[Buildroot] Buildroot 2011.02 images won't load on Qemu with qemu_arm_versatile_defconfig

[Dwi Sasongko Supriyadi]

On Tue, Apr 26, 2011 at 4:46 PM, Peter Korsgaard <jacmet at uclibc.org> wrote:

> >>>>> "Dwi" == Dwi Sasongko Supriyadi <ruckuus at gmail.com> writes:
>
>  Dwi> Hello All,
>  Dwi> I found issue when trying to load buildroot images on Qemu. Following
> is my
>  Dwi> configuration:
>
>  Dwi> 1. Buildroot configured with make qemu_arm_versatile_defconfig
>  Dwi> 2. Using uClibc toolchain
>  Dwi> 3. rootfs.cpio, initramfs of linux kernel
>
>  Dwi> Basically, I just did: make qemu_arm_versatile_defconfig; make then
> use the
>  Dwi> resulting images available under output/images
>
>  Dwi> I run qemu with following command:
>
>  Dwi> qemu-system-arm -M versatilepb -m 128M -kernel output/images/zImage
> -initrd
>  Dwi> output/images/rootfs.cpio.gz -append "root=/dev/ram rdinit=/bin/sh"
>
>  Dwi> Qemu launched but there is nothing shown.
>
> Odd, I've using the versatile config pretty often here.


I also use versatile_defconfig for kernel then using the zImage with Qemu,
and never try zImage result from buildroot. I also worked with older
version, i.e. 2.6.27


> I do configure
> it slightly differently, as I normally don't care about graphics output
> - So I use the serial output:
>
> qemu-system-arm -M versatilepb -kernel output/images/zImage -append
>   'console=ttyAMA0,115200 root=/dev/sda' -nographic -net nic -net user
>   -hda output/images/rootfs.ext2
>
> I've tweaked the versatile config a bit in git since the 2011.02
> release though (enabled getty on serial port).
>

Perhaps you could give the default versatile config in git a try before
> changing to initramfs?
>
>
I tried to use versatile config from git, but there is still the same
result. Qemu stopped after compressing Linux.

Please correct me if I am wrong, is following the versatile
config difference between 2011.02 and buildroot from git correct?

diff -Nru configs/qemu_arm_versatile_defconfig
../buildroot/configs/qemu_arm_versatile_defconfig
--- configs/qemu_arm_versatile_defconfig 2011-04-26 19:16:59.215058879 +0700
+++ ../buildroot/configs/qemu_arm_versatile_defconfig 2011-04-26
19:34:21.614809336 +0700
@@ -2,6 +2,10 @@
 BR2_arm=y
 BR2_arm926t=y

+# system
+BR2_TARGET_GENERIC_GETTY=y
+BR2_TARGET_GENERIC_GETTY_PORT="ttyAMA0"
+
 # filesystem
 BR2_TARGET_ROOTFS_EXT2=y
 # BR2_TARGET_ROOTFS_TAR is not set
@@ -9,7 +13,7 @@
 # Kernel
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="2.6.36"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="2.6.38.3"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
-BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/arm-versatile/linux-2.6.36.config"
+BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/arm-versatile/linux-2.6.38.config"
 BR2_LINUX_KERNEL_ZIMAGE=y

I also saw there are minor difference between both boards config and I did
try 2.6.38.config in 2.6.36 kernel but I found the same result.

I am a little bit puzzled but also surprised knowing that only older kernel
version can be used ... should this be known as Qemu issue?

Using 2.6.27.58 with CS toolchain or BR toolchain the image result can be
used flawlessly, but not with 2.6.36/37/38. I am worried also with the fact
that my qemu gets segfault when missing -m parameter. I am running Ubuntu
Lucid with Qemu version 0.12.3. Could you please confirm your Qemu version?

Thanks in advance,
DWI

-- 
Good software can't be measured by `wc -l software.c`
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