From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Mosberger Date: Mon, 24 Jan 2005 19:17:59 +0000 Subject: RE: [patch] ia64: fix potential NaT bit error for sys_pipe(). Message-Id: <16885.18919.810421.804200@napali.hpl.hp.com> List-Id: References: <16878.2168.388519.26567@napali.hpl.hp.com> In-Reply-To: <16878.2168.388519.26567@napali.hpl.hp.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org >>>>> On Thu, 20 Jan 2005 19:32:48 -0800, "Chen, Kenneth W" said: Ken> We would rather not to change THREAD_FLAGS_TO_CLEAR definition. Ken> mfh bit in child pt_regs is cleared right above where the Ken> comment is. I think it is better as is so that child thread Ken> fph partition stays invalidated. Sorry, I was a bit in a rush when I typed that mail and made some errors as a result. I think what you propose is reasonable, since just clearing PSR.MFH will take care of avoiding needless context-switching of f32-f127. However, I think it'd still be worthwhile to update the comment in copy_thread() to reflect this thinking (basically, the paragraph starting with "XXX" would have to be updated). --david