=Comment: #0================================================= Darren V. Hart <dvhltc.com> - 2008-07-03 13:10 EDT According to the SUS, when a SCHED_FIFO task's priority is lowered, it should be added to the head of the corresponding priority array: http://www.opengroup.org/onlinepubs/009695399/functions/xsh_chap02_08.html#tag_02_08_04_01 Peter Z. noticed this and wrote a patch to address it: http://lkml.org/lkml/2008/6/16/344 The dequeue_rt_stack() apparently still needs some work according to peterz comments. =Comment: #2================================================= Darren V. Hart <dvhltc.com> - 2008-07-03 13:22 EDT The enqueue_task changed in 2.6.25, so a backport will be required. It's a simple patch, so that shouldn't pose a problem. =Comment: #3================================================= Darren V. Hart <dvhltc.com> - 2008-07-03 15:01 EDT I've backported the patch and have an R2 patch ready. Currently under test on elm3b172 running release-testing.sh. =Comment: #4================================================= Darren V. Hart <dvhltc.com> - 2008-07-03 18:27 EDT [PATCH] Enqueue deprioritized RT tasks to head of prio array The attached patch is currently undergoing release-testing.
Created attachment 311140 [details] [PATCH] Enqueue deprioritized RT tasks to head of prio array
Are we good with this one?
(In reply to comment #11) > ------- Comment From williams 2008-08-20 09:46:33 EDT------- > Are we good with this one? Yup.
Verified by code review
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2008-0857.html