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    SubjectRe: [patch] as-iosched divide by zero fix
    On Wed, 2003-06-11 at 19:10, Robert Love wrote:
    > On Wed, 2003-06-11 at 17:24, Andrew Morton wrote:
    > > Do you know what the actual oops is?
    > I got it all figured out now.
    > It is a divide by zero in update_write_batch() called from
    > as_completed_request().
    > > Odd that starting the X server triggers it. Be interesting if your patch
    > > fixes things for Brian.
    > I reproduced it without X.
    > The divide by zero is on line 959 with the divide by 'write_time'. It
    > can obviously be zero (see line 950). The divide by 'batch' on line 953
    > seems safe.
    > The correct patch is below.
    > Most important question: why are only some of us seeing this?
    > Robert Love

    With regards to the last, here is an anti-AOL! for the oops. I ran
    2.5.70-mm8 for several hours today, doing kernel compiles and running
    dbench 64 on ext3, xfs, and jfs. No oops.

    All while running X (although that now seems moot). Base distro is RH9
    if that could matter. System is UP (PIII), PREEMPT, IDE, i810 chipset.


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