Re: kernel BUG at ide-cd.c:1726 in 2.6.24-03863-g0ba6c33 && -g8561b089

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On Thursday 31 January 2008, Jens Axboe wrote:
> On Thu, Jan 31 2008, Florian Lohoff wrote:
> > On Thu, Jan 31, 2008 at 02:05:58PM +0100, Jens Axboe wrote:
> > > The below fix should be enough. It's perfectly legal to have leftover
> > > byte counts when the drive signals completion, happens all the time for
> > > eg user issued commands where you don't know an exact byte count.
> > > 
> > > diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
> > > index 74c6087..bee05a3 100644
> > > --- a/drivers/ide/ide-cd.c
> > > +++ b/drivers/ide/ide-cd.c
> > > @@ -1722,7 +1722,7 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
> > >  	 */
> > >  	if ((stat & DRQ_STAT) == 0) {
> > >  		spin_lock_irqsave(&ide_lock, flags);
> > > -		if (__blk_end_request(rq, 0, 0))
> > > +		if (__blk_end_request(rq, 0, rq->data_len))
> > >  			BUG();
> > >  		HWGROUP(drive)->rq = NULL;
> > >  		spin_unlock_irqrestore(&ide_lock, flags);
> > > 
> > 
> > Fixes the crash on boot for me ...
> 
> Great, thanks for confirming that. I'll make sure the patch goes
> upstream today, if Linus is available.

Thanks Jens.
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