lkml.org 
[lkml]   [2002]   [Aug]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    SubjectRe: cerberus errors on 2.4.19 (ide dma related)
    From
    Date
    Preempt doesn't seem to be the culprit.  Reran the test without using
    preempt and I got MEMORY errors within 22 seconds at udma2. So preempt
    is not the problem here.



    On Sun, 2002-08-18 at 05:19, Andre Hedrick wrote:
    >
    > 2.4.19-preempt
    >
    > All bets are off because who knows what preempt is doing to the state
    > machines and in PIO you are dead.
    >
    > You can not delay transaction of data between interrupts w/o having the
    > transport help out. But the preempt don't get it.
    >
    > If you push your request size down to 8k or to a page you preempt problems
    > will go away, only because granularity of requests. And the price is
    > performance goes in the tank. But this is preempt so who cares.




    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2005-03-22 13:28    [W:0.021 / U:60.344 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site