The ia64_mca_cpe_int_handler() and the ia64_mca_cmc_int_handler() are
not safe against nested interrupts. The interrupts are enabled too early.
The interrupts should remain blocked while we are inside the lock-
protected region. (See ..._history_lock.)

The interrupts will be enabled in ia64_mca_log_sal_error_record()
unless it is called from the MCA/INIT handlers.

Please have a look at this patch.

Thanks,

Zoltan Menyhart

Signed-off-by: Zoltan Menyhart, <Zoltan.Menyhart@bull.net>