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    SubjectRe: More tests [Was: Problem with read blocking for a long time on /dev/scd1]
    Jakob Oestergaard <> writes:

    > On Sun, Dec 22, 2002 at 11:13:14AM -0500, Greg Stark wrote:
    > >
    > > I've done some more tests:
    > >
    > > The problem still occurs with straight ide drivers, no ide-scsi
    > >
    > > The problem still occurs with 2.4.20-ac2
    > Can you reproduce on 2.4.18 or 2.4.19-pre5 ?
    > AFAIK 2.4.X broke at 2.4.19-pre6 - something was changed that related to
    > the order in which read requests are scheduled.

    I originally had the problem with 2.4.18 and only updated to 2.4.20-ac2 hoping
    it would solve the problem. It doesn't look like the same issue as yours.

    When your process is blocked, what wait channel does ps -elf list for it?
    What system call does strace -T show it executing and for how long?

    I wonder what else is on the ide channels, perhaps if I move things around so
    it's the only device on that channel it would help?


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