The bug in Ubuntu 11.04 has now been fixed. [LWN.net]

The bug in Ubuntu 11.04 has now been fixed.

Posted Jan 31, 2011 19:43 UTC (Mon) by diwic (subscriber, #71318)
Parent article: Realtime group scheduling doesn't know JACK

This is now fixed in 2.6.38-rc2 kernel, and the corresponding 2.6.38-1-generic kernel in Ubuntu.

The bug was caused by the autogroup patch, which the development version of Ubuntu (11.04) applied on top of 2.6.37 for testing/experimental purposes. That's why Ubuntu got it before anyone else did.

The fix:

commit f44937718ce3b8360f72f6c68c9481712517a867
Author: Mike Galbraith <efault@gmx.de>
Date: Thu Jan 13 04:54:50 2011 +0100

sched, autogroup: Fix CONFIG_RT_GROUP_SCHED sched_setscheduler() failure

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