Hi, I've been happily using MD 7.2 in my box and now I'm trying moving to 8.0. Everything seems to work properly but my hard drives that run extremely slowly, 2 MB/s. For exemple, from the comand: "/sbin/hdparm -d 1 /dev/hda" I get: "/dev/hda: setting using -dma to 1 (on) HDIO_SET_DMA failed: operation not permitted using-dma = 0 (off)" I've tyied to install it several times, upgrade de kernel, but nothing works. With MD 7.2 I used to get 16 Mb/s Does anyone has same suggestion. Thank you in advance. Here you can see the output of the "dmesg" comand "Linux version 2.4.5-3mdk ([EMAIL PROTECTED]) (gcc version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release / Linux-Mandrake 8.1)) #1 Mon Jun 4 23:15:22 CEST 2001 BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 000000000009fc00 (usable) BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved) BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 000000000fff0000 (usable) BIOS-e820: 000000000fff0000 - 000000000fff3000 (ACPI NVS) BIOS-e820: 000000000fff3000 - 0000000010000000 (ACPI data) BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved) On node 0 totalpages: 65520 zone(0): 4096 pages. zone(1): 61424 pages. zone(2): 0 pages. Kernel command line: BOOT_IMAGE=linux root=1607 Initializing CPU#0 Detected 1214.458 MHz processor. Console: colour VGA+ 80x25 Calibrating delay loop... 2424.83 BogoMIPS Memory: 254792k/262080k available (996k kernel code, 6900k reserved, 351k data, 700k init, 0k highmem) Dentry-cache hash table entries: 32768 (order: 6, 262144 bytes) Inode-cache hash table entries: 16384 (order: 5, 131072 bytes) Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes) Page-cache hash table entries: 65536 (order: 6, 262144 bytes) CPU: Before vendor init, caps: 0183f9ff c1c7f9ff 00000000, vendor = 2 Intel machine check architecture supported. Intel machine check reporting enabled on CPU#0. CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) CPU: L2 Cache: 256K (64 bytes/line) CPU: After vendor init, caps: 0183f9ff c1c7f9ff 00000000 00000000 CPU: After generic, caps: 0183f9ff c1c7f9ff 00000000 00000000 CPU: Common caps: 0183f9ff c1c7f9ff 00000000 00000000 CPU: AMD Athlon(tm) Processor stepping 02 Enabling fast FPU save and restore... done. Checking 'hlt' instruction... OK. POSIX conformance testing by UNIFIX mtrr: v1.40 (20010327) Richard Gooch ([EMAIL PROTECTED]) mtrr: detected mtrr type: Intel PCI: PCI BIOS revision 2.10 entry at 0xfb420, last bus=1 PCI: Using configuration type 1 PCI: Probing PCI hardware Unknown bridge resource 2: assuming transparent PCI: Using IRQ router default [1106/3099] at 00:00.0 isapnp: Scanning for PnP cards... isapnp: No Plug & Play device found PnP: PNP BIOS installation structure at 0xc00fbe80 PnP: PNP BIOS version 1.0, entry at f0000:beb0, dseg at f0000 Linux NET4.0 for Linux 2.4 Based upon Swansea University Computer Society NET3.039 Initializing RT netlink socket apm: BIOS version 1.2 Flags 0x07 (Driver version 1.14) Starting kswapd v1.8 VFS: Diskquotas version dquot_6.5.0 initialized pty: 256 Unix98 ptys configured Serial driver version 5.05b (2001-05-03) with HUB-6 MANY_PORTS MULTIPORT SHARE_IRQ SERIAL_PCI ISAPNP enabledttyS00 at 0x03f8 (irq = 4) is a 16550A block: queued sectors max/low 169285kB/56428kB, 512 slots per queue RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize Uniform Multi-Platform E-IDE driver Revision: 6.31 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx VP_IDE: IDE controller on PCI bus 00 dev 89 VP_IDE: chipset revision 6 VP_IDE: not 100% native mode: will probe