Strange MXCSR messages?

Matthew Dillon dillon at
Fri Dec 14 12:26:52 PST 2007

    Ok, it should now be fixed.  I removed the fnsave/fxsave instructions
    from libc_r entirely... fxsave can't be used there anyway because
    the FP state on the signal stack is not 16-byte aligned (it was causing
    an infinite loop, which is another issue but one I'm not going to worry
    about right now).

    Now the kernel is 100% responsible for saving and restoring the FP state.

    Now that its fixed, I also changed the kernel to SIGFPE a user
    program that messes up the MXCSR.

					Matthew Dillon 
					<dillon at>

More information about the Bugs mailing list