Philippe,
ipipe-2.0-15 does not apply to 2.6.26.5 and later. Hunk below might be
non-trivial to resolve for normal users, so please merge soon
(specifically into Xenomai):
Index: linux-2.6.26-xeno_64/arch/x86/kernel/traps_64.c
===================================================================
--- linux-2.6.26-xeno_64.orig/arch/x86/kernel/traps_64.c
+++ linux-2.6.26-xeno_64/arch/x86/kernel/traps_64.c
@@ -1140,17 +1148,20 @@ asmlinkage void math_state_restore(void)
local_irq_disable();
}
+ local_irq_save_hw_cond(flags);
clts(); /* Allow maths ops (or we recurse) */
/*
* Paranoid restore. send a SIGSEGV if we fail to restore the state.
*/
if (unlikely(restore_fpu_checking(&me->thread.xstate->fxsave))) {
stts();
+ local_irq_restore_hw_cond(flags);
force_sig(SIGSEGV, me);
return;
}
task_thread_info(me)->status |= TS_USEDFPU;
me->fpu_counter++;
+ local_irq_restore_hw_cond(flags);
}
EXPORT_SYMBOL_GPL(math_state_restore);
Thanks,
Jan
--
Siemens AG, Corporate Technology, CT SE 2
Corporate Competence Center Embedded Linux
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