Ubuntu
qemu-linaro package

  1. Bug #532733
  2. Comment #54

Comment 54 for bug 532733

Revision history for this message
Ricardo Salveti (rsalveti) wrote :

I'm now implementing the support for creating a rootstock rootfs without requiring root, and I also got stuck at a segmentation fault, just after executing the debootstrap' second stage.

I'm running the qemu-system-arm from qemu-kvm-extras 0.12.4+noroms-0ubuntu4, at maverick.

My qemu command line:
qemu-system-arm -M versatilepb -cpu cortex-a8 -kernel qemu-vmlinuz -no-reboot -nographic -drive file=qemu-armel-rootstock.img,aio=native,cache=none -m 256 -append 'console=ttyAMA0,115200n8 root=/dev/sda rw mem=256M init=/bin/installer'
Uncompressing Linux................................................................................................................................................................................................. done, booting the kernel.
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
...
...
I: Configuring initramfs-tools...
I: Base system installed successfully.
I: Starting basic services in VM
[ 912.758337] udev: starting version 151
Adding `local diversion of /usr/sbin/invoke-rc.d to /usr/sbin/invoke-rc.d.rootstock'
[ 913.623614] eth0: link up
Internet Systems Consortium DHCP Client V3.1.3
Copyright 2004-2009 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

Listening on LPF/eth0/52:54:00:12:34:56
Sending on LPF/eth0/52:54:00:12:34:56
Sending on Socket/fallback
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 7
DHCPOFFER of 10.0.2.15 from 10.0.2.2
DHCPREQUEST of 10.0.2.15 on eth0 to 255.255.255.255 port 67
DHCPACK of 10.0.2.15 from 10.0.2.2
bound to 10.0.2.15 -- renewal in 34170 seconds.
Generating locales...
  en_GB.UTF-8... done
Segmentation fault (core dumped)

[436282.681876] qemu-system-arm[4435]: segfault at ffffffffcd7797cc ip ffffffffcd7797cc sp 00007fffa42e3070 error 14

For testing and debugging purposes, I'm also uploading the rootstock image to my server (if you want to test, wait at least 2 hours and make sure to check the md5).

Image:
 * rootfs: http://rsalveti.net/pub/ubuntu/rootstock/qemu-armel-rootstock.img (md5 356b497edddec08ff19f2ef545b4e207)
 * kernel: http://ports.ubuntu.com/ubuntu-ports/dists/lucid/main/installer-armel/current/images/versatile/netboot/vmlinuz

Going to get some sleep now but tomorrow will try qemu with gdb and also with the current upstream version.