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  #1  
Old 23rd June 2011, 10:45 PM
ObsoleteAcey Offline
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linuxfedorafirefox
Problems with slow USB transfer

Since i started using the FC14 kernels (i was still on the last FC13 kernel before FC14 came out until recently due to a problem with the FC14 kernels making my PC run laggy) my USB transfer speeds have plummeted. Previously I could get 10-20k/s transfer to my external USB drive (same as with my Windows Vista install), but now I will be lucky to get over 3k/s. Other anomalies have crept in to USB file transfer as well. Sometimes when writing small amounts of files that are in themselves not big, there is a huge delay between when KDE reports they have been written to USB and when they actually have been written. They appear in the file manager as being there but they are not actually there for some number of seconds/minutes later.

Now i did read somewhere that if you disable legacy support USB speed goes back to normal. However when i do this i loose access to my USB mouse and keyboard. Also, Windows works just fine with legacy support enabled. The transfers can also regularly lock my computer up for sometimes minutes.

Has anyone else been experiencing terrible USB throughput since upgrading to FC14?
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  #2  
Old 24th June 2011, 08:17 AM
lystor Offline
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linuxfirefox
Re: Problems with slow USB transfer

Hi
Mount USB device and show us mount output:
Code:
# mount
Are there any kernel errors on /var/log/messages?
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  #3  
Old 24th June 2011, 09:56 PM
ObsoleteAcey Offline
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linuxchrome
Re: Problems with slow USB transfer

hey lystor! thanks for your reply. here is the mount output with just the external HDD plugged in

Code:
/dev/mapper/vg_galaxy-lv_root on / type ext4 (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
tmpfs on /dev/shm type tmpfs (rw,rootcontext="system_u:object_r:tmpfs_t:s0")
/dev/sda5 on /boot type ext4 (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
none on /proc/fs/vmblock/mountPoint type vmblock (rw)
sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
fusectl on /sys/fs/fuse/connections type fusectl (rw)
gvfs-fuse-daemon on /home/stefan/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=stefan)
/dev/sda4 on /media/DATA type fuseblk (rw,nosuid,nodev,allow_other,blksize=4096,default_permissions)
/dev/sda3 on /media/ACER type fuseblk (rw,nosuid,nodev,allow_other,blksize=4096,default_permissions)
/dev/sdf1 on /media/STEFAN type fuseblk (rw,nosuid,nodev,allow_other,blksize=512,default_permissions)
mtpfs on /media/a500 type fuse.mtpfs (rw,noexec,nosuid,nodev,allow_other,user=stefan)
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  #4  
Old 24th June 2011, 09:58 PM
ObsoleteAcey Offline
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linuxchrome
Re: Problems with slow USB transfer

and it does look like there were some issues during a file copy to a USB drive yesterday (see log output below)

