Visit Jeremy's Blog.
Go Back > Forums > Linux Forums > Linux - Hardware
User Name
Linux - Hardware This forum is for Hardware issues.
Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?


  Search this Thread
Old 07-17-2004, 02:17 AM   #1
LQ Newbie
Registered: Jul 2004
Posts: 1

Rep: Reputation: 0
reading data from a specific hd hard locks system

I'm having a problem reading data off a specific hard drive. At first I thought it was a problem with the drive but the problem also occurs with a new 200 gig wd drive - so I'm looking for some help.

The problem occured originally with a seagate 6 gig (model not currently available - but I Can get it later if needed) drive. The system recognizes it and I was able to partition and format the drive with no problems. I can also write data to the drive with no problem. But trying to read from the drive causes the system to hardlock almost as soon as the read starts - fast enough that nothing is ever sent to the system logs. I was very sure this was a bad drive until I replaced it with a new 200 gig WD drive which has the exact same issue.

Basic system info:

- Via Apollo chipset MB (some generic thing - no name on it - I inheretied it second hand)
- AMD K6/2 300 MHZ
- 64 Meg ram - 2 identicle 32 meg simms, tests good
- 3 ide hard disks
- 1 ide cdrom
- 2 external scsi hard disks on an tekram DC395 controller
- 2 nics (Linksys LNE100 TX version 2 and a longshine unknown model Realtek 8029 chip pci-ne2k compatible)
- Mandrake 9.1 - kernel is 2.4.21-0.13mdk
- Same problem on Mandrake 10 - kernel is 2.6.3-7mdk

The system config is fairly complicated - if you need more detail on something than I've included please ask.

IDE drive config is as follows:
hda: WDC AC28400R, ATA DISK drive
hdb: Cyberdrive 120D, ATAPI CD/DVD-ROM drive
hdc: WDC WD2000JB-00GVA0, ATA DISK drive
hdd: WDC AC36400L, ATA DISK drive

hdc is the one giving me problems.

The kernel is automatically disableing DMA for all IDE drives.

All partitions have ext3 filesystems.

I have previously had a twin WDC AC36400L in place of hdc that worked fine. At the same time I've had a seagate 8 gig drive in place of hdc that has the same problem.

hda, hdd, sda, and sdb are all involved in raid arrays (/home is on a raid5, /var and a data partition are on raid0) making it rather difficult to remove any of those drives from the system.

Things I have already tried:

- Googling the net for similar issues
- new ide cable
- switching hdc and hdd - problem follows the physical drive
- booting with ide=nodma option (anyone know if mandrake has the ide driver built in or if its a module? no matter what I issue to lilo DMA is still enabled for both ide0 and ide1 and the kernel later disables dma for all 4 ide drives)
- removing hdb and moving hdd to hdb (to get hdc on its own chain)
- kernel versions 2.4.21-0.13mdk and 2.6.3-7mdk

output of lspci:

via-agp : VIA Technologies|VT82C598 [Apollo MVP3] [BRIDGE_HOST]
unknown : VIA Technologies|VT82C598 [Apollo MVP3 AGP] [BRIDGE_PCI]
unknown : VIA Technologies|VT82C586/A/B PCI-to-ISA [Apollo VP] [BRIDGE_ISA]
unknown : VIA Technologies|VT82C586 IDE [Apollo] [STORAGE_IDE]
unknown : VIA Technologies|VT82C586B ACPI [BRIDGE_OTHER]
ne2k-pci : Realtek|RTL-8029(AS) [NETWORK_ETHERNET]
dc395x_trm : Tekram|TRM-S1040 [STORAGE_SCSI]
Card:Voodoo Banshee (generic): 3Dfx Interactive, Inc.|Voodoo Banshee [DISPLAY_VGA]

Any suggestions or insight is very welcome.


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Reading specific memory blocks with C++ genderbender Programming 4 12-23-2007 05:24 PM
Help working on a script to search for specific data. oracle11112 Programming 26 05-28-2005 07:00 PM
assign new data partition to specific users wycolorado Linux - Newbie 2 01-01-2005 09:53 PM
Mozilla locks up system hard on new Fedora install tbyers31 Fedora 4 02-05-2004 08:22 AM
Reading COM Port Data croakofonix Programming 1 06-11-2003 04:17 PM > Forums > Linux Forums > Linux - Hardware

All times are GMT -5. The time now is 06:56 PM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration