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SubjectFw: Re: [kernel] Re: kernel/rcutree.h:301: sorry, unimplemented: inlining failed in call to 'rcu_bootup_announce': function body not available
Hello, Greg,

Could you please consider the following commit for 2.6.32-stable?
It fixes a build error that some people are seeing.

Thanx, Paul

dbe01350fa8ce0c11948ab7d6be71a4d901be151 rcu: Remove inline from forward-referenced functions

----- Forwarded message from "Mr. James W. Laferriere" <babydr@baby-dragons.com> -----
Date: Fri, 18 Dec 2009 10:05:46 -0900 (AKST)
From: "Mr. James W. Laferriere" <babydr@baby-dragons.com>
To: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
cc: Américo Wang <xiyou.wangcong@gmail.com>,
Linux Kernel Maillist <linux-kernel@vger.kernel.org>
Subject: Re: [kernel] Re: kernel/rcutree.h:301: sorry, unimplemented: inlining
failed in call to 'rcu_bootup_announce': function body not available

Hello Paul ,

On Fri, 18 Dec 2009, Paul E. McKenney wrote:
> On Fri, Dec 18, 2009 at 09:08:00AM -0900, Mr. James W. Laferriere wrote:
>> On Fri, 18 Dec 2009, Paul E. McKenney wrote:
>>> On Fri, Dec 18, 2009 at 08:07:51AM -0900, Mr. James W. Laferriere wrote:
>>>> On Fri, 18 Dec 2009, Paul E. McKenney wrote:
>>>>> On Fri, Dec 18, 2009 at 05:52:51PM +0800, Américo Wang wrote:
>>>>>> On Fri, Dec 18, 2009 at 1:45 PM, Mr. James W. Laferriere
>>>>>> <babydr@baby-dragons.com> wrote:
>>>>>>>        Hello All ,
>>>>>>>
>>>>>>>  gcc -Wp,-MD,kernel/.rcutree.o.d  -nostdinc -isystem
>>>>>>> /usr/lib/gcc/i486-slackware-linux/3.4.6/include -Iinclude
>>>>>>> -I/usr/src/linux-2.6.32.1/arch/x86/include -include
>>>>>>> include/linux/autoconf.h
>>>>>>> -D__KERNEL__ -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs
>>>>>>> -fno-strict-aliasing -fno-common
>>>>>>> -Werror-implicit-function-declaration
>>>>>>> -Wno-format-security -fno-delete-null-pointer-checks -O2 -m32
>>>>>>> -msoft-float
>>>>>>> -mregparm=3 -freg-struct-return -mpreferred-stack-boundary=2
>>>>>>> -fno-unit-at-a-time -march=i686 -ffreestanding -DCONFIG_AS_CFI=1
>>>>>>> -pipe
>>>>>>> -Wno-sign-compare -fno-asynchronous-unwind-tables -mno-sse -mno-mmx
>>>>>>> -mno-sse2 -mno-3dnow -fno-omit-frame-pointer
>>>>>>> -fno-optimize-sibling-calls
>>>>>>> -g
>>>>>>> -Wdeclaration-after-statement   -D"KBUILD_STR(s)=#s"
>>>>>>> -D"KBUILD_BASENAME=KBUILD_STR(rcutree)"
>>>>>>>  -D"KBUILD_MODNAME=KBUILD_STR(rcutree)" -c -o kernel/rcutree.o
>>>>>>> kernel/rcutree.c
>>>>>>> kernel/rcutree.c: In function `__rcu_init':
>>>>>>> kernel/rcutree.h:301: sorry, unimplemented: inlining failed in call
>>>>>>> to
>>>>>>> 'rcu_bootup_announce': function body not available
>>>>>>> kernel/rcutree.c:1740: sorry, unimplemented: called from here
>>>>>>> make[1]: *** [kernel/rcutree.o] Error 1
>>>>>>> make: *** [kernel] Error 2
>>>>>>>
>>>>>>>        There is no way ,  thru the 'make *config' methods to
>>>>>>> disable this
>>>>>>> broken stuff ,  So How may I get past this brokeness ?
>>>>>>>        And looking the posts for the 2.6.32-pre/rc the old rcu
>>>>>>> has
>>>>>>> been
>>>>>>> trashed completely .  So I am not able to even try using that .
>>>>>>>
>>>>>>>        Would someone please shed some light on this .  I really
>>>>>>> need the
>>>>>>> updates for the Fusion/mpt driver & the changes in the /md/ tree as
>>>>>>> well
>>>>>>> .
>>>>>>
>>>>>> Hmm, I see the problem, but not sure how to fix it...
>>>>>>
>>>>>> Paul, why do we have #include "rcutree_plugin.h" at the bottom
>>>>>> of rcutree.c? This looks strange for me...
>>>>>>
>>>>>> How about moving it up? At least just move upper to rcu_init().
>>>>>
>>>>> Could you please apply commit
>>>>> #dbe01350fa8ce0c11948ab7d6be71a4d901be151
>>>>> from Linus's git tree? Corresponding diff attached.
>>>>>
>>>>> Thanx, Paul
>>>>>
>>>>> ------------------------------------------------------------------------
>>>>>
>>>>> diff --git a/kernel/rcutree.h b/kernel/rcutree.h
>>>>> index c1891c3..ddb79ec 100644
>>>>> --- a/kernel/rcutree.h
>>>>> +++ b/kernel/rcutree.h
>>>>> @@ -301,7 +301,7 @@ DECLARE_PER_CPU(struct rcu_data,
>>>>> rcu_preempt_data);
>>>>> #else /* #ifdef RCU_TREE_NONCORE */
