LinuxQuestions.org
Support LQ: Use code LQ3 and save $3 on Domain Registration
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie
User Name
Password
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!

Notices



Reply
 
Search this Thread
Old 05-07-2004, 12:38 AM   #1
randomi
LQ Newbie
 
Registered: May 2004
Location: CT
Distribution: Gentoo
Posts: 2

Rep: Reputation: 0
External USB2 Drive: Large File Transfer Stalls


Hello, and apologies ahead of time for what looks like a relatively common question.
However, I was unable to find any suitable answer which fit my situation precisely. I have an external Maxtor OneTouch Drive (120gb) formatted in fat32. I am able to mount the drive fine using
Code:
mount -r /mnt/sda1 /mnt/usb
(used -r in case write was part of problem), and copying small files works without incident, but when copying large files, the speed drops and then the drive is no longer detected by the system.
The drive does seem to be using
Code:
ehci_hcd
, so I don't think its simply usb1.1 being used instead of 2. Any and all help appreciated, thank you ahead of time, and I will gladly post more info as requested.

~ri

Relevant parts in /var/log/messages:

Code:
May  6 22:25:10 randomi ehci_hcd 0000:00:10.3: VIA Technologies, Inc. USB 2.0
May  6 22:25:10 randomi ehci_hcd 0000:00:10.3: irq 21, pci mem e1813000
May  6 22:25:10 randomi ehci_hcd 0000:00:10.3: new USB bus registered, assigned bus number 1
May  6 22:25:10 randomi ehci_hcd 0000:00:10.3: USB 2.0 enabled, EHCI 1.00, driver 2003-Dec-29
May  6 22:25:10 randomi hub 1-0:1.0: USB hub found
May  6 22:25:10 randomi hub 1-0:1.0: 6 ports detected
May  6 22:25:10 randomi USB Universal Host Controller Interface driver v2.2
...
(using gentoo with love-sources 2.6.6-rc3)
Code:
May  6 22:25:10 randomi Vendor: Maxtor    Model: OneTouch          Rev: 0200
May  6 22:25:10 randomi Type:   Direct-Access                      ANSI SCSI revision: 02
May  6 22:25:10 randomi SCSI device sda: 240119808 512-byte hdwr sectors (122941 MB)
May  6 22:25:10 randomi sda: assuming drive cache: write through
Update: After trying several different solutions, had friend hook up drive to his windows machine. Got some of the files off, but it turns out that drive had quite a bit of corruption. Score: Linux 1, Maxtor 0

Last edited by randomi; 05-13-2004 at 05:30 PM.
 
Old 05-07-2004, 03:50 AM   #2
Electro
Guru
 
Registered: Jan 2002
Posts: 6,042

Rep: Reputation: Disabled
I get the same problem with a different USB brand but I think it is mostly a problem with the usb module or a buffer overflow problem in the kernel. It could be a problem when LINUX is trying to defrag some files to make the drive more efficient. I just ignore it because it did not corrupt any data during the process. For USB storage device I use the sync option to make sure the data that I have written to the USB device is not waiting in the buffer.

I have not done large file copies to my USB hard drives for a while. What does dmesg show.
 
Old 05-07-2004, 07:15 AM   #3
randomi
LQ Newbie
 
Registered: May 2004
Location: CT
Distribution: Gentoo
Posts: 2

Original Poster
Rep: Reputation: 0
Thank you for your fast response. All sections seemingly relevant from dmesg are below.
Code:
ehci_hcd 0000:00:10.3: irq 21, pci mem e1813000
ehci_hcd 0000:00:10.3: new USB bus registered, assigned bus number 1
ehci_hcd 0000:00:10.3: USB 2.0 enabled, EHCI 1.00, driver 2003-Dec-29
hub 1-0:1.0: USB hub found
...
Code:
ehci_hcd 0000:00:10.3: VIA Technologies, Inc. USB 2.0
ehci_hcd 0000:00:10.3: irq 21, pci mem e1813000
ehci_hcd 0000:00:10.3: new USB bus registered, assigned bus number 1
ehci_hcd 0000:00:10.3: USB 2.0 enabled, EHCI 1.00, driver 2003-Dec-29
...
Code:
Initializing USB Mass Storage driver...
usbcore: registered new driver usb-storage
USB Mass Storage support registered.
....
Code:
usb 1-1: new high speed USB device using address 2
scsi0 : SCSI emulation for USB Mass Storage devices
  Vendor: Maxtor    Model: OneTouch          Rev: 0200
  Type:   Direct-Access                      ANSI SCSI revision: 02
SCSI device sda: 240119808 512-byte hdwr sectors (122941 MB)
sda: assuming drive cache: write through
 /dev/scsi/host0/bus0/target0/lun0: p1
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 0, lun 0,  type 0
USB Mass Storage device found at 2

Last edited by randomi; 05-07-2004 at 07:17 AM.
 
Old 08-20-2004, 03:57 AM   #4
parikkala
LQ Newbie
 
Registered: Aug 2004
Posts: 1

Rep: Reputation: 0
Maybe there is something more up to it since I have encountered the same problem you mentioned in Suse Linux 9.1 AND Windows XP Home Edition. Under Windows I have tried to install a bunch of different devide drivers by different companies without any luck...

In fact I think it is an issue related in some way with the NEC usb2 pci card because my mother has the same problem on his computer with the same expansion card as me but not without the onboard usb2.

Any opinion?

Thanks
Bye
Antonio
 
  


Reply


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
Installing Fedora 4 on an laptop's external USB2 hard drive? Raveolution Fedora 13 12-23-2005 03:55 AM
USB2 External drive... Sirkent Debian 2 12-19-2004 08:23 PM
Updatedb is crashing my usb2 external drive turls Linux - Hardware 1 12-06-2004 08:52 AM
installing on usb2 external drive, kernel panics zed13 Linux - Newbie 3 08-25-2004 09:41 PM
Large file transfer hang adrielus Linux - Networking 0 12-21-2003 07:50 PM


All times are GMT -5. The time now is 01:12 AM.

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