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| author | David Daney <david.daney@cavium.com> | 2011-08-20 08:44:00 -0700 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2011-09-21 17:53:56 +0200 |
| commit | 465aaed0030b23d905f3eca5e65481773bea9ea1 (patch) | |
| tree | 9564637609ba91b763fa38890739d9fbc38e64bb /arch | |
| parent | bd7100099a46b59f433dd15ad60adbb4d4f3d625 (diff) | |
| download | linux-3.10-465aaed0030b23d905f3eca5e65481773bea9ea1.tar.gz linux-3.10-465aaed0030b23d905f3eca5e65481773bea9ea1.tar.bz2 linux-3.10-465aaed0030b23d905f3eca5e65481773bea9ea1.zip | |
MIPS: Octeon: Select CONFIG_HOLES_IN_ZONE
Current Octeon systems do in fact have holes in their memory zones.
We need to select HOLES_IN_ZONE. If we do not, some memory
configurations will result in crashes at boot time like this:
.
.
.
CPU 6 Unable to handle kernel paging request at virtual address 0000000000700000, epc == ffffffff8118fe00, ra == ffffffff8118fe9c
Oops[#1]:
Cpu 6
.
.
.
...
Call Trace:
[<ffffffff8118fe00>] setup_per_zone_wmarks+0x1b0/0x338
[<ffffffff815cd738>] init_per_zone_wmark_min+0x64/0xd0
[<ffffffff81100438>] do_one_initcall+0x38/0x160
.
.
.
Reported-by: Jason Kwon <jason.kwon@ericsson.com>
Signed-off-by: David Daney <david.daney@cavium.com>
To: linux-mips@linux-mips.org
Cc: Jason Kwon <jason.kwon@ericsson.com>
Patchwork: https://patchwork.linux-mips.org/patch/2724/
Tested-by: Guenter Roeck<guenter.roeck@ericsson.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/Kconfig | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index d300c2bf836..b122adc8bdb 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -723,6 +723,7 @@ config CAVIUM_OCTEON_SIMULATOR select SYS_SUPPORTS_HIGHMEM select SYS_SUPPORTS_HOTPLUG_CPU select SYS_HAS_CPU_CAVIUM_OCTEON + select HOLES_IN_ZONE help The Octeon simulator is software performance model of the Cavium Octeon Processor. It supports simulating Octeon processors on x86 @@ -745,6 +746,7 @@ config CAVIUM_OCTEON_REFERENCE_BOARD select ZONE_DMA32 select USB_ARCH_HAS_OHCI select USB_ARCH_HAS_EHCI + select HOLES_IN_ZONE help This option supports all of the Octeon reference boards from Cavium Networks. It builds a kernel that dynamically determines the Octeon @@ -974,6 +976,9 @@ config ISA_DMA_API config GENERIC_GPIO bool +config HOLES_IN_ZONE + bool + # # Endianess selection. Sufficiently obscure so many users don't know what to # answer,so we try hard to limit the available choices. Also the use of a |