Blackfin: make deferred hardware errors more exact

[cascardo/linux.git] / arch / blackfin / Kconfig.debug

diff --git a/arch/blackfin/Kconfig.debug b/arch/blackfin/Kconfig.debug
index 79e7e63..1fc4981 100644 (file)
--- a/arch/blackfin/Kconfig.debug
+++ b/arch/blackfin/Kconfig.debug
@@ -54,6 +54,19 @@ config DEBUG_HWERR
          hardware error interrupts and need to know where they are coming
          from.
 
+config EXACT_HWERR
+       bool "Try to make Hardware errors exact"
+       depends on DEBUG_HWERR
+       help
+         By default, the Blackfin hardware errors are not exact - the error
+          be reported multiple cycles after the error happens. This delay
+         can cause the wrong application, or even the kernel to receive a
+         signal to be killed. If you are getting HW errors in your system,
+         try turning this on to ensure they are at least comming from the
+         proper thread.
+
+         On production systems, it is safe (and a small optimization) to say N.
+
 config DEBUG_DOUBLEFAULT
        bool "Debug Double Faults"
        default n