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2 Commits

Author SHA1 Message Date
Paul Mundt
9bbafce2ee sh: Fix occasional FPU register corruption under preempt. 
Presently with preempt enabled there's the possibility to be preempted
after the TIF_USEDFPU test and the register save, leading to bogus
state post-__switch_to(). Use an explicit preempt_disable()/enable()
pair around unlazy_fpu()/clear_fpu() to avoid this. Follows the x86
change.

Reported-by: Takuo Koguchi <takuo.koguchi.sw@hitachi.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
 2008-03-26 19:02:47 +09:00
Paul Mundt
e7e0a4b54a sh: Share the ELF dump_task interfaces. 
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
 2008-01-28 13:18:49 +09:00