Hi, I have managed to boot the G4 (GigE) using a kernel built with the 4.3.5 compiler on the 8600. I have also discovered what prevented firefox from working with 4.3.5. It was picking up the 3.4.6 libstdc++ (possibly other internal tidbits as well). Even something as simple as:
#include <iostream> #include <string> using namespace std; inline void pr_message(string s="Hello world!") { cout<<s<<endl; } int main() { pr_message(); } Won't run using 4.3.5 and the libstdc++ from 3.4.6. They were both installed because I used 3.4.6 to build 4.3.5 after discovering that 3.4.6 can't build the kernel either. So ... I am back to why I can't get a newer kernel running on the 8600??? Thanks! kevin P.S.: newer powermacs have a line in cpuinfo, like "PowerMac 7,2". Does this uniquely identify a particular model? On 11/11/10, kevin diggs <diggskevi...@gmail.com> wrote: > Ben, > > Thanks for taking the time to reply. I tried removing some memory that > I "suspect" might be "less than ideal". The result was the same. So I > don't think the problem is memory related. Also the latest firefox > build using gcc 4.3.5 I tried was with CFLAGS="-O0 -mcpu=powerpc". > This should chew up less memory than a gcc 3.4.6 build with "-O2 > -mcpu=750 -mmultiple", right? > > I'm gonna switch to the GigE and try a 2.6.36 with the 8600 config and > a firefox build using 4.3.5. The GigE has an hd5500 HDTV card in it! > > Thanks again for taking the time to try to help! > > kevin > > P.S.: I have discovered that one should not build firefox with > -mpowerpc-gpopt for a 750GX cauz it ain't not got no hardware fsqrt! > Off the top of your head would you know which of the ppc32 processors > has fsqrt? Is it only the 604? > > On Mon, Nov 8, 2010 at 4:31 PM, Benjamin Herrenschmidt > <b...@kernel.crashing.org> wrote: >> On Mon, 2010-11-08 at 10:43 -0600, kevin diggs wrote: >>> >>> Sorry for the noise but I am having trouble getting the latest kernel >>> built for a PowerMac8600 with a 750GX processor card. If this is not >>> an appropriate topic for the list please tell me (and hopefully point >>> me in the correct direction). >>> >>> I have narrowed the problem down to the compiler. YDL 4.0 is installed >>> on the machine. The stock compiler is 3.3.3. That version can NOT >>> build past 2.6.28. I built 3.4.6, (the latest 3 series I could find). >>> It can NOT build later kernel versions either. It can build Firefox >>> 2.0.0.15pre, including powerpc thin lock support. Running it now. >>> >>> I then tried 4.3.5. This will build the kernel. But the resulting >>> kernel will NOT run. A firefox built with 4.3.5 also will not run. Or >>> if it runs it crashes often (http://abcnews.com). >>> >>> What really puzzles me is I used the same basic compiler boot >>> strapping (3.3.3 to build 3.4.6, 3.4.6 to build 4.3.5) on a GiGE. That >>> machine is now running 2.6.36. >>> >>> The CFLAGS used were: "-O2 -mcpu=7450 -mmultiple -mstring" for the >>> GiGE (dual 7455s). Substitute 750 for the 8600. >>> >>> Any suggestions would be appreciated. >> >> This is odd... I wonder if your 8600 is having some memory problems ? >> >> Have you tried using the kernel/firefox built with 4.3.5 on the GigE and >> booting them on the 8600 ? >> >> 3.x are ancient but I would expect 4.3.x to work just fine >> >> Cheers, >> Ben. >> >> >> > _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev