From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Mosberger Date: Tue, 05 Nov 2002 00:22:01 +0000 Subject: [Linux-ia64] Re: O(1) scheduler fix for 2.5-ia64 Message-Id: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org >>>>> On Mon, 4 Nov 2002 19:53:07 +0100, Erich Focht said: Erich> Hi David, this problem is wellknown and I actually thought Erich> that it was solved. But it looks like the complex Erich> prepare_arch_switch() etc. macros didn't make it into the 2.5 Erich> kernels for IA64. They are needed on IA64 because we have to Erich> release the runqueue lock during context switch. This is Erich> similar to sparc64. Thanks to John Hawks for noticing this. Yes, this seems to have fallen through the cracks. Can you remind me what the deadlock scenario looked like? --david