Messages in this thread | | | Date | Fri, 18 Apr 2008 00:10:24 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH][RFC] Add default CPU topology information |
| |
On Mon, 31 Mar 2008 12:44:13 +0100 Ben Hutchings <bhutchings@solarflare.com> wrote:
> Not all architectures and configurations define CPU topology information. > This can result in an empty topology directory in sysfs, and requires > in-kernel users to protect all uses with #ifdef - see > <http://marc.info/?l=linux-netdev&m=120639033904472&w=2>. > > The documentation of CPU topology specifies what the defaults should be > if only partial information is available from the hardware. So we can > provide these defaults as a fallback. > > This patch: > > - Adds default definitions of the 4 topology macros to > include/asm-generic/topology.h. > - Changes include/asm-*/topology.h to include <asm-generic/topology.h> > unconditionally. > - Changes drivers/base/topology.c to use the topology macros unconditionally > and to cope with definitions that aren't lvalues. > - Updates documentation accordingly.
I get a huuuuuuuge crash early in boot on the t61p dual x86_64 laptop. Before netconsole has started and it has no serial port, so all I have is a partially-scrolled-off jpg, sorry.
I'll drop the patch.
http://userweb.kernel.org/~akpm/p4175278.jpg http://userweb.kernel.org/~akpm/config-t61p.txt http://userweb.kernel.org/~akpm/dmesg-t61p.txt
If I didn't have all that wrong crap on the stack we'd have a full trace here. I have CONFIG_FRAME_POINTER=y, but that doesn't seem to have helped.
| |