qemu 2.7.x 2.8 softmmu dont work on BE machine 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 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? Something else to try: Could you please check whether you get any output when you run "qemu-system-ppc -nographic" on your system? So we can make sure that it is not related to GTK or something similar... Hi Thomas, here the configure .. i made a clean one just with the target for have fastest build will report soon the result with the nographic just the time of build src/qemu$ ./configure --target-list=i386-softmmu,ppc-softmmu,ppc64-softmmu Install prefix /usr/local BIOS directory /usr/local/share/qemu binary directory /usr/local/bin library directory /usr/local/lib module directory /usr/local/lib/qemu libexec directory /usr/local/libexec include directory /usr/local/include config directory /usr/local/etc local state directory /usr/local/var Manual directory /usr/local/share/man ELF interp prefix /usr/gnemul/qemu-%M Source path /home/amigaone/src/qemu C compiler cc Host C compiler cc C++ compiler c++ Objective-C compiler clang ARFLAGS rv CFLAGS -O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -g QEMU_CFLAGS -I/usr/include/pixman-1 -Werror -DHAS_LIBSSH2_SFTP_FSYNC -pthread -I/usr/include/glib-2.0 -I/usr/lib/powerpc-linux-gnu/glib-2.0/include -D_GNU_SOURCE -I/usr/include/ncursesw -m32 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Wstrict-prototypes -Wredundant-decls -Wall -Wundef -Wwrite-strings -Wmissing-prototypes -fno-strict-aliasing -fno-common -fwrapv -Wendif-labels -Wno-shift-negative-value -Wmissing-include-dirs -Wempty-body -Wnested-externs -Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers -Wold-style-declaration -Wold-style-definition -Wtype-limits -fstack-protector-strong -I/usr/local/include/libpng12 -I/usr/local/include/cacard -I/usr/include/nss -I/usr/include/nspr -I/usr/include/libusb-1.0 LDFLAGS -Wl,--warn-common -m32 -g make make install install python python -B smbd /usr/sbin/smbd module support no host CPU ppc host big endian yes target list i386-softmmu ppc-softmmu ppc64-softmmu tcg debug enabled no gprof enabled no sparse enabled no strip binaries yes profiler no static build no pixman system SDL support yes (1.2.15) GTK support yes (2.24.30) GTK GL support no VTE support no TLS priority NORMAL GNUTLS support no GNUTLS rnd no libgcrypt yes libgcrypt kdf yes nettle no nettle kdf no libtasn1 no curses support yes virgl support yes curl support yes mingw32 support no Audio drivers oss Block whitelist (rw) Block whitelist (ro) VirtFS support yes VNC support yes VNC SASL support yes VNC JPEG support yes VNC PNG support yes xen support no brlapi support yes bluez support yes Documentation yes PIE no vde support no netmap support no Linux AIO support yes ATTR/XATTR support yes Install blobs yes KVM support yes COLO support yes RDMA support yes TCG interpreter no fdt support yes preadv support yes fdatasync yes madvise yes posix_madvise yes libcap-ng support yes vhost-net support yes vhost-scsi support yes vhost-vsock support yes Trace backends log spice support no rbd support yes xfsctl support yes smartcard support yes libusb yes usb net redir yes OpenGL support yes OpenGL dmabufs yes libiscsi support yes libnfs support yes build guest agent yes QGA VSS support no QGA w32 disk info no QGA MSI support no seccomp support yes coroutine backend ucontext coroutine pool yes debug stack usage no GlusterFS support no Archipelago support no gcov gcov gcov enabled no TPM support yes libssh2 support yes TPM passthrough no QOM debugging yes lzo support yes snappy support yes bzip2 support yes NUMA host support yes tcmalloc support no jemalloc support no avx2 optimization no replication support yes i386-softmmu: ./qemu-system-i386 -nographic qemu-system-i386: Trying to execute code outside RAM or ROM at 0x000a0000 This usually means one of the following happened: and so and so ./qemu-system-ppc -nographic nothing happen ... no exit on console . on 2.6.2 i have: qemu-system-ppc -nographic >> ============================================================= >> OpenBIOS 1.1 [Apr 18 2016 08:20] >> Configuration device id QEMU version 1 machine id 2 >> CPUs: 1 >> Memory: 128M >> UUID: 00000000-0000-0000-0000-000000000000 >> CPU type PowerPC,750 milliseconds isn't unique. Welcome to OpenBIOS v1.1 built on Apr 18 2016 08:20 Trying hd:,\\:tbxi... Trying hd:,\ppc\bootinfo.txt... Trying hd:,%BOOT... note the 2.6.2 work, before on 2.6.1 i had the same issue of 2.7 and 2.8 I can reproduce the same problem on 2.7.0 on a PowerPC G5 for the x86, x86_64 and ppc softmmu targets (minus the Gtk problem, since I use this ported to Cocoa). As with Luigi this seems to be a regression from 2.6.2. There is no change with -nographic. See also: https://bugzilla.redhat.com/show_bug.cgi?id=1332449 The commenter indicates several BE issues were detected. I have not yet heard from him regarding his patches or whether they were upstreamed here. Oh my gosh the great Cameron Kaiser :) Looking through old bug tickets ... can you still reproduce the issue with the latest version of QEMU (v4.2) and a more recent Linux distribution? [Expired for QEMU because there has been no activity for 60 days.]