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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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