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    SubjectRe: Commit 7eaceaccab5f40 causing boot hang.
    Date
    Quoting Jens Axboe
    >
    > On 2011-03-29 16:13, Rob Landley wrote:
    > > On 03/29/2011 08:59 AM, Jens Axboe wrote:
    > >> On 2011-03-29 10:52, Rob Landley wrote:
    > >>> I'm booting all this under kvm or qemu, by the way:
    > >>>
    > >>> qemu-system-x86_64 -m 1024 -kernel arch/x86/boot/bzImage \
    > >>> -hda ~/sid.ext3 -append "root=/dev/hda rw"
    > >>>
    > >>> Sometimes with init=/bin/bash in that last quoted bit. The root
    > >>> filesystem's debian sid but that's probably not relevant because it
    > >>> worked fine with .38.
    > >>
    > >> Does this help?
    > >>
    > >> diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
    > >> index 0e406d73..ca27d30 100644
    > >> --- a/drivers/ide/ide-io.c
    > >> +++ b/drivers/ide/ide-io.c
    > >> @@ -570,8 +570,7 @@ void ide_requeue_and_plug(ide_drive_t *drive, struct request *rq)
    > >> spin_unlock_irqrestore(q->queue_lock, flags);
    > >>
    > >> /* Use 3ms as that was the old plug delay */
    > >> - if (rq)
    > >> - blk_delay_queue(q, 3);
    > >> + blk_delay_queue(q, 3);
    > >> }
    > >>
    > >> static int drive_is_ready(ide_drive_t *drive)
    > >>
    > >
    > > Nope, still hung the same way.
    >
    > Funky. I'll try and reproduce this tonight.
    >
    > --
    > Jens Axboe
    >
    I have had a similiar problem (reported earlier) unable to boot.
    With git15-18 hung with IDE drives (hda), git19-21 moved the hang down to
    the IDE CDROM (hdc). Applied the above patch and now booted into git21 without
    any hang and all appears ok. This is i386, UP.

    --
    Pete Clements


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