* Jason A. Donenfeld <ja...@zx2c4.com> wrote: > [...] Recently I've been tracking down a problem in which irq_fpu_usable() > returns false, yet a stack trace shows the first function is the syscall > entry > point. [...]
Is this 'problem' a performance problem (code not being able to use the FPU occasionally and hence sporadically performing poorly), or some sort of actual stability/correctness problem? Also, what CPU does the test system have, Intel or AMD? The FPU behavior can be very different in the two cases. Third, could you post such a problematic stack trace? Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/