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    SubjectRe: [PATCH] 2.4 preemption bug in bh_kmap_irq
    Date
    On Monday 14 April 2003 19:27, Joe Korty wrote:

    Hi Joe,

    > The below patch compiles and boots ide=nodma on my preempt 2.4 kernel
    > on the one motherboard that had the problem. Before this patch, the
    > kernel would not even boot for that motherboard. I also applied and
    > test booted a pure 2.4.21-pre5 kernel with this patch.
    > The patch implements my preference for simplicity, so you may want to
    > take some other approach if maximal performance is what you want.
    yep, and here is the problem ^^^^^^^^. Your patch seems ok but is horribly
    slow. I've tried it first the day you submitted the patch. It's even alot
    slower than w/o Preempt or CONFIG_PREEMPT to no.

    My Celeron 1,3GHz with 512 MB RAM felt like good old 486SX/25 while doing,
    for example, a kernel compilation :(

    ciao, Marc


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