In <20010528180421.A23935@spathi.chuq.com>
chuq@chuq.com wrote:

> I didn't try actually taking a dump, I just wanted to make it boot.
> I tried "reboot -d" just now and it crashed in sddump().
> after fixing the bug with uninitialized variables in sddump(),
> now it fails to dump because this check fails:
> 
> 	/* Make sure it was initialized. */
> 	if ((periph->periph_flags & PERIPH_MEDIA_LOADED) != 0)
> 		return (ENXIO);

> anyone have any ideas why this check would fail for a normal scsi disk?

I guess you tried on the first single user prompt.
I saw the similar problem before import of thorpej-scsipi.
PERIPH_MEDIA_LOADED (which was SDEV_MEDIA_LOADED) is
set in sdopen(), so we have to open any sd device files
at least once before getting dumps.

But I notice my news68k (which has ncr5380) hangs on dumps:
---
syncing disks... done

dumping to dev 0,1 offset 68061
dump 
---
I'll check news68k/machdep.c and ncr5380sbc.c, too.
---
Izumi Tsutsui
tsutsui@ceres.dti.ne.jp