Date: Fri, 28 Feb 2003 14:40:07 -0500 From: "Mike Edenfield" <kutulu@kutulu.org> To: "James Satterfield" <james@uberduper.com>, <current@freebsd.org> Subject: Re: SCHED_ULE oddities Message-ID: <00ce01c2df61$364fb3d0$29330f0a@lcapps.educate.com> References: <3E5FB785.6000704@uberduper.com>
next in thread | previous in thread | raw e-mail | index | archive | help
From: "James Satterfield" <james@uberduper.com> 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 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?00ce01c2df61$364fb3d0$29330f0a>