[Qemu-devel] [Bug 1603734] Re: Hang in fsqrt

2016-12-14 Thread Ziyue Yang
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 Q

[Qemu-devel] [Bug 1603734] Re: Hang in fsqrt

2016-08-12 Thread Peter Maydell
Thanks for this bug report. The problem here is that QEMU is not correctly handling the obsolete "unnormal" 80-bit floating point format. The Intel architecture reference says that this should be handled by raising the invalid-input exception and returning the default NaN. See also the discussion