From: Peter Zijlstra <peterz@infradead.org>
To: Dave Jones <davej@redhat.com>,
Steven Rostedt <rostedt@goodmis.org>,
Linux Kernel <linux-kernel@vger.kernel.org>,
Frederic Weisbecker <fweisbec@gmail.com>,
Ingo Molnar <mingo@kernel.org>
Subject: Re: trinity finds ftrace/perf bug. Film at 11.
Date: Fri, 13 Sep 2013 16:58:10 +0200 [thread overview]
Message-ID: <20130913145810.GH21832@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <20130913142856.GB6799@redhat.com>
On Fri, Sep 13, 2013 at 10:28:56AM -0400, Dave Jones wrote:
> With that, I now get a different bug... yay?
>
> [ 212.012514] WARNING: CPU: 1 PID: 575 at kernel/events/core.c:1109 add_event_to_ctx+0x1fd/0x210()
> [ 212.016034] Modules linked in: pppoe pppox ppp_generic slhc ipt_ULOG can_raw can scsi_transport_iscsi nfnetlink af_802154 nfc rfkill irda crc_ccitt rds x25 atm appletalk ipx p8023 psnap p8022 llc ax25 xfs libcrc32c snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm snd_page_alloc snd_timer snd e1000e usb_debug soundcore ptp pps_core pcspkr
> [ 212.026484] CPU: 1 PID: 575 Comm: trinity-child11 Not tainted 3.11.0+ #75
> [ 212.031121] ffffffff81a2b40e ffff88023087dcc0 ffffffff81720482 0000000000000000
> [ 212.033279] ffff88023087dcf8 ffffffff810540bd ffff88024197e418 ffff88023976ae68
> [ 212.035471] ffff88024197e418 000000007b016bc1 ffff8802419a9530 ffff88023087dd08
> [ 212.037549] Call Trace:
> [ 212.038277] [<ffffffff81720482>] dump_stack+0x54/0x74
> [ 212.039604] [<ffffffff810540bd>] warn_slowpath_common+0x7d/0xa0
> [ 212.040946] [<ffffffff8105419a>] warn_slowpath_null+0x1a/0x20
> [ 212.042296] [<ffffffff8114383d>] add_event_to_ctx+0x1fd/0x210
> [ 212.043650] [<ffffffff81149a36>] __perf_install_in_context+0x136/0x260
> [ 212.045147] [<ffffffff811434a0>] ? rcu_read_lock_held+0x50/0x50
> [ 212.046523] [<ffffffff811434e0>] remote_function+0x40/0x50
> [ 212.047759] [<ffffffff810cc670>] smp_call_function_single+0x190/0x1e0
> [ 212.048337] [<ffffffff8107d969>] ? wait_rcu_gp+0x79/0xa0
> [ 212.048374] [<ffffffff810cc4e5>] ? smp_call_function_single+0x5/0x1e0
> [ 212.048418] [<ffffffff811423c4>] task_function_call+0x44/0x50
> [ 212.048458] [<ffffffff81149900>] ? perf_cpu_hrtimer_handler+0x1f0/0x1f0
> [ 212.048502] [<ffffffff811438d7>] perf_install_in_context+0x87/0x100
> [ 212.048546] [<ffffffff8114eebc>] SYSC_perf_event_open+0xcec/0xea0
> [ 212.048590] [<ffffffff8114f449>] SyS_perf_event_open+0x9/0x10
> [ 212.048629] [<ffffffff81733d54>] tracesys+0xdd/0xe2
Hmm.. seems somewhat connected to your earlier list corruption. I'm
going over that code as we speak, but its 5pm on a friday, need to run
soon.
Could you attach that trinity patch to an email? Maybe I can reproduce
locally tonight or tomorrow.
next prev parent reply other threads:[~2013-09-13 14:58 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-11 13:54 Dave Jones
2013-09-12 18:19 ` Steven Rostedt
2013-09-12 18:38 ` Dave Jones
2013-10-03 15:44 ` Peter Zijlstra
2013-10-03 16:57 ` Ingo Molnar
2013-09-13 10:56 ` Peter Zijlstra
2013-09-13 14:16 ` Dave Jones
2013-09-16 9:37 ` Peter Zijlstra
2013-09-16 10:25 ` Ingo Molnar
2013-09-16 10:43 ` Peter Zijlstra
2013-09-16 16:45 ` Dave Jones
2013-09-16 16:44 ` Dave Jones
2013-09-18 11:34 ` Peter Zijlstra
2013-09-18 13:22 ` Dave Jones
2013-09-13 14:32 ` Steven Rostedt
2013-09-13 14:58 ` Peter Zijlstra
2013-09-13 11:14 ` Peter Zijlstra
2013-09-13 14:28 ` Dave Jones
2013-09-13 14:58 ` Peter Zijlstra [this message]
2013-11-19 19:18 ` [tip:perf/urgent] perf: Remove fragile swevent hlist optimization tip-bot for Peter Zijlstra
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