Hi all, in 3.14-rc1, my mips64 qemu test fails. The image boots and then hangs. Bisect points to commit 597ce1723 (MIPS: Support for 64-bit FP with O32 binaries). Reverting this commit fixes the problem. Disabling MIPS_O32_FP64_SUPPORT in my test image does _not_ solve the problem. The qemu version does not seem to make a difference; I tested with qemu 1.6.0 and 1.7.0. Console log output is available in http://server.roeck-us.net:8010/builders/qemu-mips64-master/builds/34/steps/buildcommand/logs/stdio When the problem is seen, the emulation hangs as can be seen in the log, and the qemu process consumes 100% CPU until it is killed. qemu command line is qemu-system-mips64 -kernel vmlinux -M malta -hda core-image-minimal-qemumips64.ext3 \ -vga cirrus -usb -usbdevice wacom-tablet -no-reboot -m 128 --append "root=/dev/hda \ rw mem=128M console=ttyS0 console=tty" -nographic The same configuration works fine with earlier kernels. I'll be happy to provide the detailed configuration as well as the root file system for testing if needed. Obviously I have no idea if this is a problem with the patch or with qemu. If there is anything I can do to help tracking down the problem further, please let me know. Thanks, Guenter
