freebsd-skq

History

kib 120b1857f9 Clear the kernel grab of the FPU state on fork. The pcb_save pointer

is already correctly reset to the FPU user save area, only PCB_KERNFPU
flag might leak from old thread state into the new state.

For creation of the user-mode thread, the change is nop since
corresponding syscall code does not use FPU.  On the other hand,
creation of a kernel thread forks from a thread selected arbitrary
from proc0, which might use FPU.

Reported and tested by:	Chris Torek <torek@torek.net>
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week

2014-03-29 11:56:33 +00:00

acpica

Consistently use round_page(x) rather than roundup(x, PAGE_SIZE). There is

2013-02-15 22:43:08 +00:00

amd64

Clear the kernel grab of the FPU state on fork. The pcb_save pointer

2014-03-29 11:56:33 +00:00

conf

Rather than require a makeoptions DEBUG to get debug correct,

2014-03-25 22:08:31 +00:00

ia32

x86: Allow users to change PSL_RF via ptrace(PT_SETREGS...)