linux-kernel - Re: [ANNOUNCE] 3.0-rt2

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Message-ID: <20110724010932.GA2133@zhy>
Date:	Sun, 24 Jul 2011 09:09:33 +0800
From:	Yong Zhang <yong.zhang0@...il.com>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	linux-rt-users <linux-rt-users@...r.kernel.org>
Subject: Re: [ANNOUNCE] 3.0-rt2

On Sat, Jul 23, 2011 at 05:13:30PM +0200, Thomas Gleixner wrote:
> Dear RT Folks,
> 
> I'm pleased to announce the 3.0-rt2 release.
> 
> Changes versus 3.0-rt1:
> 
>   * mqueue fix (Yoshitake Kobayashi)
> 
>   * dca locking fix (Mike Galbraith)
> 
>   * trace updates (Carsten Emde)
> 
>   * Fixed vprintk wreckage and rcutorture (tglx)
> 
> Known issues:
> 
>   * Some weird "console=..." commandline + config dependent
>     interactions which have been not yet investigated down to their
>     root cause. Result in a boot hang. YMMV
> 
> Patch against 3.0 can be found here:
> 
>   http://www.kernel.org/pub/linux/kernel/projects/rt/patch-3.0-rt2.patch.bz2
> 
> The split quilt queue is available at:
> 
>   http://www.kernel.org/pub/linux/kernel/projects/rt/patches-3.0-rt2.tar.bz2
> 

I get below bug on my notebook:

[ 1244.912596] BUG: sleeping function called from invalid context at kernel/rtmutex.c:645
[ 1244.912599] in_atomic(): 1, irqs_disabled(): 0, pid: 1713, name: chromium-browse
[ 1244.912603] Pid: 1713, comm: chromium-browse Not tainted 3.0.0-rt2-00236-g4cf2acd #59
[ 1244.912605] Call Trace:
[ 1244.912613]  [<c15cee54>] ? printk+0x1d/0x21
[ 1244.912618]  [<c1036086>] __might_sleep+0xe6/0x110
[ 1244.912621]  [<c15d151c>] rt_spin_lock+0x1c/0x40
[ 1244.912626]  [<c111f763>] mem_cgroup_split_huge_fixup+0x43/0xd0
[ 1244.912629]  [<c11195d8>] split_huge_page+0x208/0x770
[ 1244.912632]  [<c15d1a25>] ? _raw_spin_lock+0x15/0x30
[ 1244.912635]  [<c1040362>] ? migrate_enable+0xc2/0x130
[ 1244.912638]  [<c111a20b>] __split_huge_page_pmd+0x7b/0xc0
[ 1244.912641]  [<c10fadb5>] unmap_vmas+0x5a5/0x620
[ 1244.912645]  [<c10e5e73>] ? lru_add_drain+0xe3/0x1d0
[ 1244.912648]  [<c10faeaa>] zap_page_range+0x7a/0xa0
[ 1244.912651]  [<c15d0d5f>] ? rt_mutex_lock+0x1f/0x50
[ 1244.912653]  [<c10f81a4>] sys_madvise+0x294/0x5f0
[ 1244.912656]  [<c10fe520>] ? remove_vma+0x50/0x70
[ 1244.912660]  [<c15d7ddf>] sysenter_do_call+0x12/0x2d

And kernel config is attached.

Thanks,
Yong

Download attachment "config.gz" of type "application/octet-stream" (24475 bytes)