RE: [patch] ia64: fix potential NaT bit error for sys_pipe().

David Mosberger
2005-01-24T19:17:59Z

>>>>> On Thu, 20 Jan 2005 19:32:48 -0800, "Chen, Kenneth W" <kenneth.w.chen@intel.com> said:

Ken> We would rather not to change THREAD_FLAGS_TO_CLEAR definition.
Ken> mfh bit in child pt_regs is cleared right above where the
Ken> comment is. I think it is better as is so that child thread
Ken> fph partition stays invalidated.

Sorry, I was a bit in a rush when I typed that mail and made some
errors as a result. I think what you propose is reasonable, since
just clearing PSR.MFH will take care of avoiding needless
context-switching of f32-f127. However, I think it'd still be
worthwhile to update the comment in copy_thread() to reflect this
thinking (basically, the paragraph starting with "XXX" would have to
be updated).

--david