From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Wed, 22 Mar 2006 23:17:47 +1100 From: Anton Blanchard To: Nick Piggin Subject: Re: [PATCH] possible scheduler deadlock in 2.6.16 Message-ID: <20060322121747.GE30422@krispykreme> References: <20060322104143.GC30422@krispykreme> <4421307F.8020300@yahoo.com.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <4421307F.8020300@yahoo.com.au> Cc: akpm@osdl.org, linuxppc-dev@ozlabs.org, mingo@elte.hu, linux-kernel@vger.kernel.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi Nick, > You're right. I can't think of a better fix, although we've been trying > to avoid adding cpu to the runqueue structure. > > I was going to suggest moving more work into wake_sleeping_dependent > instead, but cores with 4 and more threads now make that less desirable > I suppose. My thoughts too. I wasnt sure if davem is planning to use the sibling code for his niagara work, but locking us down to 2 siblings sounds like a bad idea. Anton