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Date: Mon, 2 Feb 2009 14:27:28 +0300
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Subject: next-20090202: task kmemleak:763 blocked for more than 120 seconds.
From: Alexander Beregalov <a.beregalov@gmail.com>
To: "linux-next@vger.kernel.org" <linux-next@vger.kernel.org>,
       Catalin Marinas <catalin.marinas@arm.com>,
       LKML <linux-kernel@vger.kernel.org>
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Hi

It seems it is blocked forever.

[ 1704.619898] INFO: task kmemleak:763 blocked for more than 120 seconds.
[ 1704.697951] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[ 1704.791613] kmemleak      D 0000000000000001  6008   763      2
[ 1704.862460]  ffff88007d497e60 0000000000000046 ffff88007d497da0
ffff88007d6a4000
[ 1704.951037]  ffff88007d6a4000 0000000000004000 0000000000000002
ffff88007d6a4000
[ 1705.039609]  ffff88007d80a000 ffff88007d6a4398 0000000200000000
00000001000758b5
[ 1705.128202] Call Trace:
[ 1705.157383]  [<ffffffff806379f2>] ? _spin_unlock_irqrestore+0x42/0x80
[ 1705.234396]  [<ffffffff80634c86>] ? schedule_timeout+0x66/0xe0
[ 1705.304137]  [<ffffffff80634a43>] schedule+0x13/0x40
[ 1705.363483]  [<ffffffff80634c86>] schedule_timeout+0x66/0xe0
[ 1705.431145]  [<ffffffff8024c7c0>] ? process_timeout+0x0/0x10
[ 1705.498918]  [<ffffffff80634c81>] ? schedule_timeout+0x61/0xe0
[ 1705.568663]  [<ffffffff80634d19>] schedule_timeout_uninterruptible+0x19/0x20
[ 1705.652987]  [<ffffffff802c3830>] kmemleak_scan_thread+0x120/0x170
[ 1705.726889]  [<ffffffff802c3710>] ? kmemleak_scan_thread+0x0/0x170
[ 1705.800784]  [<ffffffff80258d66>] kthread+0x56/0x90
[ 1705.859088]  [<ffffffff8020ce9a>] child_rip+0xa/0x20
[ 1705.918441]  [<ffffffff80235489>] ? finish_task_switch+0x89/0x110
[ 1705.991303]  [<ffffffff80637986>] ? _spin_unlock_irq+0x36/0x60
[ 1706.061041]  [<ffffffff8020c880>] ? restore_args+0x0/0x30
[ 1706.125584]  [<ffffffff80258d10>] ? kthread+0x0/0x90
[ 1706.184917]  [<ffffffff8020ce90>] ? child_rip+0x0/0x20
[ 1706.246334] no locks held by kmemleak/763.