Hi all, I have a system running that uses two Promise Ultra66 cards (PDC20262). However, the hard disks are capible of Ultra100 transfer rates. I needed an Ultra66 card for another machine, so I decided to upgrade this one's cards to Ultra100. I purchased a pair of Promise Ultra100 TX2's so that the hard disks could run at their full speed. However, these new cards do not seem to work properly. I upgraded the kernel to 2.2.19 (from 2.2.18) while still using the old cards, just to verify everything worked. After verifing everything came back up alright, I swaped the cards. After the swap, it seemed that everthing would be fine, except that whenever I try to write more than a few bytes to the disk, the system locks hard, no oops or anything else. I did notice that when booting up with the new card, these lines PDC20268: IDE controller on PCI bus 00 dev 78 PDC20268: chipset revision 1 PDC20268: not 100% native mode: will probe irqs later PDC20268: (U)DMA Burst Bit ENABLED Primary MASTER Mode Secondary MASTER Mode. ide2: BM-DMA at 0xb000-0xb007, BIOS settings: hde:pio, hdf:pio ide3: BM-DMA at 0xb008-0xb00f, BIOS settings: hdg:pio, hdh:pio PDC20268: IDE controller on PCI bus 00 dev 88 PDC20268: chipset revision 1 PDC20268: not 100% native mode: will probe irqs later PDC20268: (U)DMA Burst Bit ENABLED Primary MASTER Mode Secondary MASTER Mode. ide4: BM-DMA at 0xc400-0xc407, BIOS settings: hdi:pio, hdj:pio ide5: BM-DMA at 0xc408-0xc40f, BIOS settings: hdk:pio, hdl:pio tell me that the disks are using pio, instead of DMA like they were with the old card. To get more information, I started to look in /proc: With the old, Ultra66 cards in, this is the report from /proc/ide/pdc202xx PDC20262 Chipset. ------------------------------- General Status --------------------------------- Burst Mode : enabled Host Mode : Normal Bus Clocking : 33 PCI Internal IO pad select : 6 mA Status Polling Period : 15 Interrupt Check Status Polling Delay : 15 --------------- Primary Channel ---------------- Secondary Channel ------------- enabled enabled 66 Clocking enabled enabled Mode PCI Mode PCI FIFO Empty FIFO Empty --------------- drive0 --------- drive1 -------- drive0 ---------- drive1 ------ DMA enabled: yes yes yes yes DMA Mode: UDMA 4 UDMA 4 UDMA 4 UDMA 4 PIO Mode: PIO 4 PIO 4 PIO 4 PIO 4 However, with the new card in (no kernel changes), the report appears to be confused PDC20268 TX2 Chipset. ------------------------------- General Status --------------------------------- Burst Mode : enabled Host Mode : Tri-Stated Bus Clocking : 100 External IO pad select : 10 mA Status Polling Period : 15 Interrupt Check Status Polling Delay : 15 --------------- Primary Channel ---------------- Secondary Channel ------------- enabled enabled 66 Clocking enabled enabled Mode MASTER Mode MASTER Error Error --------------- drive0 --------- drive1 -------- drive0 ---------- drive1 ------ DMA enabled: yes yes yes yes DMA Mode: PIO--- PIO--- PIO--- PIO--- PIO Mode: PIO ? PIO ? PIO ? PIO ? (btw, how do I generate a report for the 2nd Promise card in the system?) I've tried many different combinations of the settings in the "Block Devices" portion of the kernel, but nothing seems to help the situation. Thanks for the help! Ryan Allgaier I'm using Linux-2.2.19 with the following patches - ide.2.2.19.05042001.patch - linux-2.2.19-reiserfs-3.5.32-patch - raid-2.2.19-A1 - linux-2.2.19-ow1 The system is a Athlon 800, running on an Abit KA7 with the latest BIOS, 512mb RAM. This motherboard does not have 66Mhz PCI slots, AFAIK. Both Promise Ultra100 TX2 cards were put into the exact same PCI slots that the Ultra66's were removed from. Here's an lspci -vv 00:00.0 Host bridge: VIA Technologies, Inc. VT8371 [KX133] (rev 02) 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 Region 0: Memory at d0000000 (32-bit, prefetchable) Capabilities: [a0] AGP version 2.0 Status: RQ=31 