From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: Re: 4way smp on ppc32 From: Benjamin Herrenschmidt To: ERIC NORTHUP Cc: linuxppc-dev list In-Reply-To: <7eb2247ee728.7ee7287eb224@jhumail.jhu.edu> References: <7eb2247ee728.7ee7287eb224@jhumail.jhu.edu> Content-Type: text/plain Message-Id: <1080720349.1435.11.camel@gaston> Mime-Version: 1.0 Date: Wed, 31 Mar 2004 18:05:50 +1000 Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: On Wed, 2004-03-31 at 11:57, ERIC NORTHUP wrote: > Hi all, > > I have been trying to get my 4-processor Daystar GenesisMP system to run Linux in smp mode, > without success. The system works reliably with a uniprocessor kernel. > But it oopses on boot with an smp kernel. I have attached a boot log from a > serial console for a 2.6 kernel, but I get similar messages with other > kernels I've tried. Although the log is from 2.6.4, I've tried 2.6.5-pre3 which > included some ppc32 fixes, though they didn't fix this problem. > I've also tried different gcc versions. > > I don't understand why only 2 of the 4 cpus would respond to the smp_call_function(). > Any suggestions for where to start looking? I am not subscribed to linuxppc-dev, > so please CC me on replies. Thanks, Interesting... Apparently, all the CPUs are coming in, but interrupts don't get properly delivered to the "other" CPUs... I'll have a look, that setup should work. Did you try a 2.4 kernel ? Ben. ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/