[lkml]   [2002]   [May]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: 2.5.13 IDE and preemptible kernel problems

    On Fri, 3 May 2002, Martin Dalecki wrote:

    > Uz.ytkownik Andi Kleen napisa?:
    > > Hi,
    > >
    > > When booting an preemptible kernel 2.5.13 kernel on x86-64 I get
    > > very quickly an scheduling in interrupt BUG. It looks like the
    > > preempt_count becomes 0 inside the ATA interrupt handler. This
    > > could happen when save_flags/restore_flags and friends are unmatched
    > > and you have too many flags restores in IDE.
    > Thank you for pointing out. I will re check it.

    Martin, may I suggest that the next line of cleanups should be to remove
    all vestiges of the old global interrupt locking from the IDE driver?
    Including, for example, the crap "PCI method 1" access stuff in CMD640x..

    Also, if you turn on spinlock debugging, that tends to help find the
    really silly things faster (leaving the harder races to be solved by
    brainforce ;)


    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2005-03-22 13:25    [W:0.074 / U:0.092 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site