From: Ingo Molnar <mingo@elte.hu>
To: Jens Axboe <axboe@kernel.dk>
Cc: Peter Zijlstra <peterz@infradead.org>,
piotr@hosowicz.com, linux-kernel@vger.kernel.org,
Divyesh Shah <dpshah@google.com>
Subject: blkiocg_update_io_add_stats(): INFO: trying to register non-static key
Date: Wed, 2 Jun 2010 13:16:53 +0200 [thread overview]
Message-ID: <20100602111653.GA25662@elte.hu> (raw)
In-Reply-To: <20100601065500.GA7876@elte.hu>
btw., there's another warning triggered by the new blk-cgroups stats code:
sda:INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
Pid: 81, comm: async/2 Not tainted 2.6.35-rc1-tip-01073-gd2f7698-dirty #6765
Call Trace:
[<ffffffff81065d6d>] register_lock_class+0x15f/0x365
[<ffffffff8105c426>] ? sched_clock_local+0x1d/0x83
[<ffffffff8105c557>] ? sched_clock_cpu+0xcb/0xd9
[<ffffffff81067184>] __lock_acquire+0x97/0x481
[<ffffffff810088d4>] ? native_sched_clock+0x37/0x6d
[<ffffffff81321b74>] ? blkiocg_update_io_add_stats+0x32/0x12e
[<ffffffff81067644>] lock_acquire+0xd6/0xfd
[<ffffffff81321b74>] ? blkiocg_update_io_add_stats+0x32/0x12e
[<ffffffff81850859>] _raw_spin_lock_irqsave+0x47/0x82
[<ffffffff81321b74>] ? blkiocg_update_io_add_stats+0x32/0x12e
[<ffffffff81321b74>] blkiocg_update_io_add_stats+0x32/0x12e
[<ffffffff81325048>] cfq_insert_request+0xdd/0x47c
[<ffffffff813135b9>] elv_insert+0x12a/0x1f4
[<ffffffff8131371c>] __elv_add_request+0x99/0xa1
[<ffffffff8131817a>] __make_request+0x3e2/0x45f
[<ffffffff8131736e>] generic_make_request+0x2a0/0x316
[<ffffffff8185405e>] ? sub_preempt_count+0xf/0xb7
[<ffffffff8131749c>] submit_bio+0xb8/0xd6
[<ffffffff81117e1b>] submit_bh+0xf5/0x117
[<ffffffff8111b36e>] block_read_full_page+0x1f2/0x214
[<ffffffff8111ce86>] ? blkdev_get_block+0x0/0x66
[<ffffffff8185405e>] ? sub_preempt_count+0xf/0xb7
[<ffffffff8185405e>] ? sub_preempt_count+0xf/0xb7
[<ffffffff810c6ddd>] ? __lru_cache_add+0x79/0x97
[<ffffffff8111de4d>] blkdev_readpage+0x18/0x1a
[<ffffffff810becb0>] do_read_cache_page+0x95/0x128
[<ffffffff8111de35>] ? blkdev_readpage+0x0/0x1a
[<ffffffff810bed87>] read_cache_page_async+0x1c/0x1e
[<ffffffff810bed97>] read_cache_page+0xe/0x18
[<ffffffff8114698f>] read_dev_sector+0x33/0xbe
[<ffffffff8114797d>] adfspart_check_EESOX+0x59/0x1e7
[<ffffffff8185405e>] ? sub_preempt_count+0xf/0xb7
[<ffffffff8185405e>] ? sub_preempt_count+0xf/0xb7
[<ffffffff8185405e>] ? sub_preempt_count+0xf/0xb7
[<ffffffff8103dede>] ? vprintk+0x395/0x3f0
[<ffffffff811472f0>] ? kzalloc.clone.1+0x13/0x15
[<ffffffff8184dfe5>] ? printk+0x69/0x6b
[<ffffffff8114771d>] rescan_partitions+0x186/0x38d
[<ffffffff81513cfb>] ? sd_open+0xf1/0x1bd
[<ffffffff8111e512>] __blkdev_get+0x291/0x372
[<ffffffff8132a4ba>] ? kobject_put+0x48/0x4c
[<ffffffff8111e603>] blkdev_get+0x10/0x12
[<ffffffff81146bcd>] register_disk+0xb9/0x11d
