Messages in this thread | | | Date | Sat, 8 Mar 2003 00:23:55 +0100 | From | Matthias Andree <> | Subject | Re: IDE DMA/VIA woes on SuSE 2.4.19-167 |
| |
On Wed, 05 Mar 2003, Matthias Andree wrote:
> Plextor PX-W4824TA 1.03 as hdc (no hdd) > VIA KT133 > > 00:07.1 IDE interface: VIA Technologies, Inc. VT82C586B PIPC Bus Master IDE (rev 10) (prog-if 8a [Master SecP PriP]) > Flags: bus master, medium devsel, latency 32 > I/O ports at ffa0 [size=16] > Capabilities: [c0] Power Management version 2 > > When I try to enable DMA (hdparm -d1 or hdparm -d1 -X66), hdparm -tT > chokes, SuSE k_athlon-2.4.19-167. FreeBSD-5 (with atapicam) is fine and > uses UDMA33.
Now, seems that PIO manages the default hdparm -tT block size, but DMA doesn't; but the error messages in the kernel ring buffer aren't specific.
I let go of hdparm -tT, installed Jörg Schilling's sdd and ran sdd if=/dev/sr1 -onull -t bs=2048 and lo and behold, it passed and read a data CD with up to 45x. So the remaining problem is that the ATAPI drives stick to PIO for data reads.
I tried applying Andrew's ide-akpm on top of SuSE's kernel, to find it crashes on boot on SuSE's hardware scan.
If that's interesting enough, I can try to dig up the crash messages (I'll have to use a serial console for that though). - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |