Hi Russell,
On 03/12/2014 10:54 AM, Russell King - ARM Linux wrote:
On Tue, Feb 18, 2014 at 02:15:33PM -0800, Laura Abbott wrote:
memblock is now fully integrated into the kernel and is the prefered
method for tracking memory. Rather than reinvent the wheel with
meminfo, migrate to using memblock directly instead of meminfo as
an intermediate.
Acked-by: Jason Cooper <jason@xxxxxxxxxxxxxx>
Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx>
Acked-by: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
Acked-by: Kukjin Kim <kgene.kim@xxxxxxxxxxx>
Tested-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
Tested-by: Leif Lindholm <leif.lindholm@xxxxxxxxxx>
Signed-off-by: Laura Abbott <lauraa@xxxxxxxxxxxxxx>
Laura,
This patch causes a bunch of platforms to no longer boot - imx6solo with
1GB of RAM boots, imx6q with 2GB of RAM doesn't. Versatile Express doesn't.
The early printk messages don't reveal anything too interesting:
Booting Linux on physical CPU 0x0
Linux version 3.14.0-rc6+ (rmk@xxxxxxxxxxxxxxxxxxxxxxx) (gcc version 4.6.4 (GCC) ) #630 SMP Wed Mar 12 01:13:36 GMT 2014
CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c53c7d
CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
Machine model: SolidRun Cubox-i Dual/Quad
cma: CMA: reserved 64 MiB at 8c000000
Memory policy: Data cache writealloc
<hang>
vs.
Booting Linux on physical CPU 0x0
Linux version 3.14.0-rc6+ (rmk@xxxxxxxxxxxxxxxxxxxxxxx) (gcc version 4.6.4 (GCC) ) #631 SMP Wed Mar 12 01:15:37 GMT 2014
CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c53c7d
CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
Machine model: SolidRun Cubox-i Dual/Quad
cma: CMA: reserved 64 MiB at 3b800000
Memory policy: Data cache writealloc
On node 0 totalpages: 524288
free_area_init_node: node 0, pgdat c09d0240, node_mem_map ea7d8000
Normal zone: 1520 pages used for memmap
Normal zone: 0 pages reserved
Normal zone: 194560 pages, LIFO batch:31
HighMem zone: 2576 pages used for memmap
HighMem zone: 329728 pages, LIFO batch:31
...
The only obvious difference is the address of that CMA reservation,
CMA shouldn't make a difference here - but I suspect that other
allocations which need to be in lowmem probably aren't.
Could it be possible to enable memblock debug by adding "memblock=debug"
in cmdline?
Regards,
-grygorii
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