From: Darren Hart <dvhart@linux.intel.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Maarten Lankhorst <m.b.lankhorst@gmail.com>,
LKML <linux-kernel@vger.kernel.org>,
linux-rt-users <linux-rt-users@vger.kernel.org>
Subject: Re: [ANNOUNCE] 3.0-rt3
Date: Mon, 25 Jul 2011 15:20:10 -0700 [thread overview]
Message-ID: <4E2DEC1A.5070109@linux.intel.com> (raw)
In-Reply-To: <alpine.LFD.2.02.1107241807390.3136@ionos>
On 07/24/2011 09:12 AM, Thomas Gleixner wrote:
> On Sun, 24 Jul 2011, Maarten Lankhorst wrote:
...
>> Also not sure where this one came from:
>> [ 37.456688] BUG: spinlock bad magic on CPU#3, threaded-ml/1619
>> [ 37.456690] lock: ffff8801fdc74d50, .magic: 00000000, .owner: <none>/-1, .owner_cpu: 0
>> [ 37.456692] Pid: 1619, comm: threaded-ml Tainted: G C 3.0.0-rt3-patser+ #39
>> [ 37.456693] Call Trace:
>> [ 37.456697] [<ffffffff81607a78>] spin_bug+0xa0/0xa8
>> [ 37.456699] [<ffffffff8132b412>] do_raw_spin_lock+0xa2/0x170
>> [ 37.456702] [<ffffffff8104a201>] ? get_parent_ip+0x11/0x50
>> [ 37.456704] [<ffffffff8160d783>] _raw_spin_lock+0x23/0x30
>> [ 37.456706] [<ffffffff810931ce>] rt_mutex_start_proxy_lock+0x2e/0xd0
>> [ 37.456708] [<ffffffff8109093a>] futex_requeue+0x47a/0x850
>> [ 37.456710] [<ffffffff8109138e>] do_futex+0xae/0xb00
>> [ 37.456712] [<ffffffff81157dcd>] ? fget_light+0x6d/0x110
>> [ 37.456714] [<ffffffff810b77b7>] ? audit_syscall_entry+0x2e7/0x310
>> [ 37.456715] [<ffffffff814c9375>] ? sys_recvmsg+0x75/0x90
>> [ 37.456717] [<ffffffff810923e6>] compat_sys_futex+0xf6/0x190
>> [ 37.456719] [<ffffffff8100e864>] ? syscall_trace_enter+0x184/0x210
>> [ 37.456721] [<ffffffff816158b3>] ia32_do_call+0x13/0x13
>
> Urrgh, that's not a good one. Darren, can you please have a look at that?
>
Will do.
Maarten, what are you running when you hit this?
rt_mutex_start_proxy_lock() is only called by the requeue_pi code and
there is no libc support for that yet, so I'm surprised to see that in
the stack trace (unless you're running my futextest suite).
--
Darren Hart
Intel Open Source Technology Center
Yocto Project - Linux Kernel
next prev parent reply other threads:[~2011-07-25 22:20 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-24 10:33 [ANNOUNCE] 3.0-rt3 Thomas Gleixner
2011-07-24 14:40 ` Maarten Lankhorst
2011-07-24 16:12 ` Thomas Gleixner
2011-07-24 16:42 ` hermann
2011-07-24 16:44 ` Thomas Gleixner
2011-07-24 16:53 ` hermann
2011-07-24 17:23 ` Georgiewskiy Yuriy
2011-07-25 22:20 ` Darren Hart [this message]
2011-07-26 6:00 ` Darren Hart
2011-07-26 11:44 ` Maarten Lankhorst
2011-07-26 17:01 ` Darren Hart
2011-07-26 17:11 ` Maarten Lankhorst
2011-07-27 1:57 ` [ANNOUNCE] 3.0-rt3 (futex_requeue bad spinlock magic) Darren Hart
2011-07-27 8:25 ` Darren Hart
2011-07-26 9:01 ` [ANNOUNCE] 3.0-rt3 Thomas Gleixner
2011-07-25 22:55 ` Fernando Lopez-Lezcano
2011-07-26 9:13 ` Uwe Kleine-König
2011-07-26 23:52 ` Fernando Lopez-Lezcano
2011-07-26 23:57 ` Fernando Lopez-Lezcano
2011-07-26 3:11 ` Frank Rowand
2011-07-26 9:30 ` Uwe Kleine-König
2011-07-26 3:12 ` Frank Rowand
2011-07-26 9:19 ` Uwe Kleine-König
2011-07-26 9:25 ` Thomas Gleixner
2011-07-26 3:14 ` Frank Rowand
2011-07-26 3:49 ` Darren Hart
2011-07-26 6:20 ` Yong Zhang
2011-07-27 18:05 ` N, Mugunthan V
2011-07-27 18:32 ` 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=4E2DEC1A.5070109@linux.intel.com \
--to=dvhart@linux.intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-rt-users@vger.kernel.org \
--cc=m.b.lankhorst@gmail.com \
--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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox