Bug 15923
| Summary: | ATA/EIDE DMA does not work with some hardware (ALI Aladdin, IBM 34GXP) | ||
|---|---|---|---|
| Product: | Base System | Reporter: | timlee <timlee> |
| Component: | kern | Assignee: | Søren Schmidt <sos> |
| Status: | Closed FIXED | ||
| Severity: | Affects Only Me | ||
| Priority: | Normal | ||
| Version: | 3.4-STABLE | ||
| Hardware: | Any | ||
| OS: | Any | ||
|
Description
timlee
2000-01-05 20:30:00 UTC
It seems timlee@netcom.com wrote: > The above combination gives DMA errors when used with a kernel > whose ATA DMA is turned on (controller wdc0 ... flags 0xa0ffa0ff). > With ATA DMA turned off (controller wdc0 ... flags 0x80ff80ff), no > problems. Errors do not cause crashes or damage, but slow down the > system and cause numerous messages to be printed on the console. > NetBSD 1.4.1 has a similar problem. Linux kernel 2.2.13 with the > "experimental" Acer ATA DMA driver does not have this problem. > >How-To-Repeat: > Use a kernel with ATA DMA turned on with the listed combination of > hardware (probably motherboard/chipset and disk are the key pieces). > >Fix: > GENERIC kernels should keep ATA DMA off as they are now. Turning > the feature on in the GENERIC kernel (as NetBSD 1.4.1 does) can make > installing and initial configuration difficult on some combinations > of hardware. A true fix may require looking into some Acer chipset > specific issues as Linux 2.2 does. Have you tried the new ATA driver in 4.0 current ?? -Søren With ALI Aladdin, K6II@450, 64MB RAM and FreeBSD-4.0 _but_ a Western Digital Caviar 33200, system runs fine, but DMA is disabled by the kernel on startup due to CRC problems when root filesystem is mounted. dmesg output follows, note last 6 lines. >>>BEGIN:dmesg-output.txt------------------------------------------------= ------- Copyright (c) 1992-2000 The FreeBSD Project. Copyright (c) 1982, 1986, 1989, 1991, 1993 The Regents of the University of California. All rights reserved. FreeBSD 4.0-RELEASE #0: Thu Apr 20 07:39:18 CEST 2000 root@taller.langre-oficina.net:/usr/src/sys/compile/TALLER2 Timecounter "i8254" frequency 1193182 Hz CPU: AMD-K6(tm) 3D processor (451.02-MHz 586-class CPU) Origin =3D "AuthenticAMD" Id =3D 0x58c Stepping =3D 12 Features=3D0x8021bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,PGE,MMX> AMD Features=3D0x80000800<SYSCALL,3DNow!> real memory =3D 67043328 (65472K bytes) avail memory =3D 62058496 (60604K bytes) Preloaded elf kernel "kernel" at 0xc02d5000. md0: Malloc disk npx0: <math processor> on motherboard npx0: INT 16 interface pcib0: <AcerLabs M1541 (Aladdin-V) PCI host bridge> on motherboard pci0: <PCI bus> on pcib0 pcib1: <AcerLabs M5243 PCI-PCI bridge> at device 1.0 on pci0 pci1: <PCI bus> on pcib1 pci1: <S3 Trio3D/2X graphics accelerator> at 0.0 isab0: <AcerLabs M1533 portable PCI-ISA bridge> at device 7.0 on pci0 isa0: <ISA bus> on isab0 atapci0: <AcerLabs Aladdin ATA33 controller> port 0xf000-0xf00f at device 15.0 on pci0 ata0: at 0x1f0 irq 14 on atapci0 ata1: at 0x170 irq 15 on atapci0 ahc0: <Adaptec aic7850 SCSI adapter> port 0xe000-0xe0ff mem 0xe5000000-0xe5000fff irq 10 at device 18.0 on pci0 ahc0: aic7850 Single Channel A, SCSI Id=3D7, 3/255 SCBs ahc0: Host Adapter Bios disabled. Using default SCSI device parameters ed0: <NE2000 PCI Ethernet (KTI)> port 0xe400-0xe41f irq 11 at device 20.0 on pci0 ed0: address 00:40:f6:4c:19:e8, type NE2000 (16 bit) = fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0 fdc0: FIFO enabled, 8 bytes threshold fd0: <1440-KB 3.5" drive> on fdc0 drive 0 atkbdc0: <keyboard controller (i8042)> at port 0x60-0x6f on isa0 atkbd0: <AT Keyboard> irq 1 on atkbdc0 psm0: <PS/2 Mouse> irq 12 on atkbdc0 psm0: model Generic PS/2 mouse, device ID 0 vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0 sc0: <System console> on isa0 sc0: VGA <16 virtual consoles, flags=3D0x200> sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0 sio0: type 16550A sio1 at port 0x2f8-0x2ff irq 3 on isa0 sio1: type 16550A ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0 ppc0: Generic chipset (EPP/NIBBLE) in COMPATIBLE mode lpt0: <Printer> on ppbus0 lpt0: Interrupt-driven port ad0: 3098MB <WDC AC33200L> [6296/16/63] at ata0-master using UDMA33 acd0: CDROM <Creative CD-ROM CD4832E> at ata1-master using PIO4 Waiting 2 seconds for SCSI devices to settle Mounting root from ufs:/dev/ad0s1a ad0: UDMA ICRC READ ERROR blk# 0 retrying ad0: UDMA ICRC READ ERROR blk# 0 retrying ad0: UDMA ICRC READ ERROR blk# 0 retrying ad0: UDMA ICRC READ ERROR blk# 0ata0-master: WARNING: WAIT_READY active=3DATA_ACTIVE_ATA falling back to PIO mode >>>END:dmesg-output.txt--------------------------------------------------= ------------- -- = Ra=FAl Pedroche __________________________________________________ Do You Yahoo!? Talk to your friends online with Yahoo! Messenger. http://im.yahoo.com Responsible Changed From-To: freebsd-bugs->sos Over to ATA maintainer. State Changed From-To: open->closed You get ICRC errors which indicates you have a cable proble.. Try a new cable, and make sure its not close to any EMC radiating source (PSU etc).. I have the same board and disk here, and it works just fine, There are no outstanding problems with the Acer support with the ata driver. |
