[Qemu-devel] [Bug 1011142] Re: Arm emulation do a crash

[BRULE Herman]

Then the correct gdb command provide:
#0  tcg_qemu_tb_exec (cpustate=<optimized out>, tb_ptr=0x0) at 
/var/tmp-disk/portage/app-emulation/qemu-kvm-1.0.1-r1/work/qemu-kvm-1.0.1/tci.c:444
#1  0x00007f6ced51393d in cpu_arm_exec (env=0x7f6cee66c3d0) at 
/var/tmp-disk/portage/app-emulation/qemu-kvm-1.0.1-r1/work/qemu-kvm-1.0.1/cpu-exec.c:566
#2  0x00007f6ced51515b in tcg_cpu_exec (env=0x7f6cee66c3d0) at 
/var/tmp-disk/portage/app-emulation/qemu-kvm-1.0.1-r1/work/qemu-kvm-1.0.1/cpus.c:1007
#3  tcg_exec_all () at 
/var/tmp-disk/portage/app-emulation/qemu-kvm-1.0.1-r1/work/qemu-kvm-1.0.1/cpus.c:1039
#4  qemu_tcg_cpu_thread_fn (arg=<optimized out>) at 
/var/tmp-disk/portage/app-emulation/qemu-kvm-1.0.1-r1/work/qemu-kvm-1.0.1/cpus.c:774
#5  0x00007f6cebd36d0c in start_thread (arg=0x7f6ce64b0700) at 
pthread_create.c:301
#6  0x00007f6ceb09fbed in clone () at 
../sysdeps/unix/sysv/linux/x86_64/clone.S:115

I have try multiple, kernel/OS, mainly provided by official website of 
paspberry pi. Provided here:
http://www.raspberrypi.org/downloads
But I have try too official gentoo kernel for arm, custom build from a 
website... In all case, the rest of world can run it (lot of do that's to test 
the OS before setup it into raspberry pi), and in my case, no.
The kernel seam work, and found/mount/boot the root partition.
Can you fix qemu to emulate correctly the raspberry pi platform, because it's 
very popular hardware.

I can test some patch or other if you want. If it's just question of
kernel, I will change it.

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https://bugs.launchpad.net/bugs/1011142

Title:
  Arm emulation do a crash

Status in QEMU:
  New

Bug description:
  Hello, I have try multiple image for the raspberry pi, with this cli:
  /usr/bin/qemu-system-arm -kernel kernel-rasptoo -M versatilepb -cpu arm1176 
-hda hdd.img -m 256 -append "root=/dev/sda2 loglevel=7 debug" -serial stdio 
-no-kvm
  I don't know why, with kvm it say:
  KVM not supported for this target
  No accelerator found!

  I can't debug it with gdb, it crash after the kernel boot (the qemu 
application crash).
  I'm under gentoo:
  [ebuild   R   ~] app-emulation/qemu-kvm-1.0.1-r1  USE="aio alsa curl ncurses 
opengl sdl threads vhost-net -bluetooth -brltty -debug -fdt -pulseaudio 
-qemu-ifup (-rbd) -sasl -smartcard -spice -static -test -tls -usbredir -vde 
-xattr -xen" QEMU_SOFTMMU_TARGETS="arm x86_64 -cris -i386 -m68k -microblaze 
-mips -mips64 -mips64el -mipsel -ppc -ppc64 -ppcemb -sh4 -sh4eb -sparc 
-sparc64" QEMU_USER_TARGETS="arm -alpha -armeb -cris -i386 -m68k -microblaze 
-mips -mipsel -ppc -ppc64 -ppc64abi32 -sh4 -sh4eb -sparc -sparc32plus -sparc64 
-x86_64" 0 kB

  Thanks to help me.

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