When trying to flash a machine via the update_flash command, I received the
following error:
Restarting system.
FLASH: kernel bug...flash list header addr above 4GB
The code in question has a comment that the flash list should be in
the kernel data and therefore under 4GB:
/* NOTE: the "first" block list is a global var with no data
* blocks in the kernel data segment. We do this because
* we want to ensure this block_list addr is under 4GB.
*/
Unfortunately the Kconfig option is marked tristate which means the variable
may not be in the kernel data and could be above 4GB.
Change RTAS_FLASH to a bool. If we are worried about kernel footprint we
could move the problem variables out of the module and export them.
Signed-off-by: Anton Blanchard <an...@samba.org>
---
Index: linux-2.6/arch/powerpc/platforms/Kconfig
===================================================================
--- linux-2.6.orig/arch/powerpc/platforms/Kconfig 2010-06-09
15:44:53.635955260 +1000
+++ linux-2.6/arch/powerpc/platforms/Kconfig 2010-06-09 15:45:00.503453428
+1000
@@ -97,7 +97,7 @@ config RTAS_PROC
default y
config RTAS_FLASH
- tristate "Firmware flash interface"
+ bool "Firmware flash interface"
depends on PPC64 && RTAS_PROC
config MMIO_NVRAM
Index: linux-2.6/arch/powerpc/configs/ppc64_defconfig
===================================================================
--- linux-2.6.orig/arch/powerpc/configs/ppc64_defconfig 2010-06-09
15:46:25.394704486 +1000
+++ linux-2.6/arch/powerpc/configs/ppc64_defconfig 2010-06-09
15:46:37.083454943 +1000
@@ -264,7 +264,7 @@ CONFIG_U3_DART=y
CONFIG_PPC_RTAS=y
CONFIG_RTAS_ERROR_LOGGING=y
CONFIG_RTAS_PROC=y
-CONFIG_RTAS_FLASH=m
+CONFIG_RTAS_FLASH=y
CONFIG_PPC_PMI=m
CONFIG_MMIO_NVRAM=y
CONFIG_MPIC_U3_HT_IRQS=y
Index: linux-2.6/arch/powerpc/configs/pseries_defconfig
===================================================================
--- linux-2.6.orig/arch/powerpc/configs/pseries_defconfig 2010-06-09
15:46:25.364703092 +1000
+++ linux-2.6/arch/powerpc/configs/pseries_defconfig 2010-06-09
15:46:31.723454300 +1000
@@ -213,7 +213,7 @@ CONFIG_PPC_I8259=y
CONFIG_PPC_RTAS=y
CONFIG_RTAS_ERROR_LOGGING=y
CONFIG_RTAS_PROC=y
-CONFIG_RTAS_FLASH=m
+CONFIG_RTAS_FLASH=y
# CONFIG_MMIO_NVRAM is not set
CONFIG_IBMVIO=y
CONFIG_IBMEBUS=y
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