Code:
Jun 24 10:48:11 Galaxy kernel: [335865.028905] usb 1-8: new high speed USB device using ehci_hcd and address 14
Jun 24 10:48:12 Galaxy kernel: [335866.059874] usb 1-8: New USB device found, idVendor=05dc, idProduct=a781
Jun 24 10:48:12 Galaxy kernel: [335866.059878] usb 1-8: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Jun 24 10:48:12 Galaxy kernel: [335866.059881] usb 1-8: Product: JD FireFly
Jun 24 10:48:12 Galaxy kernel: [335866.059883] usb 1-8: Manufacturer: Lexar
Jun 24 10:48:12 Galaxy kernel: [335866.059884] usb 1-8: SerialNumber: AA04020400014786
Jun 24 10:48:12 Galaxy kernel: [335866.071874] scsi15 : usb-storage 1-8:1.0
Jun 24 10:48:13 Galaxy kernel: [335867.148529] scsi 15:0:0:0: Direct-Access     Lexar    JD FireFly       1100 PQ: 0 ANSI: 0 CCS
Jun 24 10:48:13 Galaxy kernel: [335867.150511] sd 15:0:0:0: Attached scsi generic sg7 type 0
Jun 24 10:48:13 Galaxy kernel: [335867.268946] sd 15:0:0:0: [sdg] 7831552 512-byte logical blocks: (4.00 GB/3.73 GiB)
Jun 24 10:48:13 Galaxy kernel: [335867.295962] sd 15:0:0:0: [sdg] Write Protect is off
Jun 24 10:48:13 Galaxy kernel: [335867.295969] sd 15:0:0:0: [sdg] Assuming drive cache: write through
Jun 24 10:48:13 Galaxy kernel: [335867.453968] sd 15:0:0:0: [sdg] Assuming drive cache: write through
Jun 24 10:48:13 Galaxy kernel: [335867.453991]  sdg: sdg1
Jun 24 10:48:13 Galaxy kernel: [335867.629888] sd 15:0:0:0: [sdg] Assuming drive cache: write through
Jun 24 10:48:13 Galaxy kernel: [335867.629895] sd 15:0:0:0: [sdg] Attached SCSI removable disk
Jun 24 10:52:44 Galaxy kernel: [336138.645310] sr 2:0:0:0: [sr0] Unhandled sense code
Jun 24 10:52:44 Galaxy kernel: [336138.645314] sr 2:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Jun 24 10:52:44 Galaxy kernel: [336138.645319] sr 2:0:0:0: [sr0] Sense Key : Medium Error [current] 
Jun 24 10:52:44 Galaxy kernel: [336138.645324] Info fld=0x19f550
Jun 24 10:52:44 Galaxy kernel: [336138.645327] sr 2:0:0:0: [sr0] Add. Sense: Id CRC or ECC error
Jun 24 10:52:44 Galaxy kernel: [336138.645332] sr 2:0:0:0: [sr0] CDB: Read(10): 28 00 00 19 f5 4a 00 00 40 00
Jun 24 10:52:44 Galaxy kernel: [336138.645344] end_request: I/O error, dev sr0, sector 6804800
Jun 24 10:52:44 Galaxy kernel: [336138.645349] Buffer I/O error on device sr0, logical block 1701200
Jun 24 10:52:45 Galaxy kernel: [336138.645353] Buffer I/O error on device sr0, logical block 1701201
Jun 24 10:52:45 Galaxy kernel: [336138.645360] Buffer I/O error on device sr0, logical block 1701202
Jun 24 10:52:45 Galaxy kernel: [336138.645364] Buffer I/O error on device sr0, logical block 1701203
Jun 24 10:52:45 Galaxy kernel: [336138.645368] Buffer I/O error on device sr0, logical block 1701204
Jun 24 10:52:45 Galaxy kernel: [336138.645381] Buffer I/O error on device sr0, logical block 1701205
Jun 24 10:52:45 Galaxy kernel: [336138.645386] Buffer I/O error on device sr0, logical block 1701206
Jun 24 10:52:45 Galaxy kernel: [336138.645390] Buffer I/O error on device sr0, logical block 1701207
Jun 24 10:52:45 Galaxy kernel: [336138.645394] Buffer I/O error on device sr0, logical block 1701208
Jun 24 10:52:45 Galaxy kernel: [336139.102727] sr 2:0:0:0: [sr0] Unhandled sense code
Jun 24 10:52:45 Galaxy kernel: [336139.102731] sr 2:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Jun 24 10:52:45 Galaxy kernel: [336139.102736] sr 2:0:0:0: [sr0] Sense Key : Medium Error [current] 
Jun 24 10:52:45 Galaxy kernel: [336139.102742] Info fld=0x19f550
Jun 24 10:52:45 Galaxy kernel: [336139.102744] sr 2:0:0:0: [sr0] Add. Sense: Id CRC or ECC error
Jun 24 10:52:45 Galaxy kernel: [336139.102750] sr 2:0:0:0: [sr0] CDB: Read(10): 28 00 00 19 f5 50 00 00 02 00
Jun 24 10:52:45 Galaxy kernel: [336139.102761] end_request: I/O error, dev sr0, sector 6804800
Jun 24 10:52:49 Galaxy kernel: [336142.913800] sr 2:0:0:0: [sr0] Unhandled sense code
Jun 24 10:52:49 Galaxy kernel: [336142.913806] sr 2:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Jun 24 10:52:49 Galaxy kernel: [336142.913811] sr 2:0:0:0: [sr0] Sense Key : Medium Error [current] 
Jun 24 10:52:49 Galaxy kernel: [336142.913817] Info fld=0x19f600
Jun 24 10:52:49 Galaxy kernel: [336142.913819] sr 2:0:0:0: [sr0] Add. Sense: Id CRC or ECC error
Jun 24 10:52:49 Galaxy kernel: [336142.913825] sr 2:0:0:0: [sr0] CDB: Read(10): 28 00 00 19 f5 fa 00 00 10 00
Jun 24 10:52:49 Galaxy kernel: [336142.913836] end_request: I/O error, dev sr0, sector 6805504
Jun 24 10:52:49 Galaxy kernel: [336143.256832] sr 2:0:0:0: [sr0] Unhandled sense code
