Messages in this thread | | | From | Arnd Bergmann <> | Subject | Re: [PATCH 5/6] ARM: ux500: Enable HIGHMEM on all mop500 platforms | Date | Tue, 31 Jul 2012 20:50:02 +0000 |
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On Tuesday 31 July 2012, Russell King - ARM Linux wrote: > I still fail to see how not having highmem enabled would ever cause memory > corruption errors (unless something dealing with memory in a very very > wrong way - iow, not using one of the reservation or memory allocation > methods provided by the kernel.)
The problem is that all users of ux500 systems pass a command line like
vmalloc=256M mem=128M@0 mali.mali_mem=32M@128M hwmem=168M@160M mem=48M@328M mem_issw=1M@383M mem=640M@384M
This is of course totally bogus and should not be done. If I understand Lee correctly, one of the issues resulting from passing a command line like this without enabling highmem is memory corruption.
"Doctor it hurts when I do this ..."
Arnd
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