From mboxrd@z Thu Jan  1 00:00:00 1970
From: jwboyer@linux.vnet.ibm.com (Josh Boyer)
Date: Mon, 16 Mar 2009 16:01:15 -0400
Subject: [ltt-dev] 2.6.29-rc7-lttng-0.110 broken with CONFIG_SLUB
In-Reply-To: <20090316194459.GD11878@Krystal>
References: <20090316182227.GA2444@yoda.jdub.homelinux.org>
	<20090316194459.GD11878@Krystal>
Message-ID: <20090316200115.GA22538@yoda.jdub.homelinux.org>

On Mon, Mar 16, 2009 at 03:44:59PM -0400, Mathieu Desnoyers wrote:
>* Josh Boyer (jwboyer at linux.vnet.ibm.com) wrote:
>> Hi All,
>> 
>> I was attempting to build a simple ppc64_defconfig using
>> the latest LTTng tag from git.  When doing a:
>> 
>> 	make ppc64_defconfig
>> 	make
>> 
>> I get the error below.
>> 
>
>Hi Josh,
>
>Yes, LTTng has been tested with slub, but not for the powerpc64
>cross-build. Thanks for the report, this is actually a header circular
>dependency I caused. It should be fixed in LTTng 0.111.

Bah. Yes, I should have clarified on ppc/ppc64.  Sorry for the confusion
there.

>I'll have to update my powerpc64 cross compiler to test it, because I am
>stucked with a broken gcc 4.1. Please tell me if 0.111 fixes the problem
>for you or if you encounter other problems.

Yep, the extern on tb_ticks_per_sec is what I had come up with locally.
It should work fine, and does indeed get past the error I was seeing.  The
build now dies with:

kernel/irq/handle.c:259: error: __ksymtab_irq_to_desc causes a section type conflict
kernel/irq/handle.c:259: error: __ksymtab_irq_to_desc causes a section type conflict
make[2]: *** [kernel/irq/handle.o] Error 1
make[1]: *** [kernel/irq] Error 2
make: *** [kernel] Error 2
make: *** Waiting for unfinished jobs....

josh