(friendly ping) On 05/02/2017 12:20 PM, Martin Kelly wrote:
Currently, the qemu CPUs for are specified as generic, but the built artifacts are not. For example, we build x86-64 artifacts targeting core2duo but run them in qemu with generic qemu/kvm CPUs. This causes some packages that take advantage of the host architecture to crash because they try to use CPU features not advertised by qemu. As an example, Qt uses ssse3. When artifacts linked against Qt and built targeting core2duo attempt to run on a generic qemu/kvm CPU, we get the following crash:Incompatible processor. This Qt build requires the following features: ssse3 We could fix this by making packages like Qt not take advantage of CPU features. However, we will probably keep facing similar issues over time, so it's better to resolve them in a more enduring way. Fix this by making the qemu -cpu arguments match the built artifacts. Signed-off-by: Martin Kelly <mke...@xevo.com> --- I sent this to p...@yoctoproject.org but it should have gone to OE-core, so I'm resending it now to restart the discussion on the right mailing list. There were some comments about it in a previous mail thread on the poky mailing list: https://lists.yoctoproject.org/pipermail/poky/2017-April/010956.html meta/conf/machine/include/qemuboot-x86.inc | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/meta/conf/machine/include/qemuboot-x86.inc b/meta/conf/machine/include/qemuboot-x86.inc index 06ac983..acd03a1 100644 --- a/meta/conf/machine/include/qemuboot-x86.inc +++ b/meta/conf/machine/include/qemuboot-x86.inc @@ -1,12 +1,12 @@ # For runqemu IMAGE_CLASSES += "qemuboot" QB_SYSTEM_NAME_x86 = "qemu-system-i386" -QB_CPU_x86 = "-cpu qemu32" -QB_CPU_KVM_x86 = "-cpu kvm32" +QB_CPU_x86 = "-cpu pentium2" +QB_CPU_KVM_x86 = "-cpu pentium2" QB_SYSTEM_NAME_x86-64 = "qemu-system-x86_64" QB_CPU_x86-64 = "-cpu core2duo" -QB_CPU_KVM_x86-64 = "-cpu kvm64" +QB_CPU_KVM_x86-64 = "-cpu core2duo" QB_AUDIO_DRV = "alsa" QB_AUDIO_OPT = "-soundhw ac97,es1370"
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