[Qemu-devel] [Bug 1657538] Re: qemu 2.7.x 2.8 softmmu dont work on BE machine

[Thomas Huth]

I can not reproduce this issue. QEMU 2.8 works fine here on a POWER8 big
endian host (running RHEL7). Can you still run older versions of QEMU
that used to work for you in the past, to check whether it is QEMU or
whether it is Ubuntu 16.10 that is causing the trouble here? Could you
please also post the full output of the "configure" run on your system?

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https://bugs.launchpad.net/bugs/1657538

Title:
  qemu 2.7.x 2.8 softmmu dont work on BE machine

Status in QEMU:
  New

Bug description:
  Build on Be machine qemu 2.7.1 and 2.8 in pure softmmu (tgc) dont work on big 
endian hardware .
  tested with ppc-softmmu,i386-softmmu,arm-softmmu same result:

  with :
   ./qemu-system-i386 
  Gtk-Message: Failed to load module "overlay-scrollbar"
  qemu-system-i386: Trying to execute code outside RAM or ROM at 0x000a0000
  This usually means one of the following happened:

  (1) You told QEMU to execute a kernel for the wrong machine type, and it 
crashed on startup (eg trying to run a raspberry pi kernel on a versatilepb 
QEMU machine)
  (2) You didn't give QEMU a kernel or BIOS filename at all, and QEMU executed 
a ROM full of no-op instructions until it fell off the end
  (3) Your guest kernel has a bug and crashed by jumping off into nowhere

  This is almost always one of the first two, so check your command line and 
that you are using the right type of kernel for this machine.
  If you think option (3) is likely then you can try debugging your guest with 
the -d debug options; in particular -d guest_errors will cause the log to 
include a dump of the guest register state at this point.

  Execution cannot continue; stopping here.

  
  I try to add the -L option with ../pc-bios/bios.bin 
  and have the same result.

  note the ppc-softmmu and ppc64-softmmu work in kvm mode only emulated
  mode have issue.

  
  tested on my hardware a  Qriq P5040 and G5 4x970MP with Ubuntu Mate 16.10 
  thanks
  Luigi

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