From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757503Ab3GEOx5 (ORCPT ); Fri, 5 Jul 2013 10:53:57 -0400 Received: from hrndva-omtalb.mail.rr.com ([71.74.56.122]:26462 "EHLO hrndva-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757363Ab3GEOx4 (ORCPT ); Fri, 5 Jul 2013 10:53:56 -0400 X-Authority-Analysis: v=2.0 cv=Odoa/2vY c=1 sm=0 a=Sro2XwOs0tJUSHxCKfOySw==:17 a=Drc5e87SC40A:10 a=_6S4gJz81GoA:10 a=5SG0PmZfjMsA:10 a=IkcTkHD0fZMA:10 a=meVymXHHAAAA:8 a=KGjhK52YXX0A:10 a=UirpL7NoV14A:10 a=Aoph827sFY3SL0nWCQkA:9 a=QEXdDO2ut3YA:10 a=Sro2XwOs0tJUSHxCKfOySw==:117 X-Cloudmark-Score: 0 X-Authenticated-User: X-Originating-IP: 67.255.60.225 Message-ID: <1373036034.22688.155.camel@gandalf.local.home> Subject: Re: __ftrace_hash_rec_update FTRACE_WARN_ON. From: Steven Rostedt To: Dave Jones Cc: linux-kernel@vger.kernel.org Date: Fri, 05 Jul 2013 10:53:54 -0400 In-Reply-To: <20130705142629.GA325@redhat.com> References: <20130705142629.GA325@redhat.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.4.4-3 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2013-07-05 at 10:26 -0400, Dave Jones wrote: > WARNING: at kernel/trace/ftrace.c:1605 __ftrace_hash_rec_update.part.37+0x20a/0x240() > Modules linked in: sctp libcrc32c snd_seq_dummy fuse tun rfcomm bnep scsi_transport_iscsi hidp nfnetlink can_bcm irda caif_socket nfc caif netrom crc_ccitt rose x25 appletalk ipt_ULOG rds bluetooth can_raw ipx phonet can rfkill af_802154 pppoe pppox p8023 llc2 af_key ppp_generic psnap p8022 atm llc slhc ax25 af_rxrpc snd_hda_codec_realtek snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_hwdep snd_seq pcspkr snd_seq_device snd_pcm e1000e snd_page_alloc snd_timer snd ptp soundcore pps_core > CPU: 1 PID: 15820 Comm: trinity-child2 Not tainted 3.10.0+ #21 > ffffffff81a1f20b ffff8801be9dfc60 ffffffff816f2120 0000000000000000 > ffff8801be9dfc98 ffffffff8104ca81 0000000000000000 0000000000000001 > ffff8801be424000 0000000000000000 ffff88022bd25518 ffff8801be9dfca8 > Call Trace: > [] dump_stack+0x4e/0x82 > [] warn_slowpath_common+0x61/0x80 > [] warn_slowpath_null+0x1a/0x20 > [] __ftrace_hash_rec_update.part.37+0x20a/0x240 > [] ftrace_shutdown+0xb8/0x170 > [] unregister_ftrace_function+0x30/0x50 > [] perf_ftrace_event_register+0x87/0x130 > [] perf_trace_destroy+0x2c/0x50 > [] tp_perf_event_destroy+0x9/0x10 > [] free_event+0xa7/0x310 > [] perf_event_release_kernel+0x64/0x90 > [] put_event+0x120/0x1b0 > [] ? put_event+0x30/0x1b0 > [] perf_release+0x10/0x20 > [] __fput+0xf5/0x2d0 > [] ____fput+0xe/0x10 > [] task_work_run+0xac/0xe0 > [] do_exit+0x2c7/0xcd0 > [] ? ftrace_call+0x5/0x2f > [] do_group_exit+0x4c/0xc0 > [] SyS_exit_group+0x14/0x20 > [] tracesys+0xdd/0xe2 > ---[ end trace df06ab36fcd44d8b ]--- > > > 1605 if (FTRACE_WARN_ON((rec->flags & ~FTRACE_FL_MASK) == 0)) > 1606 return; > Can you find an easy reproducer for this? -- Steve