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(parent: 1d19f17) | patch
x86: save/restore eflags in context switch
authorLinus Torvalds <torvalds@g5.osdl.org>
Mon, 18 Sep 2006 23:20:40 +0000 (16:20 -0700)
committerLinus Torvalds <torvalds@g5.osdl.org>
Mon, 18 Sep 2006 23:20:40 +0000 (16:20 -0700)
commit47a5c6fa0e204a2b63309c648bb2fde36836c826
tree688b6c12c72fed720dc4a047f310cd292e88a6f1tree | snapshot
parent1d19f176a2884d31c4fe2c7018349ff884a819b1commit | diff
x86: save/restore eflags in context switch

(And reset it on new thread creation)

It turns out that eflags is important to save and restore not just
because of iopl, but due to the magic bits like the NT bit, which we
don't want leaking between different threads.

Tested-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
arch/i386/kernel/entry.S diff | blob | history
include/asm-i386/system.h diff | blob | history
John Crispins staging tree