Re: Kernel upgrade 2.4 -> 2.6, makes system very slow on laptop with 1GB of memory: BIOS caching bug



Now for my system, I need them as they are. If I turn off the
CONFIG_HIGHMEM64G=y I will be unable to see the top 4GBytes of RAM, and if I
turn off the CONFIG_X86_4G=y then it will build a kernel that gives itself 1
GByte of address space, and the user only 3 GBytes, but if I have it on like
this, both the users and the kernel can get up to 4 GBytes if they want it.

I guess if you have more than 4 Gigs of RAM in your system my comments
are not really useful... They are also irrelevant if your bios does not
have that caching bug i mentioned...

best,

mark

.



Relevant Pages

  • Re: Curious about memory management with large RAM...
    ... Now when I run for a long time, almost all the memory gets used, as ... This does not surprise me either, except if the kernel can only see 4GBytes ... RAM, how does it manage 7GBytes of cache? ... that I could, in principle, address 64 GBytes of RAM (although the m.b. ...
    (comp.os.linux.misc)
  • Re: 32-bit addressing question
    ... You do not have to swap out the kernel if you have enough RAM; ... GBytes, and you have a kernel compiled for a 4/4 split. ...
    (comp.os.linux.setup)
  • Re: 32-bit addressing question
    ... You do not have to swap out the kernel if you have enough RAM; ... GBytes, and you have a kernel compiled for a 4/4 split. ...
    (comp.os.linux.misc)
  • Re: Newbie Setting up xserver
    ... Could be, but now that I know that low memory is causing the problem, I will ... The kernel gobbles up the rest of the physical memory huh. ... Actually my RAM is split into two ... >it could be that some of the processes related to setting the timezone ...
    (comp.os.linux.setup)
  • Re: PCMCIA: unable to map memory
    ... MB RAM. ... Linux conflicts here with the pcmcia-controller. ... - A patch for the kernel (2.2. ... BadRAM by Rick van Rein (and it's successor BadMEM ...
    (comp.os.linux.portable)