irqs later VP_IDE: Unknown VIA SouthBridge, contact Vojtech Pavlik <[EMAIL PROTECTED]> hda: ST320420A, ATA DISK drive hdb: 10X8X32, ATAPI CD/DVD-ROM drive hdc: SAMSUNG SV0844D, ATA DISK drive hdd: SAMSUNG DVD-ROM SD-606F, ATAPI CD/DVD-ROM drive ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 ide0: probed IRQ 14 failed, using default. ide1 at 0x170-0x177,0x376 on irq 15 ide1: probed IRQ 15 failed, using default. hda: 39851760 sectors (20404 MB) w/2048KiB Cache, CHS=2480/255/63 hdc: 16514064 sectors (8455 MB) w/480KiB Cache, CHS=16383/16/63 hdb: ATAPI 32X CD-ROM CD-R/RW drive, 4096kB Cache Uniform CD-ROM driver Revision: 3.12 hdd: ATAPI 32X DVD-ROM drive, 512kB Cache Partition check: hda: hda1 hda2 < hda5 hda6 hda7 hda8 > hdc: hdc1 < hdc5 hdc6 hdc7 > md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27 md.c: sizeof(mdp_super_t) = 4096 autodetecting RAID arrays autorun ... ... autorun DONE. NET4: Linux TCP/IP 1.0 for NET4.0 IP Protocols: ICMP, UDP, TCP, IGMP IP: routing cache hash table of 2048 buckets, 16Kbytes TCP: Hash tables configured (established 16384 bind 16384) Linux IP multicast router 0.06 plus PIM-SM NET4: Unix domain sockets 1.0/SMP for Linux NET4.0. RAMDISK: Compressed image found at block 0 Uncompressing........done. Freeing initrd memory: 167k freed VFS: Mounted root (ext2 filesystem). SCSI subsystem driver Revision: 1.00 8139too Fast Ethernet driver 0.9.15c loaded eth0: RealTek RTL8139 Fast Ethernet at 0xd084b000, 00:02:44:0c:69:2e, IRQ 11 eth0: Identified 8139 chip type 'RTL-8139C' eth1: RealTek RTL8139 Fast Ethernet at 0xd084d000, 00:48:54:80:57:42, IRQ 3 eth1: Identified 8139 chip type 'RTL-8139B' reiserfs: checking transaction log (device 16:07) ... Using r5 hash to sort names ReiserFS version 3.6.25 VFS: Mounted root (reiserfs filesystem) readonly. change_root: old root has d_count=2 Trying to unmount old root ... okay Freeing unused kernel memory: 700k freed Adding Swap: 248968k swap-space (priority -1) scsi0 : SCSI host adapter emulation for IDE ATAPI devices Linux video capture interface: v1.00 i2c-core.o: i2c core module i2c-algo-bit.o: i2c bit algorithm module bttv: driver version 0.7.65 loaded bttv: using 2 buffers with 2080k (4160k total for capture bttv: Bt8xx card found (0). bttv0: Bt878 (rev 2) at 00:0a.0, irq: 11, latency: 32, memory: 0xe3001000 bttv0: subsystem: 6606:217d => Leadtek WinFast TV 2000 => card=34 bttv0: model: BT878(Leadtek WinFast 2000) [autodetected] i2c-core.o: adapter bt848 #0 registered as adapter 0. bttv0: i2c: checking for MSP34xx @ 0x80... not found bttv0: i2c: checking for TDA9875 @ 0xb0... not found bttv0: i2c: checking for TDA7432 @ 0x8a... not found tvaudio: TV audio decoder + audio/video mux driver tvaudio: known chips: tda9840,tda9873h,tda9850,tda9855,tea6300, tea6420,tda8425,pic16c54 (PV951) i2c-core.o: driver generic i2c audio driver registered. i2c-core.o: driver i2c TV tuner driver registered. tuner: chip found @ 0x61 bttv0: i2c attach [(unset)] i2c-core.o: client [(unset)] registered to adapter [bt848 #0](pos. 0). MSDOS FS: Using codepage 850 MSDOS FS: IO charset iso8859-1 usb.c: registered new driver usbdevfs usb.c: registered new driver hub usb-uhci.c: $Revision: 1.259 $ time 23:27:20 Jun 4 2001 usb-uhci.c: High bandwidth mode enabled usb-uhci.c: USB UHCI at I/O 0xe000, IRQ 3 usb-uhci.c: Detected 2 ports usb.c: new USB bus registered, assigned bus number 1 hub.c: USB hub found hub.c: 2 ports detected usb-uhci.c: USB UHCI at I/O 0xe400, IRQ 3 usb-uhci.c: Detected 2 ports usb.c: new USB bus registered, assigned bus number 2 hub.c: USB