Hi Arun, On Tue, Mar 25, 2014 at 3:55 PM, Arun KS <getarunks@gmail.com> wrote:
Hello Anup,
On Sun, Mar 23, 2014 at 9:54 AM, Anup Buchke <anup.estuff@gmail.com> wrote:
For a user/kernel configuration of 3/1GB and (0-16M DMA , 16-896 - Low , 896 - 1024 - High ) Q: Is amount of memory allocated to Vmalloc limited to 128MB? No. 128MB is the default vmalloc size. You can override by kernel boot argument vmalloc=n[KMG]
Ok. So will this reduce(adjust) the LOW_MEM and add that reduced LOW_MEM to HIGH_MEM region in virtual address space?
Thanks, Arun
I read an article which said to increase the Vmalloc allocation size we
need
to either 1) Change user/kernel distribution like 2.75/1.25 which proportionately increase the address space available to High memory 2) For a fixed user/kernel distribution reduce the low memory like 16-800 thereby increasing the size available for high memory.
In either of the case the memory for vmalloc is limited to user/kernel distribution . i.e. the amount of virtual address space available in high memory.
I am a beginner, so please let me know if my understanding is correct..and rectify in-case of wrong.?
Thanks, Anup Buchke.
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