:20 Feb 5 00:57:39 VM-SUSE kernel: in_atomic():0, irqs_disabled():1 Feb 5 00:57:39 VM-SUSE kernel: Feb 5 00:57:39 VM-SUSE kernel: Call Trace: Feb 5 00:57:39 VM-SUSE kernel: [] down_read+0x15/0x24 Feb 5 00:57:39 VM-SUSE kernel: [] blocking_notifier_call_chain+0x13/0x36 Feb 5 00:57:39 VM-SUSE kernel: [] do_exit+0x20/0x8f4 Feb 5 00:57:39 VM-SUSE kernel: [] do_unblank_screen+0x2c/0x139 Feb 5 00:57:39 VM-SUSE kernel: [] kernel_math_error+0x0/0x90 Feb 5 00:57:39 VM-SUSE kernel: [] do_invalid_op+0xad/0xb7 Feb 5 00:57:39 VM-SUSE kernel: [] kfree+0x5e/0x1bd Feb 5 00:57:39 VM-SUSE kernel: [] vsnprintf+0x314/0x595 Feb 5 00:57:39 VM-SUSE kernel: [] error_exit+0x0/0x84 Feb 5 00:57:39 VM-SUSE kernel: [] kfree+0x5e/0x1bd Feb 5 00:57:39 VM-SUSE kernel: [] :mymodule:helper_get_info+0x517/0x755 Feb 5 00:57:39 VM-SUSE kernel: [] keventd_create_kthread+0x0/0x61 Feb 5 00:57:39 VM-SUSE kernel: [] :mymodule:thread_func_th1+0x107/0x121 Feb 5 00:57:39 VM-SUSE kernel: [] autoremove_wake_function+0x0/0x2e Feb 5 00:57:39 VM-SUSE kernel: [] :mymodule:thread_func_th1+0x0/0x121 Feb 5 00:57:39 VM-SUSE kernel: [] kthread+0xec/0x121 Feb 5 00:57:39 VM-SUSE kernel: [] child_rip+0xa/0x12 Feb 5 00:57:39 VM-SUSE kernel: [] keventd_create_kthread+0x0/0x61 Feb 5 00:57:39 VM-SUSE kernel: [] kthread+0x0/0x121 Feb 5 00:57:39 VM-SUSE kernel: [] child_rip+0x0/0x12 Feb 5 00:57:39 VM-SUSE kernel: