Date: Thu, 20 Oct 2005 04:30:48 +0200 From: Alson van der Meulen <alson+ml@alm.flutnet.org> To: freebsd-stable@freebsd.org Subject: Re: Problems with PCI SATA controller (bug in ATA driver? both ATAng and ATAmkIII) Message-ID: <20051020023047.GB10931@waalsdorp.nl> In-Reply-To: <20051019191414.GA10931@waalsdorp.nl> References: <20051019191414.GA10931@waalsdorp.nl>
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(Please CC me in replies as I'm not a subscriber of this list) Update: I tested with an i810-based mainboard (Celeron 1GHz, RTL8139 ethernet, Promise SATAII 150 TX4 controller, 3 SATA disks in RAID 5, FreeBSD 6.0-RC1). It remained stable for two hours. I suspect this is because it has far less bandwith (iostat showed only about 3MB/s to the disks, as opposed to 12MB/s with the i915 mainboard). After I added a dd if=/dev/zero of=foo bs=128k (this increased the bandwidth usage to the disk to about 9MB/s according to iostat), it crashed in about 40 minutes. This suggests that it crashes because of the large amount of I/O. However, it's only about 10MB/s per disk (for three disks), so it doesn't seem to be that exotic to me. Since this is a completely different mainboard, it seems clearly a software issue to me. The built-in ICH6 controller works fine however, so it may be PDC*0518/SII311* specific (which basically means any PCI SATA controller available locally). Alson
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