From: Vince Weaver <vincent.weaver@maine.edu>
To: Vince Weaver <vincent.weaver@maine.edu>
Cc: Peter Zijlstra <peterz@infradead.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@kernel.org>,
linux-kernel@vger.kernel.org,
Steven Rostedt <rostedt@goodmis.org>
Subject: Re: [perf] more perf_fuzzer memory corruption
Date: Mon, 5 May 2014 13:10:55 -0400 (EDT) [thread overview]
Message-ID: <alpine.DEB.2.10.1405051309160.31072@vincent-weaver-1.umelst.maine.edu> (raw)
In-Reply-To: <alpine.DEB.2.10.1405051200010.31049@vincent-weaver-1.umelst.maine.edu>
On Mon, 5 May 2014, Vince Weaver wrote:
> (Although often things like to crash the instant my tested-by e-mails
> clear the lkml list.)
This did turn up on the core2 machine. I had been seeing this problem
earlier but was hoping it was part of the memory corruption issue:
[ 4918.921921] BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
[ 4918.925692] IP: [<ffffffff81539fa6>] mutex_lock+0x19/0x37
[ 4918.925692] PGD c5e62067 PUD cae00067 PMD 0
[ 4918.925692] Oops: 0002 [#1] SMP
[ 4918.925692] Modules linked in: cpufreq_userspace cpufreq_stats cpufreq_powersave cpufreq_conservative f71882fg mcs7830 usbnet ohci_pci evdev ohci_hcd acpi_cpufreq coretemp psmouse serio_raw pcspkr video wmi i2c_nforce2 button processor thermal_sys sg ehci_pci ehci_hcd sd_mod usbcore usb_common
[ 4918.925692] CPU: 0 PID: 9777 Comm: perf_fuzzer Not tainted 3.15.0-rc4+ #42
[ 4918.925692] Hardware name: AOpen DE7000/nMCP7ALPx-DE R1.06 Oct.19.2012, BIOS 080015 10/19/2012
[ 4918.925692] task: ffff8800c628e800 ti: ffff8800c6610000 task.ti: ffff8800c6610000
[ 4918.925692] RIP: 0010:[<ffffffff81539fa6>] [<ffffffff81539fa6>] mutex_lock+0x19/0x37
[ 4918.925692] RSP: 0018:ffff8800c6611d30 EFLAGS: 00010286
[ 4918.925692] RAX: 0000000000000000 RBX: 0000000000000010 RCX: ffff8800c9b89080
[ 4918.925692] RDX: 0000000080000000 RSI: 0000000000000286 RDI: 0000000000000010
[ 4918.925692] RBP: ffff8800c6611d50 R08: 0000000000000001 R09: ffff8800c5b41f00
[ 4918.925692] R10: ffff8800cb217400 R11: ffff8800caf03400 R12: ffff8800c628e800
[ 4918.925692] R13: ffff8800c628e800 R14: 0000000000000001 R15: 0000000000000038
[ 4918.925692] FS: 00007f8700f46700(0000) GS:ffff88011fc00000(0000) knlGS:0000000000000000
[ 4918.925692] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 4918.925692] CR2: 0000000000000010 CR3: 00000000c974d000 CR4: 00000000000407f0
[ 4918.925692] DR0: 0000000000a80000 DR1: 0000000000000000 DR2: 0000000000000000
[ 4918.925692] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[ 4918.925692] Stack:
[ 4918.925692] ffff880119c62010 ffff8800c628e800 ffff8800c628e800 0000000000000000
[ 4918.925692] ffff8800c6611dc0 ffffffff810d10b7 ffff8800c5b41f48 0000000000000010
[ 4918.925692] ffff880119c62010 0000000000000286 0000000000000286 0000000119c62010
[ 4918.925692] Call Trace:
[ 4918.925692] [<ffffffff810d10b7>] perf_event_init_context+0x7c/0x1c8
[ 4918.925692] [<ffffffff810d126c>] perf_event_init_task+0x69/0x6d
[ 4918.925692] [<ffffffff8103e1ff>] copy_process+0x5cc/0x163b
[ 4918.925692] [<ffffffff8112a044>] ? __d_free+0x53/0x58
[ 4918.925692] [<ffffffff8112a6ab>] ? dentry_kill+0x1b8/0x1d5
[ 4918.925692] [<ffffffff81130d9d>] ? mntput+0x2a/0x2c
[ 4918.925692] [<ffffffff811193af>] ? __fput+0x17e/0x18d
[ 4918.925692] [<ffffffff8103f536>] do_fork+0x74/0x1dc
[ 4918.925692] [<ffffffff8111943a>] ? ____fput+0xe/0x10
[ 4918.925692] [<ffffffff81058960>] ? task_work_run+0x8d/0xa0
[ 4918.925692] [<ffffffff8103f6b4>] SyS_clone+0x16/0x18
[ 4918.925692] [<ffffffff81542c89>] stub_clone+0x69/0x90
[ 4918.925692] [<ffffffff815429e6>] ? system_call_fastpath+0x1a/0x1f