hub found hub.c: 2 ports detected usb-uhci.c: USB UHCI at I/O 0xe800, IRQ 3 usb-uhci.c: Detected 2 ports usb.c: new USB bus registered, assigned bus number 3 hub.c: USB hub found hub.c: 2 ports detected usb-uhci.c: v1.251 Georg Acher, Deti Fliegl, Thomas Sailer, Roman Weissgaerber usb-uhci.c: USB Universal Host Controller Interface driver Winbond Super-IO detection, now testing ports 3F0,370,250,4E,2E ... SMSC Super-IO detection, now testing Ports 2F0, 370 ... PnPBIOS: Parport found PNPBIOS PNP0401 at io=0378,0778 irq=7 dma=3 0x378: FIFO is 16 bytes 0x378: writeIntrThreshold is 16 0x378: readIntrThreshold is 16 0x378: PWord is 8 bits 0x378: Interrupts are ISA-Pulses 0x378: ECP port cfgA=0x10 cfgB=0x40 0x378: ECP settings irq=<none or set by other means> dma=<none or set by other means> parport0: PC-style at 0x378 (0x778), irq 7, dma 3 [PCSPP,TRISTATE,COMPAT,ECP,DMA] parport0: cpp_daisy: aa5500ff(38) parport0: assign_addrs: aa5500ff(38) parport0: cpp_daisy: aa5500ff(38) parport0: assign_addrs: aa5500ff(38) eth0: Setting half-duplex based on auto-negotiated partner ability 0000. eth1: Setting half-duplex based on auto-negotiated partner ability 0000. es1371: version v0.30 time 23:26:23 Jun 4 2001 es1371: found chip, vendor id 0x1274 device id 0x1371 revision 0x08 es1371: found es1371 rev 8 at io 0xd000 irq 11 es1371: features: joystick 0x0 ac97_codec: AC97 Audio codec, id: 0x8384:0x7609 (SigmaTel STAC9721/23) divide error: 0000 CPU: 0 EIP: 0010:[<c018a590>] EFLAGS: 00010246 eax: 000003e8 ebx: c8545f0c ecx: 00000032 edx: 00000000 esi: bffff470 edi: c8545f10 ebp: c033b320 esp: c8545e88 ds: 0018 es: 0018 ss: 0018 Process hdparm (pid: 1361, stackpage=c8545000) Stack: c8545f0c bffff470 c8545f10 bffff46c c033b44c 42000000 00000000 c8545f0c c8545e1c 00000000 00000000 00000000 c017d771 c033b320 000000ef 00000042 c017d7ac c033b320 00000042 cb6cb320 ffffffe7 bffff46c 0000031f c015e69e Call Trace: [<c017d771>] [<c017d7ac>] [<c015e69e>] [<c015ebae>] [<c016091b>] [<c013611e>] [<c013ca56>] [<c01360f8>] [<c0106d57>] Code: f7 35 04 c1 31 c0 89 c7 a1 f8 c0 31 c0 66 8b 40 08 31 d2 83 divide error: 0000 CPU: 0 EIP: 0010:[<c018a590>] EFLAGS: 00010246 eax: 000003e8 ebx: c3809f0c ecx: 00000032 edx: 00000000 esi: bffff480 edi: c3809f10 ebp: c033b320 esp: c3809e88 ds: 0018 es: 0018 ss: 0018 Process hdparm (pid: 1373, stackpage=c3809000) Stack: c3809f0c bffff480 c3809f10 bffff47c c033b44c 42000000 00000000 c3809f0c c3809e1c 00000000 00000000 00000000 c017d771 c033b320 000000ef 00000042 c017d7ac c033b320 00000042 cafbd8a0 ffffffe7 bffff47c 0000031f c015e69e Call Trace: [<c017d771>] [<c017d7ac>] [<c015e69e>] [<c015ebae>] [<c016091b>] [<c013611e>] [<c013ca56>] [<c01360f8>] [<c0106d57>] Code: f7 35 04 c1 31 c0 89 c7 a1 f8 c0 31 c0 66 8b 40 08 31 d2 83 <6>cdrom: open failed. inserting floppy driver for 2.4.5-3mdk Floppy drive(s): fd0 is 1.44M FDC 0 is a post-1991 82077 end_request: I/O error, dev 02:00 (floppy), sector 0 cdrom: open failed. end_request: I/O error, dev 02:00 (floppy), sector 0" And the output of "/sbin/hdparm -i /dev/hda": "/dev/hda: Model=ST320420A, FwRev=3.21, SerialNo=3CL0D02V Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% } RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=0 BuffType=unknown, BuffSize=2048kB, MaxMultSect=16, MultSect=8 CurCHS=16383/16/63, CurSects=-66060037, LBA=yes, LBAsects=39851760 IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120} PIO modes: pio0 pio1 pio2 pio3 pio4 DMA modes: mdma0 mdma1 mdma2 udma0 udma1 *udma2 AdvancedPM=no Drive Supports : Reserved : ATA-1 ATA-2 ATA-3 ATA-4"