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    SubjectRe: [-mm patch] i386: enable 4k stacks by default

    On Apr 30 2007 10:38, William Lee Irwin III wrote:
    >> static char softirq_stack[NR_CPUS * THREAD_SIZE]
    >> __attribute__((__aligned__(THREAD_SIZE)));
    >>
    >> static char hardirq_stack[NR_CPUS * THREAD_SIZE]
    >> __attribute__((__aligned__(THREAD_SIZE)));
    >>
    >> With 8K stacks and NR_CPUS==128 that would be 2MB statically reserved. Yuck.
    >> Really needs to be dynamically allocated. I'll take a look once the .22
    >> big merge is done.
    >
    >Here's what I did for i386 for someone concerned about blowing the stack.

    If we really need it, then maybe a variable like CONFIG_LOG_BUF_SHIFT
    could be hacked up, resulting in CONFIG_THREAD_SIZE_SHIFT, defaulting to 3
    (=8KB).


    Jan
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