At 1:01 AM -0600 12/7/04, Tim Welch wrote:
I'm getting NID not found/DMA errors on 5-STABLE with a Seagate 200gb
sata drive:
ad2: FAILURE - WRITE_DMA status=51<READY,DSC,ERROR>
error=10<NID_NOT_FOUND> LBA=268435455
This appears to be a result of 48-bit addressing. Any time a write is
attempted to the sector above, I get multiple messages like this. It
continues until I shut down. After a bit of googling I found this post:
http://lists.freebsd.org/pipermail/freebsd-hackers/2004-October/008821.html
and applied the change suggested. It seems to have fixed the problem,
and I've had no troubles from this since Nov. 18th when I applied that
patch. I'm running an Intel 875PBZ board with the ich5 controller.
The drive in question is a Seagate ST3200822AS/3.01 (as reported by
dmesg). So the question is, will this patch be committed anytime soon?
That looks like a pretty safe patch to make. The message says he
just reduced the 48-bit trigger level by one:
--- ata-lowlevel.c.orig Wed Nov 24 05:47:26 2004
+++ ata-lowlevel.c Wed Dec 8 22:45:39 2004
@@ -701,7 +701,7 @@
ATA_IDX_OUTB(atadev->channel, ATA_ALTSTAT, ATA_A_4BIT);
/* only use 48bit addressing if needed (avoid bugs and overhead) */
- if ((lba > 268435455 || count > 256) && atadev->param &&
+ if ((lba > 268435454 || count > 256) && atadev->param &&
atadev->param->support.command2 & ATA_SUPPORT_ADDRESS48) {
/* translate command into 48bit version */
If this fixes a problem with large disks for both the original
person and for you, then I suspect we should commit it. I don't
know if we need to add a comment saying why we're going with
268435454 instead of 268435455, though.
--
Garance Alistair Drosehn = [EMAIL PROTECTED]
Senior Systems Programmer or [EMAIL PROTECTED]
Rensselaer Polytechnic Institute or [EMAIL PROTECTED]
_______________________________________________
[EMAIL PROTECTED] mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "[EMAIL PROTECTED]"
