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SubjectRe: ide-scsi + /dev/dsp == solid lockup
On Sun, 15 Oct 2000, Leigh Orf wrote:

>I hesitate to declare victory just yet, but I think my problem is solved
>(over a half hour of testing and no lockup). In reading the pdf docs on
>the motherboard, by chance I found the word "concurrency" here:

Makes me wonder why my PIIX3 (i430HX) Tyan Tomcat IVD has never had a
problem with an ISA SoundBlaster AWE32 even with Passive Release enabled
and such devices as PCI TV cards, PCI Ethernet controllers, and ISA modems
in it. I've burned CD's on an IDE HP CD-Writer+ (hdb) from an IBM hard
drive (hdc) while listening to MP3's as well. Luck?

Here's a diff of the PCI space:

--- piix3 Tue Oct 17 17:34:56 2000
+++ piix4 Tue Oct 17 17:33:46 2000
@@ -1,20 +1,23 @@
-00:07.0 ISA bridge: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II] (rev 01)
- Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
- Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
- Latency: 0 set
-00: 86 80 00 70 0f 00 80 02 01 00 01 06 00 00 80 00
+00:01.0 ISA bridge: Intel Corporation 82371AB PIIX4 ISA (rev 01)
+ Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr-
+ Stepping- SERR- FastB2B-
+ Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
+ <TAbort- <MAbort- >SERR- <PERR-
+ Latency: 0
+00: 86 80 10 71 0f 00 80 02 01 00 01 06 00 00 80 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-40: 00 00 00 00 00 00 00 00 00 00 00 00 4d 00 33 01
+40: 00 00 00 00 00 00 00 00 00 00 00 00 09 00 23 00
50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-60: 0b 0b 80 0b 00 00 00 00 00 f2 90 00 00 00 00 00
-70: 20 00 00 00 00 00 0c 0c 02 00 00 00 00 00 00 00
-80: 00 00 07 00 00 00 00 00 00 00 00 00 00 00 00 00
+60: 0b 0a 80 09 10 00 00 00 00 f2 00 00 00 00 00 00
+70: 00 00 00 00 00 00 0c 0c 00 00 00 00 00 00 00 00
+80: 00 00 02 00 00 00 00 00 00 00 00 00 00 00 00 00
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-a0: 08 00 00 00 02 00 00 00 0f 00 00 00 08 00 01 00
-b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+b0: 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+c0: 00 00 00 00 00 00 00 00 00 00 00 21 00 00 00 00
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-f0: 00 00 00 00 00 00 00 00 10 0f 00 00 00 00 00 00
+f0: 00 00 00 00 00 00 00 00 28 0f 00 00 00 00 00 00
I have the 'offending' bit on as you can see.

-George Greer

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