From: "James Satterfield" <[EMAIL PROTECTED]>
Sent: Friday, February 28, 2003 2:24 PM


> First off, I found SCHED_ULE to be very slow. More importantly, the two
> times that I rebooted while running it, shutdown failed to sync the
> disks. On the second reboot, I had just installed a new kernel. The
> results of this were ugly. /boot/kernel and /boot/kernel.old
> disappeared. I've since gotten the box back up and running using a
> SCHED_4BSD kernel and I no longer have these sync problems.

I haven't been able to pin it down to SCHED_ULE, but three times since I
switched schedulers, I have noticed that doing a clean "shutdown -r" after a
buildworld resulted in the filesystems failing to unmount.  A background
fsck was forced on all of them at reboot, but no problems were found and I
haven't noticed any data loss.  I just switched back to SCHED_4BSD, to see
if it continues, but it was only once every 3 or 4 reboots.

--Mike Edenfield


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