[ 4918.925692] Code: 48 8b 04 25 00 b9 00 00 b2 01 48 89 47 18 89 d0 c9 c3 55 48 89 e5 53 48 83 ec 18 66 66 66 66 90 48 89 fb e8 d7 f6 ff ff 48 89 df <f0> ff 0f 79 05 e8 7a 05 00 00 65 48 8b 04 25 00 b9 00 00 48 89
[ 4918.925692] RIP [<ffffffff81539fa6>] mutex_lock+0x19/0x37
[ 4918.925692] RSP <ffff8800c6611d30>
[ 4918.925692] CR2: 0000000000000010
[ 4919.771050] ---[ end trace 9a98d4ca40642975 ]---
next prev parent reply other threads:[~2014-05-05 17:07 UTC|newest]
Thread overview: 81+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-15 21:37 [perf] more perf_fuzzer memory corruption Vince Weaver
2014-04-15 21:49 ` Thomas Gleixner
2014-04-16 3:21 ` Vince Weaver
2014-04-16 4:18 ` Vince Weaver
2014-04-16 14:15 ` Peter Zijlstra
2014-04-16 17:30 ` Vince Weaver
2014-04-16 17:43 ` Vince Weaver
2014-04-16 17:47 ` Peter Zijlstra
2014-04-17 9:48 ` Ingo Molnar
2014-04-17 11:45 ` Peter Zijlstra
2014-04-17 14:22 ` Ingo Molnar
2014-04-17 14:42 ` Vince Weaver
2014-04-17 14:54 ` Peter Zijlstra
2014-04-17 15:35 ` Vince Weaver
2014-04-18 14:45 ` Vince Weaver
2014-04-18 14:51 ` Vince Weaver
2014-04-18 15:23 ` Peter Zijlstra
2014-04-18 16:59 ` Peter Zijlstra
2014-04-18 17:15 ` Peter Zijlstra
2014-04-23 20:58 ` Vince Weaver
2014-04-25 2:51 ` Vince Weaver
2014-04-28 14:21 ` Vince Weaver
2014-04-28 19:38 ` Vince Weaver
2014-04-29 9:46 ` Peter Zijlstra
2014-04-29 18:21 ` Vince Weaver
2014-04-29 19:01 ` Peter Zijlstra
2014-04-29 20:59 ` Vince Weaver
2014-04-30 18:44 ` Peter Zijlstra
2014-04-30 21:08 ` Vince Weaver
2014-04-30 22:51 ` Thomas Gleixner
2014-05-01 10:26 ` Peter Zijlstra
2014-05-01 11:50 ` Peter Zijlstra
2014-05-01 12:35 ` Thomas Gleixner
2014-05-01 13:12 ` Peter Zijlstra
2014-05-01 13:29 ` Thomas Gleixner
2014-05-01 13:22 ` Vince Weaver
2014-05-01 14:07 ` Vince Weaver
2014-05-01 14:27 ` Vince Weaver
2014-05-01 15:09 ` Peter Zijlstra
2014-05-01 15:50 ` Vince Weaver
2014-05-01 16:31 ` Thomas Gleixner
2014-05-01 17:18 ` Vince Weaver
2014-05-01 18:49 ` Vince Weaver
2014-05-01 21:32 ` Vince Weaver
2014-05-02 11:15 ` Peter Zijlstra
2014-05-02 15:42 ` Peter Zijlstra
2014-05-02 16:22 ` Vince Weaver
2014-05-02 16:22 ` Peter Zijlstra
2014-05-02 16:43 ` Vince Weaver
2014-05-02 17:27 ` Peter Zijlstra
2014-05-02 17:46 ` Vince Weaver
2014-05-02 19:12 ` Thomas Gleixner
2014-05-02 20:15 ` Vince Weaver
2014-05-02 20:45 ` Thomas Gleixner
2014-05-03 2:32 ` Vince Weaver
2014-05-03 3:02 ` Vince Weaver
2014-05-03 7:33 ` Peter Zijlstra
2014-05-05 9:31 ` Peter Zijlstra
2014-05-05 16:00 ` Vince Weaver
2014-05-05 17:10 ` Vince Weaver [this message]
2014-05-05 17:14 ` Peter Zijlstra
2014-05-05 18:47 ` Vince Weaver
2014-05-05 19:36 ` Peter Zijlstra
2014-05-05 19:51 ` Vince Weaver
2014-05-06 1:06 ` Vince Weaver
2014-05-06 16:57 ` Vince Weaver
2014-05-07 16:45 ` Peter Zijlstra
2014-05-08 10:40 ` [tip:perf/core] perf: Fix perf_event_init_context() tip-bot for Peter Zijlstra
2014-05-05 17:29 ` [perf] more perf_fuzzer memory corruption Ingo Molnar
2014-05-06 4:51 ` Vince Weaver
2014-05-06 17:06 ` Vince Weaver
2014-05-07 19:12 ` Ingo Molnar
2014-05-07 19:11 ` Ingo Molnar
2014-05-08 10:40 ` [tip:perf/core] perf: Fix race in removing an event tip-bot for Peter Zijlstra
2014-05-02 17:06 ` [perf] more perf_fuzzer memory corruption Vince Weaver
2014-05-02 17:04 ` Peter Zijlstra
2014-04-29 19:26 ` Steven Rostedt
2014-04-29 8:52 ` Peter Zijlstra
2014-04-29 18:11 ` Vince Weaver
2014-04-29 19:21 ` Steven Rostedt
2014-04-28 17:48 ` Thomas Gleixner
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=alpine.DEB.2.10.1405051309160.31072@vincent-weaver-1.umelst.maine.edu \
--to=vincent.weaver@maine.edu \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@kernel.org \
--cc=peterz@infradead.org \
--cc=rostedt@goodmis.org \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.