3528 2012-12-04 05:50:27 +0000 [qemuarm] runqemu qemuarm throwing few errors on console 2013-01-17 15:31:26 +0000 1 1 7 Build System, Metadata & Runtime OE-Core core 1.4 x86 arm RESOLVED FIXED https://bugzilla.yoctoproject.org/show_bug.cgi?id=1683 Medium normal 1.4 1 veerabrahmamvr andrei.adrianx.dinu cristian.iorga meta.mr.watcher meta.watcher richard.purdie sgw yi.zhao --- --- --- oldest_to_newest 27935 0 veerabrahmamvr 2012-12-04 05:50:27 +0000 build : http://autobuilder.yoctoproject.org/pub/nightly/20121128-1/ vulinuz & initrd path : http://autobuilder.yoctoproject.org/pub/nightly/20121128-1/machines/qemu/qemuarm/ Observation : runqemu qemuarm zImage-qemuarm.bin core-image-sato-qemuarm.ext3 Continuing with the following parameters: KERNEL: [/opt/veera/releases/nov21/zImage-qemuarm.bin] ROOTFS: [/opt/veera/releases/nov21/core-image-sato-qemuarm.ext3] FSTYPE: [ext3] Setting up tap interface under sudo Acquiring lockfile for tap0... WARNING: distccd not present, no distcc support loaded. Running qemu-system-arm... /opt/poky/1.3+snapshot/sysroots/i686-pokysdk-linux/usr/bin/qemu-system-arm -kernel /opt/veera/releases/nov21/zImage-qemuarm.bin -net nic,vlan=0 -net tap,vlan=0,ifname=tap0,script=no,downscript=no -M versatilepb -hda /opt/veera/releases/nov21/core-image-sato-qemuarm.ext3 -no-reboot -show-cursor -usb -usbdevice wacom-tablet -no-reboot -m 128 --append "root=/dev/sda rw console=ttyAMA0,115200 console=tty ip=192.168.7.2::192.168.7.1:255.255.255.0 mem=128M highres=off " oss: Could not initialize DAC oss: Failed to open `/dev/dsp' oss: Reason: No such file or directory oss: Could not initialize DAC oss: Failed to open `/dev/dsp' oss: Reason: No such file or directory audio: Failed to create voice `lm4549.out' 27978 1 veerabrahmamvr 2012-12-05 06:26:56 +0000 This issue we observed on Host side . Not in the Qemu target dmesg. when ever we run command : runqemu qemuarm zImage-qemuarm.bin core-image-sato-qemuarm.ext3 it is displaying errors on the console. please check error messages . 28122 2 andrei.adrianx.dinu 2012-12-10 15:35:26 +0000 As i investigated the problem today, i found some interesting facts: 1. runqemu qemuarm *image* runs with "audio" option somehow activated and that is why the errors come up. If you do the same thing in a qemux86 image, the same errors appear. Something that i do not figure out is why the qemuarm run has that option, but the qemux86 not. 2. "alsa" is taken as default in runqemu script for QEMU_AUDIO_DRV which is not a good option, because it only supports one client. That means, if you start a music application and you want to start a runqemu, it will output that the device is busy. A solution to this is adding pulseaudio instead of alsa in the backend of runqemu. 28178 3 andrei.adrianx.dinu 2012-12-12 11:27:21 +0000 I ran the qemu command without using the runqemu script like : sudo /home/adinu/work/poky4/poky/build/tmp/sysroots/x86_64-linux/usr/bin/qemu-system-arm -kernel /home/adinu/work/poky4/poky/build/tmp/deploy/images/zImage-qemuarm.bin -net nic,vlan=0 -net tap,vlan=0,ifname=tap0,script=no,downscript=no -M versatilepb -hda /home/adinu/work/poky4/poky/build/tmp/deploy/images/core-image-sato-qemuarm.ext3 -no-reboot -show-cursor -usb -usbdevice wacom-tablet -no-reboot -m 128 --append "root=/dev/sda rw console=ttyAMA0,115200 console=tty ip=192.168.7.2::192.168.7.1:255.255.255.0 mem=128M highres=off " the errors appeared again. When running for a x86 image, the errors appear only if the argument -soundhw is set, which is ok. I sent a mail to qemu-devel to find out if this is a known issue and waiting for their reply. It's clearly not from the runqemu script. 28901 4 richard.purdie 2013-01-17 15:04:15 +0000 Drop incorrect dependencies