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Old 10-28-2005, 10:41 PM   #1
demonlj
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with KERNEL's problem, system can't work


I add a 512M memmory(256M+512M now), and update my linux's kernel to 2.6.13.4, my system can't startup.
After some tests, I found that the "config" file which I used to build the kernel have some problem. It's about MEM
if the config like this, the system can't startup
Code:
#CONFIG_HIGHMEM4G is not set
CONFIG_HIGHMEM64G=y
but if like this, the system can startup!
Quote:
CONFIG_HIGHMEM4G=y
# CONFIG_HIGHMEM64G is not set
I wonder what is the problem.
 
Old 10-29-2005, 09:13 AM   #2
foo_bar_foo
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well you set it for 64 Gigs of memory when you don't even have 1 gig
that could be the problem

most likely the base kernel space needed to controll 64 gigs of memory is greater than your total

you also don't need / shouldn't enable 4 Gig highmem either

you will not need or be using the highmem extension at all -- all your memory fits in lowmem.
 
Old 10-29-2005, 10:54 PM   #3
demonlj
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but, when this config is used by others, kernel work ok!
their memory are usually 1G
 
Old 10-30-2005, 12:24 AM   #4
foo_bar_foo
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obviously they are changing the vm subsystem all the time. they got this youngster from italy over there who is a monster at vm concepts.

it goes without saying he is trying to develope a system that actually works with 64 gigs of memory without using up lowmem on 32 bit arch so possibly they moved some of the L2 cache paging stuff into highmem.

I bet they never figured people with no highmem at all would want to choose CONFIG_HIGHMEM64G=y
for no reason.

you are singlehandedly taking user error to a whole new level.
 
Old 10-30-2005, 04:56 AM   #5
demonlj
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got it. thanks
 
Old 11-21-2005, 09:10 AM   #6
archtoad6
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Distribution: MEPIS, Debian, Knoppix,
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[flag] quotable quote

foo_bar_foo:
Quote:
you are singlehandedly taking user error to a whole new level.
Cool comment == great phrasing. May I quote you?

Glad he didn't take offense; although I certainly read it as gentle, perhaps it could be misinterpreted. Again, great phrasing. May I add a smiley? Something like:
Quote:
foo_bar_foo:
You are singlehandedly taking user error to a whole new level.
LQ.o thread 377925
demonlj:
No offense intended, but consider adding your Location to your profile, that way we will know "where you are coming from" -- literally. (Forgive bad pun, please.) It will also make it easier to forgive your lapses in English usage. (I am assuming you are not a native speaker rather than an idiot or a troll.)
 
  


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