From: Peter Zijlstra <peterz@infradead.org>
To: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jens Axboe <jens.axboe@oracle.com>, Greg KH <gregkh@suse.de>,
Ingo Molnar <mingo@elte.hu>, LKML <linux-kernel@vger.kernel.org>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
Steven Rostedt <rostedt@goodmis.org>,
Paul Mackerras <paulus@samba.org>,
Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>,
Li Zefan <lizf@cn.fujitsu.com>,
Lai Jiangshan <laijs@cn.fujitsu.com>,
Masami Hiramatsu <mhiramat@redhat.com>
Subject: Re: [PATCH 1/3] lockdep: Move lock events under lockdep recursion protection
Date: Wed, 10 Mar 2010 16:45:25 +0100 [thread overview]
Message-ID: <1268235925.5279.2.camel@twins> (raw)
In-Reply-To: <20100310000533.GF5058@nowhere>
On Wed, 2010-03-10 at 01:05 +0100, Frederic Weisbecker wrote:
> On Tue, Mar 09, 2010 at 09:35:37AM +0100, Jens Axboe wrote:
> > Which, btw, throws a new lockdep warning fest:
> >
> > [ 42.247718] scsi7 : ioc0: LSISAS1068E B3, FwRev=011b0300h,
> Ports=1, MaxQ=483, IRQ=26
> > [ 42.281125] BUG: key ffff880c7cb75250 not in .data!
> > [ 42.288346] ------------[ cut here ]------------
> > [ 42.294490] WARNING: at kernel/lockdep.c:2706 lockdep_init_map
> +0x545/0x5f0()
> > [ 42.304013] Hardware name: QSSC-S4R
> > [ 42.309674] Modules linked in: hid_apple usbhid ehci_hcd uhci_hcd
> usbcore nls_base mptsas(+) mptscsih mptbase scsi_transport_sas igb sg
> sr_mod cdrom
> > [ 42.332072] Pid: 5197, comm: modprobe Not tainted 2.6.34-rc1 #176
> > [ 42.340597] Call Trace:
> > [ 42.345335] [<ffffffff8107fb8d>] ? is_module_address+0x2d/0x60
> > [ 42.353670] [<ffffffff81074aa5>] ? lockdep_init_map+0x545/0x5f0
> > [ 42.362154] [<ffffffff81044648>] warn_slowpath_common+0x78/0xd0
> > [ 42.371913] [<ffffffff810446af>] warn_slowpath_null+0xf/0x20
> > [ 42.380109] [<ffffffff81074aa5>] lockdep_init_map+0x545/0x5f0
>
>
>
> This doesn't look related to my patch, it also happen in -rc1 right?
The per-cpu changes broke lockdep, Tejun already posted patches for
this:
http://lkml.org/lkml/2010/3/10/76
http://lkml.org/lkml/2010/3/10/79
next prev parent reply other threads:[~2010-03-10 15:45 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-03 6:54 [GIT PULL] perf updates Frederic Weisbecker
2010-03-03 6:55 ` [PATCH 1/3] lockdep: Move lock events under lockdep recursion protection Frederic Weisbecker
2010-03-09 7:18 ` Hitoshi Mitake
2010-03-10 0:10 ` Frederic Weisbecker
2010-03-09 8:34 ` Jens Axboe
2010-03-09 8:35 ` Jens Axboe
2010-03-10 0:05 ` Frederic Weisbecker
2010-03-10 15:45 ` Peter Zijlstra [this message]
2010-03-10 15:56 ` Jens Axboe
2010-03-10 15:55 ` Jens Axboe
2010-03-09 23:45 ` Frederic Weisbecker
2010-03-10 15:55 ` Jens Axboe
2010-03-03 6:55 ` [RFC][PATCH 2/3] perf: Take a hot regs snapshot for trace events Frederic Weisbecker
2010-03-03 8:38 ` Peter Zijlstra
2010-03-03 20:07 ` Frederic Weisbecker
2010-03-04 19:01 ` Frederic Weisbecker
2010-03-05 3:08 ` [PATCH 0/2] Perf " Frederic Weisbecker
2010-03-05 3:08 ` [PATCH 1/2] perf: Introduce new perf_save_regs() for hot regs snapshot Frederic Weisbecker
2010-03-05 15:08 ` Masami Hiramatsu
2010-03-05 16:38 ` Frederic Weisbecker
2010-03-05 17:08 ` Masami Hiramatsu
2010-03-05 17:17 ` Frederic Weisbecker
2010-03-05 20:55 ` [PATCH 1/2] perf: Introduce new perf_fetch_caller_regs() " Frederic Weisbecker
2010-03-05 20:55 ` [PATCH 2/2] perf: Take a hot regs snapshot for trace events Frederic Weisbecker
2010-03-05 3:08 ` Frederic Weisbecker
2010-03-03 16:06 ` [RFC][PATCH 2/3] " Steven Rostedt
2010-03-03 16:37 ` Peter Zijlstra
2010-03-03 17:07 ` Steven Rostedt
2010-03-03 17:16 ` Peter Zijlstra
2010-03-03 17:45 ` Steven Rostedt
2010-03-03 20:37 ` Frederic Weisbecker
2010-03-04 11:25 ` Ingo Molnar
2010-03-04 15:16 ` Steven Rostedt
2010-03-04 15:36 ` Ingo Molnar
2010-03-04 15:55 ` Steven Rostedt
2010-03-04 21:17 ` Ingo Molnar
2010-03-04 21:30 ` Steven Rostedt
2010-03-04 21:37 ` Frederic Weisbecker
2010-03-04 21:52 ` Thomas Gleixner
2010-03-04 22:01 ` Frederic Weisbecker
2010-03-04 22:02 ` Steven Rostedt
2010-03-04 22:09 ` Frederic Weisbecker
2010-03-03 6:55 ` [PATCH 3/3] perf/x86-64: Use frame pointer to walk on irq and process stacks Frederic Weisbecker
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