[Bug 220349] [NEW] Hardy - nvidia mcp51 ata controller: slow access to SATA and PATA drives

[DaneM]

Public bug reported:

Binary package hint: linux-source

I have a MSI P7N-SLI Platinum motherboard.  It has an nVidia MCP51 IDE
controller, according to `lspci`.  This controller, according to google
(and the solution I found) is actually 2 controllers: nVidia 430 (MCP)
and JMicron JMB363.  See this for more details:
http://www.nvnews.net/reviews/msi_p7n_platinum/index.shtml

Symptoms:
-extremely slow optical disk burning
-it takes forever to copy, delete, or create large files
-tracker is REALLY slow, to the point of being practically useless.

I am using Hardy Heron Beta, fully updated, as of April 21, 2008, AMD64
edition, on an Intel Core 2 Duo processor.  I have several drives
attached directly to the 2 PATA controllers on the motherboard:

-primary master: 250GB HD
-primary slave: 18X DVDRW drive
-sec. master: removable HD bay (various older HDs)
-sec. slave: 16X DVDRW drive

I have 1 SATA drive connected to the motherboard at SATA channel 2: a
320GB drive.

I also have installed a Promise Ultra133 TX2 PATA controller card with 2
PATA channels.  Only channel 1 has connected drives:

-master: 40GB hard drive
-slave: 80GB hard drive

The larger drives (250 PATA and 320 SATA) are pretty new; the rest are
not, but all drives pass `badblocks -c 4096 -svnb 4096 /dev/xxx` with no
errors.

Here's the workaround I manged to find:

-compile my own kernel based on `apt-get source linux-source-2.6.24`,
using the "old debian method" from the WIKI.  Attached are the old (NOT
working) config from /boot/, and the new (working) config that I made
using `make menuconfig` in the kernel source directory.  Note that the
sound drivers were, for some reason not set up properly in the original
.config (as far as I could tell), but oddly enough, worked out-of-the-
box.

-blacklist the module, "ata_generic" in /etc/modprobe.d/blacklist.
(Added "blacklist ata_generic" to the last line.)

Please let me know if you need some more info, and I'll do my best to
give it to you.

Thanks for all your work!

--Dane

** Affects: linux-meta (Ubuntu)
     Importance: Undecided
         Status: New

-- 
Hardy - nvidia mcp51 ata controller: slow access to SATA and PATA drives
https://bugs.launchpad.net/bugs/220349
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