From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e5.ny.us.ibm.com (e5.ny.us.ibm.com [32.97.182.145]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "e5.ny.us.ibm.com", Issuer "Equifax" (verified OK)) by ozlabs.org (Postfix) with ESMTP id F15B667B8D for ; Thu, 17 Aug 2006 10:02:20 +1000 (EST) Received: from westrelay02.boulder.ibm.com (westrelay02.boulder.ibm.com [9.17.195.11]) by e5.ny.us.ibm.com (8.12.11.20060308/8.12.11) with ESMTP id k7H02B8Q027609 for ; Wed, 16 Aug 2006 20:02:11 -0400 Received: from d03av02.boulder.ibm.com (d03av02.boulder.ibm.com [9.17.195.168]) by westrelay02.boulder.ibm.com (8.13.6/8.13.6/NCO v8.1.1) with ESMTP id k7H01322363568 for ; Wed, 16 Aug 2006 18:01:03 -0600 Received: from d03av02.boulder.ibm.com (loopback [127.0.0.1]) by d03av02.boulder.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id k7H013I8013962 for ; Wed, 16 Aug 2006 18:01:03 -0600 Subject: Re: [RFC PATCH 1/4] powerpc 2.6.16-rt17: to build on powerpc w/ RT From: john stultz To: Benjamin Herrenschmidt In-Reply-To: <1155771487.11312.114.camel@localhost.localdomain> References: <17628.4499.609213.401518@cargo.ozlabs.ibm.com> <1155318983.5337.2.camel@localhost.localdomain> <1155771487.11312.114.camel@localhost.localdomain> Content-Type: text/plain Date: Wed, 16 Aug 2006 17:00:59 -0700 Message-Id: <1155772859.15360.12.camel@localhost.localdomain> Mime-Version: 1.0 Cc: linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org, Paul Mackerras , mingo@elte.hu, tglx@linutronix.de List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Thu, 2006-08-17 at 01:38 +0200, Benjamin Herrenschmidt wrote: > > You might take a peek at the patch set here: > > http://sr71.net/~jstultz/tod/ for a somewhat rough powerpc conversion to > > CONFIG_GENERIC_TIME. > > Afaik, as-is, this patch will remove updating of the various bits used > by the vDSO for userland gettimeofday without actually removing the vdso > itself. Thus, with a recent glibc, it will break gettimeofday, > clock_gettime, .... Pretty bad :) Hey Ben, I appreciate your looking over my patch. You are correct, the conversion is a bit rough and I've not yet been able to work on the powerpc vDSO, although I'd like to get it working so any help or suggestions would be appreciated (is there a reason the vDSO is written in ASM?). If you have any other concerns w/ that patch, or the generic timekeeping code, please let me know and I'll do what I can to address them. thanks -john