[<ffffffff8131f3c4>] add_disk+0xb0/0x10c
[<ffffffff81515d4c>] sd_probe_async+0x12a/0x200
[<ffffffff8105f4a4>] ? ktime_get+0x65/0xbe
[<ffffffff8105d742>] async_thread+0x10e/0x21c
[<ffffffff81039390>] ? default_wake_function+0x0/0x14
[<ffffffff8105d634>] ? async_thread+0x0/0x21c
[<ffffffff81056c01>] kthread+0x9b/0xa3
[<ffffffff810030f4>] kernel_thread_helper+0x4/0x10
[<ffffffff81056b66>] ? kthread+0x0/0xa3
[<ffffffff810030f0>] ? kernel_thread_helper+0x0/0x10
sda1 sda2 sda3 < sda5 sda6 sda7 sda8 sda9 sda10 >
device: 'sda1': device_add
PM: Adding info for No Bus:sda1
seems to be a lock taken by:
[<ffffffff81321b74>] blkiocg_update_io_add_stats+0x32/0x12e
Ingo
next prev parent reply other threads:[~2010-06-02 11:17 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-24 3:03 BUG: using smp_processor_id() in preemptible [00000000] code: icedove-bin/5449 Piotr Hosowicz
2010-05-24 17:22 ` Piotr Hosowicz
2010-05-25 8:50 ` Peter Zijlstra
2010-05-25 9:42 ` Piotr Hosowicz
2010-05-25 9:45 ` Peter Zijlstra
2010-05-25 9:43 ` Ingo Molnar
2010-05-25 9:47 ` Peter Zijlstra
2010-05-25 9:51 ` Peter Zijlstra
2010-05-25 9:57 ` Piotr Hosowicz
2010-05-25 10:00 ` Peter Zijlstra
2010-05-25 10:05 ` Piotr Hosowicz
2010-05-25 10:29 ` Piotr Hosowicz
2010-05-25 14:13 ` Piotr Hosowicz
2010-05-25 14:34 ` Piotr Hosowicz
2010-05-25 14:36 ` Peter Zijlstra
2010-05-25 14:48 ` Piotr Hosowicz
2010-05-25 16:15 ` Peter Zijlstra
2010-05-25 16:47 ` Piotr Hosowicz
2010-05-26 2:06 ` Piotr Hosowicz
2010-05-26 2:51 ` Piotr Hosowicz
2010-05-25 18:07 ` Divyesh Shah
2010-05-25 18:15 ` Piotr Hosowicz
2010-05-25 21:35 ` Peter Zijlstra
2010-05-26 23:02 ` Andrew Morton
2010-05-27 6:46 ` Peter Zijlstra
2010-05-27 6:51 ` Andrew Morton
[not found] ` <1274945751.27810.3765.camel@twins>
[not found] ` <20100527113340.d4afb8fc.akpm@linux-foundation.org>
2010-05-28 13:13 ` [PATCH] sched_clock: Provide local_clock() and improve documentation Peter Zijlstra
2010-05-28 13:42 ` Johannes Stezenbach
2010-05-28 15:08 ` Peter Zijlstra
2010-05-28 14:15 ` Piotr Hosowicz
2010-05-28 14:22 ` Piotr Hosowicz
2010-05-28 18:11 ` Chad Talbott
2010-05-28 18:22 ` Peter Zijlstra
2010-06-09 10:13 ` [tip:sched/core] sched_clock: Add local_clock() API " tip-bot for Peter Zijlstra
2010-06-01 6:41 ` BUG: using smp_processor_id() in preemptible [00000000] code: icedove-bin/5449 Ingo Molnar
2010-06-01 6:47 ` Jens Axboe
2010-06-01 6:55 ` Ingo Molnar
2010-06-01 7:53 ` Jens Axboe
2010-06-12 1:54 ` Divyesh Shah
2010-06-12 9:42 ` Peter Zijlstra
2010-06-02 11:16 ` Ingo Molnar [this message]
2010-06-02 13:04 ` blkiocg_update_io_add_stats(): INFO: trying to register non-static key Jens Axboe
2010-06-11 1:33 ` Divyesh Shah
2010-06-11 7:15 ` Peter Zijlstra
2010-06-11 8:34 ` Jens Axboe
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