linux-kernel - Re: [ltt-dev] LTTng 0.74 for Linux 2.6.28 (ext4 tracepoints) (fixed in LTTng 0.78)

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Date:	Tue, 13 Jan 2009 19:13:46 -0500
From:	Theodore Tso <tytso@....edu>
To:	Mathieu Desnoyers <compudj@...stal.dyndns.org>
Cc:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Ext4 Developers List <linux-ext4@...r.kernel.org>,
	ltt-dev@...ts.casi.polymtl.ca, linux-kernel@...r.kernel.org
Subject: Re: [ltt-dev] LTTng 0.74 for Linux 2.6.28 (ext4 tracepoints)
	(fixed in LTTng 0.78)

On Tue, Jan 13, 2009 at 05:58:27PM -0500, Mathieu Desnoyers wrote:
> > 
> > -ECANTBUILD
> > 
> Thanks for the report. This should be fixed in LTTng 0.78 now.

Out of curiosity, do you maintain a branch of LTTNG versus any of the
-rc kernels, or do you only track the stable kernels?  I tried pulling
LTTNG 0.78 against the most recent Linus mainline and got a whole pile
of conflicts.

I then tried building LTTng 0.78 and got build failures:

  CC      arch/x86/kernel/init_task.o
distcc[27501] ERROR: compile /var/cache/ccache/init_task.tmp.closure.27497.i on localhost failed
/usr/projects/linux/ext4/arch/x86/kernel/init_task.c:35: error: unknown field ‘user_markers_mutex’ specified in initializer
/usr/projects/linux/ext4/arch/x86/kernel/init_task.c:35: warning: braces around scalar initializer
/usr/projects/linux/ext4/arch/x86/kernel/init_task.c:35: warning: (near initialization for ‘init_task.latency_record_count’)
/usr/projects/linux/ext4/arch/x86/kernel/init_task.c:35: error: field name not in record or union initializer
/usr/projects/linux/ext4/arch/x86/kernel/init_task.c:35: error: (near initialization for ‘init_task.latency_record_count’)

Looks like CONFIG_MARKERS_USERSPAC is busted....

						- Ted
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