While building a newer kernel for a server (which had been running
2.6.12 or so), I spent some time looking for how to set the VMSPLIT
.config options. I searched in menuconfig for VMSPLIT and was given a
few responses, all similar to this:
â?? Symbol: VMSPLIT_3G [=n]
â?? Prompt: 3G/1G user/kernel split
â?? Defined at arch/i386/Kconfig:488
â?? Depends on: <choice>
Since depending on "<choice>" is less than helpful, I did an rgrep and
found what it actually depends on:
depends on EXPERIMENTAL && !X86_PAE
prompt "Memory split" if EMBEDDED
default VMSPLIT_3G
and was able to determine that I needed the patch recently submitted by
Dave Hansen to enable VMSPLIT for highmem kernels. Is there a reason
that menuconfig is not able to tell me this, i.e. this is a known
limitation of the choice syntax?
Thanks,
Nish
--
Nishanth Aravamudan <[email protected]>
IBM Linux Technology Center
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