From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Thu, 7 Feb 2002 14:56:20 -0700 From: Val Henson To: Benjamin Herrenschmidt Cc: linuxppc-dev@lists.linuxppc.org Subject: Re: Highmem on PPC? Message-ID: <20020207145620.E19569@boardwalk> References: <20020207144308.C19569@boardwalk> <20020207215105.3897@smtp.wanadoo.fr> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20020207215105.3897@smtp.wanadoo.fr>; from benh@kernel.crashing.org on Thu, Feb 07, 2002 at 10:51:05PM +0100 Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: On Thu, Feb 07, 2002 at 10:51:05PM +0100, Benjamin Herrenschmidt wrote: > > >as a result. Any ideas for stressing the system harder? > > Well, I don't know what your previous kernel had, but recent _devel > has my fix to limit lowmem to what can be mapped by BATs on SMP. > That may help with the 7410. If the machine ends up beeing really > stable, then I'll have to look into CPU bugs for my 7450 problems. The previous kernel was 2.4.12 based, with a hack from me to limit lowmem to 512MB. And I was using SCSI, which has hardware bugs on my board, in addition to exercising bounce buffers much more strongly. In summary, I don't have the faintest idea what was causing the hangs. I'll try booting my old 2.4.12 kernel NFS root and see if it's just as stable. -VAL ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/