Dieter Nützel wrote:
>
> Am Mittwoch, 20. November 2002 19:44 schrieb Alan Cox:
> > On Wed, 2002-11-20 at 17:30, Dieter Nützel wrote:
> > > System lookup immediately when I try to start "ipers", "isosurf" or
> > > switch the screen. Sadly even when I try the Mesa-4-1-branch with
> > > 2.5.47-mm1 or 2.4.19-ck5 (radeon.o 1.6.0).
> >
> > Are you using scsi - any measuable amount of scsi I/O also hangs 2.5.48
> > 8(
Here's James's fix:
drivers/scsi/scsi_lib.c | 9 +++++----
1 files changed, 5 insertions(+), 4 deletions(-)
--- 25/drivers/scsi/scsi_lib.c~jejb-scsi-fix Wed Nov 20 09:45:08 2002
+++ 25-akpm/drivers/scsi/scsi_lib.c Wed Nov 20 09:45:08 2002
@@ -1021,10 +1021,11 @@ void scsi_request_fn(request_queue_t * q
break;
if(!req) {
- /* can happen if the prep fails
- * FIXME: elv_next_request() should be plugging the
- * queue */
- blk_plug_device(q);
+ /* If the device is busy, a returning I/O
+ * will restart the queue. Otherwise, we have
+ * to plug the queue */
+ if(SDpnt->device_busy == 0)
+ blk_plug_device(q);
break;
}
> Yes, didn't have ATA at all.
> Only if some friends have problems with bad Win disks (bad sectors etc. =>
> dd_rescue)...;-)
>
> No hangs but slower.
> I'll have a second look at it.
> 2.5.48-mm1 have additional IO scheduler hacks.
It has a different fix to the scsi thing.
> Some progress with KDE (3.1 beta/rc) and shared pagetables.
> Normal startup hangs but I had some luck with running the KDE progs by hand.
>
> More about it in another post.
> So that we can take DRI-Devel out.
>
(wonders what this email is really about. oh well)
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