From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753998Ab3KZEi4 (ORCPT ); Mon, 25 Nov 2013 23:38:56 -0500 Received: from mail-we0-f182.google.com ([74.125.82.182]:35042 "EHLO mail-we0-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753855Ab3KZEiy (ORCPT ); Mon, 25 Nov 2013 23:38:54 -0500 MIME-Version: 1.0 Date: Tue, 26 Nov 2013 12:38:53 +0800 Message-ID: Subject: [BUG] 3.13-rc1 kernel crash when enable all tracepoints From: Jovi Zhangwei To: Steven Rostedt , Masami Hiramatsu , Oleg Nesterov Cc: LKML Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, I'm not sure this issue already be fixed or not, it can be reproduced permanently. (I didn't use git-bisect yet, you guys might can understand it quickly) #echo 1 > /sys/kernel/debug/tracing/events/enable [ 160.472176] BUG: unable to handle kernel NULL pointer dereference at (null) [ 160.472176] IP: [] strlen+0x0/0x30 [ 160.472176] PGD 7b67a067 PUD 788c6067 PMD 0 [ 160.472176] Oops: 0000 [#12] SMP [ 160.472176] Modules linked in: ebtable_nat ebtables joydev e1000 [ 160.472176] CPU: 0 PID: 741 Comm: bash Tainted: G D 3.13.0-rc1+ #16 [ 160.472176] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 160.472176] task: ffff88007891e000 ti: ffff880074d04000 task.ti: ffff880074d04000 [ 160.472176] RIP: 0010:[] [] strlen+0x0/0x30 [ 160.472176] RSP: 0018:ffff88007fc03e40 EFLAGS: 00010006 [ 160.472176] RAX: 0000000000000002 RBX: ffff88007bb19d80 RCX: 0000000000000002 [ 160.472176] RDX: ffffffff8107a5ac RSI: ffffffff826eac88 RDI: 0000000000000000 [ 160.472176] RBP: ffff88007fc03e88 R08: 0000000000000002 R09: 0000000000000000 [ 160.472176] R10: ffff88007891e000 R11: 0000000000000000 R12: ffffffff826eac88 [ 160.472176] R13: 0000000000010000 R14: 0000000000000046 R15: ffffffff81c47880 [ 160.472176] FS: 00007fef34515740(0000) GS:ffff88007fc00000(0000) knlGS:0000000000000000 [ 160.472176] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 160.472176] CR2: 0000000000000000 CR3: 000000007a492000 CR4: 00000000000006f0 [ 160.472176] Stack: [ 160.472176] ffffffff810999e0 0000000000000002 0000000000000046 ffff88007fc03ec0 [ 160.472176] ffff8800788031a0 ffffffff826eac88 ffffffff8107a5ac 0000000000000046 [ 160.472176] 0000000000000001 ffff88007fc03ec0 ffffffff8109e840 0000000000000082 [ 160.472176] Call Trace: [ 160.472176] [ 160.472176] [] ? ftrace_raw_event_lock+0x50/0xe0 [ 160.472176] [] ? hrtimer_interrupt+0x7c/0x240 [ 160.472176] [] lock_release+0xe0/0x1f0 [ 160.472176] [] ktime_get_update_offsets+0x62/0x150 [ 160.472176] [] ? hrtimer_interrupt+0x7c/0x240 [ 160.472176] [] hrtimer_interrupt+0x7c/0x240 [ 160.472176] [] ? trace_event_buffer_lock_reserve+0x26/0x30 [ 160.472176] [] local_apic_timer_interrupt+0x37/0x60 [ 160.472176] [] smp_trace_apic_timer_interrupt+0x4a/0xc9 [ 160.472176] [] trace_apic_timer_interrupt+0x6f/0x80 [ 160.472176] [ 160.472176] [] ? smp_call_function_many+0x25a/0x2c0 [ 160.472176] [] ? setup_data_read+0xa0/0xa0 [ 160.472176] [] ? lock_release+0x46/0x1f0 [ 160.472176] [] ? setup_data_read+0xa0/0xa0 [ 160.472176] [] ? lock_release+0x47/0x1f0 [ 160.472176] [] on_each_cpu+0x2d/0x60 [ 160.472176] [] ? lock_release+0x46/0x1f0 [ 160.472176] [] text_poke_bp+0xa8/0xc0 [ 160.472176] [] ? lock_release+0x46/0x1f0 [ 160.472176] [] arch_jump_label_transform+0x8e/0x100 [ 160.472176] [] __jump_label_update+0x5f/0x80 [ 160.472176] [] jump_label_update+0x9d/0xb0 [ 160.472176] [] static_key_slow_inc+0xad/0xb0 [ 160.472176] [] tracepoint_update_probe_range+0x139/0x160 [ 160.472176] [] tracepoint_probe_register+0x54/0xa0 [ 160.472176] [] ftrace_event_reg+0x69/0x90 [ 160.472176] [] __ftrace_event_enable_disable+0x5f/0x1b0 [ 160.472176] [] __ftrace_set_clr_event_nolock+0xc7/0xf0 [ 160.472176] [] system_enable_write+0x9b/0xe0 [ 160.472176] [] vfs_write+0xb4/0x1f0 [ 160.472176] [] SyS_write+0x49/0xa0 [ 160.472176] [] ? __audit_syscall_entry+0x9c/0xf0 [ 160.472176] [] system_call_fastpath+0x16/0x1b [ 160.472176] Code: 89 f8 48 89 e5 f6 82 e0 c7 85 81 20 74 15 0f 1f 44 00 00 48 83 c0 01 0f b6 10 f6 82 e0 c7 85 81 20 75 f0 5d c3 66 0f 1f 44 00 00 <80> 3f 00 55 48 89 e5 74 15 48 89 f8 0f 1f 40 00 48 83 c0 01 80 [ 160.472176] RIP [] strlen+0x0/0x30 [ 160.472176] RSP [ 160.472176] CR2: 0000000000000000 [ 160.472176] ---[ end trace cadf03f6f81c6eb9 ]--- [ 160.472277] Shutting down cpus with NMI