From: Udo van den Heuvel <udovdh@xs4all.nl>
To: RT <linux-rt-users@vger.kernel.org>
Subject: Re: 2.6.33.1-rt11 BUG: sleeping function called from invalid context at kernel/rtmutex.c:684
Date: Tue, 06 Apr 2010 15:34:29 +0200 [thread overview]
Message-ID: <4BBB3865.9070204@xs4all.nl> (raw)
In-Reply-To: <alpine.LFD.2.00.1004061005300.32352@localhost.localdomain>
Hallo Thomas,
On 2010-04-06 10:07, Thomas Gleixner wrote:
> On Sun, 4 Apr 2010, Udo van den Heuvel wrote:
>> I see a load of these after booting into 2.6.33.1-rt11:
>>
>> BUG: sleeping function called from invalid context at kernel/rtmutex.c:684
>> pcnt: 1 0 in_atomic(): 1, irqs_disabled(): 0, pid: 1507, name: md1_raid5
>> Pid: 1507, comm: md1_raid5 Not tainted 2.6.33.1-rt11 #1
>> Call Trace:
>> [<ffffffff8138fb8c>] ? rt_spin_lock+0x2c/0x70
>> [<ffffffff812becc4>] ? __raid_run_ops+0x304/0xc60
>> [<ffffffff812c0ccd>] ? handle_stripe+0x6bd/0x1a70
>> [<ffffffff8104b460>] ? mod_timer+0x150/0x200
>> [<ffffffff812c23f6>] ? raid5d+0x376/0x4f0
>> [<ffffffff8138e5bd>] ? schedule_timeout+0x22d/0x2b0
>> [<ffffffff8138fb8c>] ? rt_spin_lock+0x2c/0x70
>> [<ffffffff812cd0f3>] ? md_thread+0x53/0x120
>> [<ffffffff810573a0>] ? autoremove_wake_function+0x0/0x30
>> [<ffffffff812cd0a0>] ? md_thread+0x0/0x120
>> [<ffffffff81057016>] ? kthread+0x96/0xa0
>> [<ffffffff81037908>] ? finish_task_switch+0x58/0xd0
>> [<ffffffff810032d4>] ? kernel_thread_helper+0x4/0x10
>> [<ffffffff81056f80>] ? kthread+0x0/0xa0
>> [<ffffffff810032d0>] ? kernel_thread_helper+0x0/0x10
>>
>> As these appear to be touching my raid array I am quite eager to learn
>> how I can fix the BUGs.
>>
>> Please have a look and explain.
>
> That's caused by the get_cpu()/put_cpu() preempt disabled region. Can
> you try the following (untested) patch ?
After applying, compilign and rebooting the BUG-messages appear to be
gone (after a quick test).
Thanks!
Only issue remaining is this message:
Apr 6 15:25:02 nawdew rtkit-daemon[3484]: Failed to make ourselves RT:
Operation not permitted
(repeated a number of times)
Is this also -rt related?
Kind regards,
Udo
next prev parent reply other threads:[~2010-04-06 13:34 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-04 9:14 2.6.33.1-rt11 BUG: sleeping function called from invalid context at kernel/rtmutex.c:684 Udo van den Heuvel
2010-04-04 9:17 ` Udo van den Heuvel
2010-04-06 8:07 ` Thomas Gleixner
2010-04-06 13:34 ` Udo van den Heuvel [this message]
2010-04-06 13:43 ` Luis Claudio R. Goncalves
2010-04-06 14:01 ` Udo van den Heuvel
2010-04-06 14:39 ` Thomas Gleixner
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