Bug 15304

Summary: SMT scheduler regression in find_busiest_queue()
Product: Process Management Reporter: Rafael J. Wysocki (rjw)
Component: SchedulerAssignee: Ingo Molnar (mingo)
Status: RESOLVED PATCH_ALREADY_AVAILABLE    
Severity: normal CC: maciej.rutecki
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: 2.6.32 Tree: Mainline
Regression: Yes
Bug Depends on:    
Bug Blocks: 14230    

Description Rafael J. Wysocki 2010-02-14 23:01:03 UTC
Subject    : [patch] sched: fix SMT scheduler regression in find_busiest_queue()
Submitter  : Suresh Siddha <suresh.b.siddha@intel.com>
Date       : 2010-02-13 1:14
Message-ID : 1266023662.2808.118.camel@sbs-t61.sc.intel.com
References : http://marc.info/?l=linux-kernel&m=126602374511831&w=4
Handled-By : Suresh Siddha <suresh.b.siddha@intel.com>
Patch      : http://patchwork.kernel.org/patch/79039/

This entry is being used for tracking a regression from 2.6.31.  Please don't
close it until the problem is fixed in the mainline.

Caused by:

   commit bdb94aa5dbd8b55e75f5a50b61312fe589e2c2d1
   Author: Peter Zijlstra <a.p.zijlstra@chello.nl>
   Date:   Tue Sep 1 10:34:38 2009 +0200

   sched: Try to deal with low capacity

First-Bad-Commit : bdb94aa5dbd8b55e75f5a50b61312fe589e2c2d1