Bug fixed showed by https://github.com/unicorn-engine/unicorn/pull/609 and the test case shows no problem on the most recent release.
** Changed in: qemu Status: New => Fix Released -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1603734 Title: Hang in fsqrt Status in QEMU: Fix Released Bug description: At least qemu-i368 and qemu-x86_64 hang in floatx80_sqrt in versions 2.6.0 and git (2.6.50) for some input values, likely due to an infinite loop at fpu/softfloat.c:6569. Steps to reproduce: 1) Compile attached code: gcc -o test test.c -lm 2) `qemu-i368 test` and `qemu-x86_64 test` will hang at 100% cpu To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1603734/+subscriptions