>>>>>
>>>>> /* Forward declarations for rcutree_plugin.h */
>>>>> -static inline void rcu_bootup_announce(void);
>>>>> +static void rcu_bootup_announce(void);
>>>>> long rcu_batches_completed(void);
>>>>> static void rcu_preempt_note_context_switch(int cpu);
>>>>> static int rcu_preempted_readers(struct rcu_node *rnp);
>>>>> diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
>>>>> index ef2a58c..c03edf7 100644
>>>>> --- a/kernel/rcutree_plugin.h
>>>>> +++ b/kernel/rcutree_plugin.h
>>>>> @@ -33,7 +33,7 @@ DEFINE_PER_CPU(struct rcu_data, rcu_preempt_data);
>>>>> /*
>>>>> * Tell them what RCU they are running.
>>>>> */
>>>>> -static inline void rcu_bootup_announce(void)
>>>>> +static void rcu_bootup_announce(void)
>>>>> {
>>>>> printk(KERN_INFO
>>>>> "Experimental preemptable hierarchical RCU
>>>>> implementation.\n");
>>>>> @@ -481,7 +481,7 @@ void exit_rcu(void)
>>>>> /*
>>>>> * Tell them what RCU they are running.
>>>>> */
>>>>> -static inline void rcu_bootup_announce(void)
>>>>> +static void rcu_bootup_announce(void)
>>>>> {
>>>>> printk(KERN_INFO "Hierarchical RCU implementation.\n");
>>>>> }
>>>>
>>>> Thank you & Americo for responding .
>>>>
>>>> Patch applied & same error as far as I can tell .
>>>> did
>>>>
>>>> make mrproper
>>>> cp ../old.config .config (same as in previous email)
>>>> make oldconfig
>>>> ( time make V=1 KBUILD_VERBOSE=1 INSTALL_PATH=/boot clean all install
>>>> modules_install ) >../linux-2.6.32.1d.log 2>&1
>>>> error'd (See below) ...
>>>>
>>>> If there is any further info I can provide or something I can do to
>>>> provide , Please request it .
>>>
>>> Hmmm.... Yes. Could you please execute the following command from
>>> the top-level directory of your patched kernel source tree?
>>>
>>> grep rcu_bootup_announce kernel/rcu*
>>>
>>> I would expect the following output:
>>>
>>> kernel/rcutree.c: rcu_bootup_announce();
>>> kernel/rcutree.h:static void rcu_bootup_announce(void);
>>> kernel/rcutree_plugin.h:static void __init rcu_bootup_announce(void)
>>> kernel/rcutree_plugin.h:static void __init rcu_bootup_announce(void)
>>>
>>> Thanx, Paul
>>
>> This is with your patch applied on top of linux-2.6.32.1.tar.gz
>> no other patches or additions .
>>
>> OK , it looks like I wandered right by the first file ie:
>> 'kernel/rcutree.h' so I need to patch that as well . Doing this by hand
>> as
>> the offending system is not online and all I have is serial console
>> access
>> presently .
>> But , the last two you've changed to 'void __init' instead of just
>> 'void'
>> .
>> Do you want me to add those changes to the file
>> 'kernel/rcutree_plugin.h'
>> as well ?
>
> We were starting from different places. The important thing is to
> remove the "inline" declarations.
Ok , That was the very reason for why I asked this question .

>> # grep rcu_bootup_announce kernel/rcu*
>> kernel/rcutree.c: rcu_bootup_announce();
>> kernel/rcutree.h:static inline void rcu_bootup_announce(void);
>
> The above "inline" needs to go as well. (Ah, as you noted above.)
> Strange -- this change -was- in the patch I sent.
I also mentioned not seeing the first file in the patch so I had to go
back & edit it also .

>> kernel/rcutree_plugin.h:static void rcu_bootup_announce(void)
>> kernel/rcutree_plugin.h:static void rcu_bootup_announce(void)
>
> Does removing all three "inline" directives fix your build?
>
> Thanx, Paul
Yes , Removing the 'inline's from all three locations gets me past the
rcu error issue . But now I am into errors in the code that I was really
interested in getting 2.6.32 for are now error'ng . I'll place those
errors onto the list & other authors in another email .

Thank you , for your efforts & the success . JimL
--
+------------------------------------------------------------------+
| James W. Laferriere | System Techniques | Give me VMS |
| Network&System Engineer | 3237 Holden Road | Give me Linux |
| babydr@baby-dragons.com | Fairbanks, AK. 99709 | only on AXP |
+------------------------------------------------------------------+

----- End forwarded message -----
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