SBA+ 64bit- FW- Rate=x1,x2 Command: RQ=0 SBA- AGP- 64bit- FW- Rate=<none> 00:01.0 PCI bridge: VIA Technologies, Inc. VT8371 [PCI-PCI Bridge] (prog-if 00 [Normal decode]) 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 Bus: primary=00, secondary=01, subordinate=01, sec-latency=0 BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B- Capabilities: [80] Power Management version 2 Flags: PMEClk- DSI- D1+ D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super] (rev 22) Subsystem: VIA Technologies, Inc. VT82C686/A PCI to ISA Bridge 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 00:07.1 IDE interface: VIA Technologies, Inc. VT82C586 IDE [Apollo] (rev 10) (prog-if 8a [Master SecP PriP]) 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: 32 Region 4: I/O ports at 9000 Capabilities: [c0] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:07.2 USB Controller: VIA Technologies, Inc. VT82C586B USB (rev 10) (prog-if 00 [UHCI]) Subsystem: Unknown device 0925:1234 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: 32, cache line size 08 Interrupt: pin D routed to IRQ 5 Region 4: I/O ports at 9400 Capabilities: [80] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:07.3 USB Controller: VIA Technologies, Inc. VT82C586B USB (rev 10) (prog-if 00 [UHCI]) Subsystem: Unknown device 0925:1234 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: 32, cache line size 08 Interrupt: pin D routed to IRQ 5 Region 4: I/O ports at 9800 Capabilities: [80] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:07.4 Host bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 30) 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- Capabilities: [68] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:09.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone] (rev 30) Subsystem: 3Com Corporation 3C905B Fast Etherlink XL 10/100 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: 32 (2500ns min, 2500ns max), cache line size 08 Interrupt: pin A routed to IRQ 12 Region 0: I/O ports at 9c00 Region 1: Memory at d5218000 (32-bit, non-prefetchable) Capabilities: [dc] Power Management version 1 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1+,D2+,D3hot+,D3cold-) Status: D0 PME-Enable+ DSel=0 DScale=0 PME- 00:0b.0 VGA compatible controller: Trident Microsystems TGUI 9440 (rev e3) (prog-if 00 [VGA]) 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- Interrupt: pin A routed to IRQ 5 Region 0: Memory at d5000000 (32-bit, non-prefetchable) Region 1: Memory at d5200000 (32-bit, non-prefetchable) 00:0f.0 Unknown mass storage controller: Promise Technology, Inc.: Unknown device 4d68 (rev 01) (prog-if 85) Subsystem: Promise Technology, Inc.: Unknown device 4d68 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=slow >TAbort+ <TAbort- <MAbort- >SERR- <PERR+ Latency: 32 (1000ns min, 4500ns max), cache line size 08 Interrupt: pin A routed to IRQ 10 Region 0: I/O ports at a000 Region 1: I/O ports at a400 Region 2: I/O ports at a800 Region 3: I/O ports at ac00 Region 4: I/O ports at b000 Region 5: Memory at d5210000 (32-bit, non-prefetchable) Capabilities: [60] Power Management version 1 Flags: PMEClk- DSI- D1+ D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:11.0 Unknown mass storage controller: Promise Technology, Inc.: Unknown device 4d68 (rev 01) (prog-if 85) Subsystem: Promise Technology, Inc.: Unknown device 4d68 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=slow >TAbort+ <TAbort- <MAbort- >SERR- <PERR+ Latency: 32 (1000ns min, 4500ns max), cache line size 08 Interrupt: pin A routed to IRQ 11 Region 0: I/O ports at b400 Region 1: I/O ports at b800 Region 2: I/O ports at bc00 Region 3: I/O ports at c000 Region 4: I/O ports at c400 Region 5: Memory at d5214000 (32-bit, non-prefetchable) Capabilities: [60] Power Management version 1 Flags: PMEClk- DSI- D1+ D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/