Re: c3700 boot failure (protection ID trap)

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On 28-Jan-12, at 5:41 PM, Bjorn Helgaas wrote:

On Sat, Jan 28, 2012 at 9:56 AM, Rolf Eike Beer <eike-kernel@sf- tec.de> wrote:
Bjorn Helgaas wrote:
I'm trying to test some PCI changes on a c3700, but recent kernels
don't seem to work at all. 74ea15d909b311 (current upstream) and v3.2
both fail as shown below.  I'm using c3000_defconfig (attached for
74ea15d909b311).  Should I expect this to work?

I don't know about 3.3x, but my C3600 runs using 3.2.1. Which binutils did you use for building? IIRC there is a bunch of bugs in different versions.

This is a Debian 5.0 box:

c3700:~# gcc -v
Using built-in specs.
Target: hppa-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian
4.3.2-1.1' --with-bugurl=file:///usr/share/doc/gcc-4.3/README.Bugs
--enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr
--enable-shared --with-system-zlib --libexecdir=/usr/lib
--without-included-gettext --enable-threads=posix --enable-nls
--with-gxx-include-dir=/usr/include/c++/4.3 --program-suffix=-4.3
--enable-clocale=gnu --enable-libstdcxx-debug --enable-objc-gc
--enable-mpfr --disable-libssp --enable-checking=release
--build=hppa-linux-gnu --host=hppa-linux-gnu --target=hppa-linux-gnu
Thread model: posix
gcc version 4.3.2 (Debian 4.3.2-1.1)
c3700:~# ld -v
GNU ld (GNU Binutils for Debian) 2.18.0.20080103
c3700:~# as -v
GNU assembler version 2.18.0 (hppa-linux-gnu) using BFD version (GNU
Binutils for Debian) 2.18.0.20080103


I would say you should update both binutils and GCC. The binutils fixes are less critical but they do fix the unwind support. There are many GCC fixes since 4.3.2. The delay slot handling in the 4.3 branch is somewhat broken.

You probably won't be able to build either binutils or GCC from Debian
unstable sources due to the dependency requirements. I would suggest using the current binutils and GCC sources directly. GCC 4.6.2 is pretty solid as
far as I can tell.

Dave
--
John David Anglin	dave.anglin@xxxxxxxx



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