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DMA timeout and other boot problems If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. Results 1 to 5 of 5 Thread: DMA timeout and other boot problems Tweet Thread Tools Show Printable Version Email this Page… Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode 05-30-2004,12:53 AM #1 owlish View Profile View Forum Posts Registered User Join http://h20564.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c01592475 Date Feb 2004 Posts 29 DMA timeout and other boot problems My boot time is terrible but the distro works fine. I am using gentoo. I am facing some dma problems in both gentoo and winxp so I guess its a problem with my hdd. What I need to know is how can I disable dma during boot time? I understand that I need to recompile the kernel but I dont know http://forums.justlinux.com/showthread.php?128412-DMA-timeout-and-other-boot-problems what settings I need to change. I have attached my kernel config so can anyone please take a look and tell me what I need to change (and any recommendations on better optimizations ;) ) dmesg Linux version 2.6.6-rc1 (root@zi0n) (gcc version 3.2.3 20030422 (Gentoo Linux 1.4 3.2.3-r1, propolice)) #1 Fri May 14 01:11:39 EDT 2004 BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 000000000009fc00 (usable) BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved) BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 000000001dff0000 (usable) BIOS-e820: 000000001dff0000 - 000000001dff3000 (ACPI NVS) BIOS-e820: 000000001dff3000 - 000000001e000000 (ACPI data) BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved) 479MB LOWMEM available. On node 0 totalpages: 122864 DMA zone: 4096 pages, LIFO batch:1 Normal zone: 118768 pages, LIFO batch:16 HighMem zone: 0 pages, LIFO batch:1 DMI 2.2 present. ACPI: RSDP (v000 VIAP4X ) @ 0x000f68e0 ACPI: RSDT (v001 VIAP4X AWRDACPI 0x42302e31 AWRD 0x00000000) @ 0x1dff3000 ACPI: FADT (v001 VIAP4X AWRDACPI 0x42302e31 AWRD 0x00000000) @ 0x1dff3040 ACPI: DSDT (v001 VIAP4X AWRDACPI 0x00001000 MSFT 0x0100000d) @ 0x00000000 Built 1 zonelists Kernel command line: BOOT_IMAGE=Gentoo root=304 root=/dev/ram0 real_root=/dev/hda4 init=/linuxrc No local APIC present or hardware disabled Initializing CPU#0 PID hash table entries: 2048 (order 11: 16384 bytes) Detected 1700.422 MHz processor. Using tsc for high-res timesource Console: colour dummy device 80x25 Memory: 481260k/491456k available (2828k kernel code, 9436k reserved,
Lists & Forms Presentations & Teaching Publications Quick reference Recombinant Proteins LeisureLanguages Literature Running Blog Downloads My other sites English Suomi Deutsch Magyar Hardware (harddisk) failure (dma timeout error, dma_timer_expiry) Submitted by jeltsch on https://jeltsch.org/dma_timeout_error Wed, 04/04/2007 - 21:40 A while ago our server seems to have a hard http://arstechnica.com/civis/viewtopic.php?t=341579 disk failure as the following error messages kept coming up: hda: dma timeout error: [...] hda: dma_timer_expiry: [...] We exchanged the 20 GB HD against my old Mac's 4.7 GB HD and reinstalled the system. A friend of mine tried the "broken" 20GB HD on a Windows system and said it works fine. We dma timeout put it back as a secondary drive to our server and everything went OK for another 6 months until a similar message started appearing during booting: spurious 8259A interrupt: IRQ7 hdc: read_intr: status=0x59 {DriveReady SeekComplete DataRequest Error} hdc: read_intr: error=0x04 {DriveStatusError} ide1: reset: success and during shutdown: hdc: status timeout: status=0x80 hdc: drive not ready for command ide1: reset timed-out Additionally there were strange clicking sound appearing. dma timeout error And there is also a problem with spinning down the hard drive: it never did spin down anymore which made the server quite loud during the night. Since RedHat's default 2.4.20 kernel doesn't support laptop mode, we decided to switch the distro. I exhanged that drive for a 6 GB drive and newly installed Suse Linux 9.1. When I copied over the data from the 20 GB drive to the 6 GB drive there were three or four files that I couldn't copy (IO failure). Now I wonder whether the 20 GB drive is really broken or not. From all symptoms it seems very likely yes. Although if its just DMA failure messages, they can be switched off by turning off DMA mode (given as boot parameters: ide=nodma noapic apm=off That makes obviously performance worse. DMA means Direct Memory Access and it means that data can be moved from the hard disk to another place (e.g. memory or another disk) without the CPU being involved (which makes it much faster and frees the CPU from unnecessary work. Tags: hard disk hard drive DMA failure Linux View the discussion thread. jeltsch's blog Zircon - This is a contributing Drupal ThemeDesign by WeebPal.
Case and Cooling Fetish CPU & Motherboard Technologia Mobile Computing Outpost Networking Matrix Other Hardware Agora Classifieds Ars DIY Forum (Name TBD!) Operating Systems & Software Battlefront Microsoft OS & Software Colloquium Linux Kung Fu Windows Technical Mojo Distributed Computing Arcana Macintoshian Achaia Programmer's Symposium The Server Room Ars Lykaion Gaming, Extra Strength Caplets The Lounge The Soap Box The Boardroom The Observatory Ars Help & Feedback Ars Subscription Member Areas Image Galleries HDD DMA Timeouts 7 posts scube Ars Scholae Palatinae Registered: Sep 24, 2000Posts: 1026 Posted: Wed Dec 07, 2005 11:36 am I just installed a new Segate 250GB IDE HDD into my computer which runs Debian 3.1. It started generating DMA timeout messages almost right away.Here are the relavant messages from dmesg, including the DMA timeout errors: ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx VP_IDE: IDE controller at PCI slot 0000:00:07.1 VP_IDE: chipset revision 6 VP_IDE: not 100% native mode: will probe irqs later VP_IDE: VIA vt82c686b (rev 40) IDE UDMA100 controller on pci0000:00:07.1 ide0: BM-DMA at 0x9400-0x9407, BIOS settings: hda:DMA, hdb:DMA ide1: BM-DMA at 0x9408-0x940f, BIOS settings: hdc:DMA, hdd:DMA hda: HDS722580VLAT20, ATA DISK drive hdb: ST3250823A, ATA DISK drive Using anticipatory io scheduler ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 hda: max request size: 1024KiB hda: 160836480 sectors (82348 MB) w/1794KiB Cache, CHS=16383/255/63, UDMA(100) /dev/ide/host0/bus0/target0/lun0: p1 p2 p3 < p5 p6 p7 > hdb: max request size: 1024KiB hdb: 488397168 sectors (250059 MB) w/8192KiB Cache, CHS=30401/255/63, UDMA(100) . .