From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Wed, 31 Mar 2010 15:50:37 +0200
From: Jan Kiszka <jan.kiszka@domain.hid>
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Subject: [Xenomai-core] FYI: CONFIG_PERF_EVENTS conflicts with Xenomai
	shadows
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To: xenomai-core <xenomai@xenomai.org>
Cc: adeos-main <adeos-main@gna.org>

Hi,

just ran into an ugly warning of I-pipe as I happened to have
CONFIG_PERF_EVENTS enabled in 2.6.32 kernel. That pulls some plain Linux
spinlock into the finish_task_switch path.

We should either disable this feature at I-pipe level or patch it
properly. Haven't checked yet if the latter is feasible with moderate
effort, though.

Jan

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Siemens AG, Corporate Technology, CT T DE IT 1
Corporate Competence Center Embedded Linux