Forgot to cc kernelnewbies mailing list while replying.. On Fri, Dec 9, 2011 at 9:39 PM, rajaneesh acharya < rajaneeshacharya@indiatimes.com> wrote:

Hi

I created a kernel using the target as allyesconfig. The machine fails to bootup (just hangs with 100% cpu utilization) with message "Booting the kernel" If I use the config from a distro and create the kernel image, it boots fine..

Apart from the fact that allyesconfig will create a bulky kernel image and loads lots of drivers that are not needed, what could be other reasons why this would fail.. I have 8GB RAM and AMD Quad code..

For above testing, I used QEMU command as below

...

...

qemu-system-x86_64 -kernel /boot/vmlinuz-3.2.0 -initrd test.cpio.gz

Oh, you have an AMD cpu? There was a regression which prevented Linux from booting on some AMD cpus. And this has been fixed in Linux-3.2-rc5. Please try that version and see if the problem still persists. [The specific patch I am referring to is, "x86: Fix boot failures on older AMD CPU's" See https://lkml.org/lkml/2011/12/9/419] Regards, Srivatsa S. Bhat