Jun 24 10:52:49 Galaxy kernel: [336143.256837] sr 2:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Jun 24 10:52:49 Galaxy kernel: [336143.256842] sr 2:0:0:0: [sr0] Sense Key : Medium Error [current] 
Jun 24 10:52:49 Galaxy kernel: [336143.256847] Info fld=0x19f60a
Jun 24 10:52:49 Galaxy kernel: [336143.256848] sr 2:0:0:0: [sr0] Add. Sense: Id CRC or ECC error
Jun 24 10:52:49 Galaxy kernel: [336143.256853] sr 2:0:0:0: [sr0] CDB: Read(10): 28 00 00 19 f6 0a 00 00 10 00
Jun 24 10:52:49 Galaxy kernel: [336143.256860] end_request: I/O error, dev sr0, sector 6805544
Jun 24 10:52:49 Galaxy kernel: [336143.561747] sr 2:0:0:0: [sr0] Unhandled sense code
Jun 24 10:52:49 Galaxy kernel: [336143.561756] sr 2:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Jun 24 10:52:49 Galaxy kernel: [336143.561759] sr 2:0:0:0: [sr0] Sense Key : Medium Error [current] 
Jun 24 10:52:49 Galaxy kernel: [336143.561762] Info fld=0x19f600
Jun 24 10:52:49 Galaxy kernel: [336143.561763] sr 2:0:0:0: [sr0] Add. Sense: Id CRC or ECC error
Jun 24 10:52:49 Galaxy kernel: [336143.561767] sr 2:0:0:0: [sr0] CDB: Read(10): 28 00 00 19 f6 00 00 00 02 00
Jun 24 10:52:49 Galaxy kernel: [336143.561774] end_request: I/O error, dev sr0, sector 6805504
Jun 24 10:52:50 Galaxy kernel: [336143.866692] sr 2:0:0:0: [sr0] Unhandled sense code
Jun 24 10:52:50 Galaxy kernel: [336143.866695] sr 2:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Jun 24 10:52:50 Galaxy kernel: [336143.866698] sr 2:0:0:0: [sr0] Sense Key : Medium Error [current] 
Jun 24 10:52:50 Galaxy kernel: [336143.866702] Info fld=0x19f600
Jun 24 10:52:50 Galaxy kernel: [336143.866703] sr 2:0:0:0: [sr0] Add. Sense: Id CRC or ECC error
Jun 24 10:52:50 Galaxy kernel: [336143.866707] sr 2:0:0:0: [sr0] CDB: Read(10): 28 00 00 19 f6 00 00 00 02 00
Jun 24 10:52:50 Galaxy kernel: [336143.866714] end_request: I/O error, dev sr0, sector 6805504
Jun 24 10:52:50 Galaxy kernel: [336143.866718] quiet_error: 79 callbacks suppressed
Jun 24 10:52:50 Galaxy kernel: [336143.866721] Buffer I/O error on device sr0, logical block 1701376
Jun 24 10:52:50 Galaxy kernel: [336143.866724] Buffer I/O error on device sr0, logical block 1701377
Jun 24 10:52:51 Galaxy kernel: [336144.936357] sr 2:0:0:0: [sr0] Unhandled sense code
Jun 24 10:52:51 Galaxy kernel: [336144.936361] sr 2:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Jun 24 10:52:51 Galaxy kernel: [336144.936366] sr 2:0:0:0: [sr0] Sense Key : Medium Error [current] 
Jun 24 10:52:51 Galaxy kernel: [336144.936372] Info fld=0x19f6f0
Jun 24 10:52:51 Galaxy kernel: [336144.936375] sr 2:0:0:0: [sr0] Add. Sense: Id CRC or ECC error
Jun 24 10:52:51 Galaxy kernel: [336144.936380] sr 2:0:0:0: [sr0] CDB: Read(10): 28 00 00 19 f6 f0 00 00 02 00
Jun 24 10:52:51 Galaxy kernel: [336144.936392] end_request: I/O error, dev sr0, sector 6806464
Jun 24 10:52:51 Galaxy kernel: [336144.936397] Buffer I/O error on device sr0, logical block 1701616
Jun 24 10:52:51 Galaxy kernel: [336144.936402] Buffer I/O error on device sr0, logical block 1701617
Jun 24 10:53:02 Galaxy kernel: [336156.011004] sr 2:0:0:0: [sr0] Unhandled sense code
Jun 24 10:53:02 Galaxy kernel: [336156.011008] sr 2:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Jun 24 10:53:02 Galaxy kernel: [336156.011013] sr 2:0:0:0: [sr0] Sense Key : Medium Error [current] 
Jun 24 10:53:02 Galaxy kernel: [336156.011018] Info fld=0x1a0450
Jun 24 10:53:02 Galaxy kernel: [336156.011021] sr 2:0:0:0: [sr0] Add. Sense: Id CRC or ECC error
Jun 24 10:53:02 Galaxy kernel: [336156.011026] sr 2:0:0:0: [sr0] CDB: Read(10): 28 00 00 1a 04 50 00 00 02 00
Jun 24 10:53:02 Galaxy kernel: [336156.011048] end_request: I/O error, dev sr0, sector 6820160
Jun 24 10:53:02 Galaxy kernel: [336156.011054] Buffer I/O error on device sr0, logical block 1705040
Jun 24 10:53:02 Galaxy kernel: [336156.011060] Buffer I/O error on device sr0, logical block 1705041
Jun 24 10:53:04 Galaxy kernel: [336158.047471] sr 2:0:0:0: [sr0] Unhandled sense code
Jun 24 10:53:04 Galaxy kernel: [336158.047475] sr 2:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
I will be upgrading to FC15 in a few days, so hopefully this won't be as much of a disaster as the FC14 upgrade was
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  #5  
Old 25th June 2011, 12:54 AM
dd_wizard Offline
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linuxfirefox
Re: Problems with slow USB transfer

Aren't all your errors in that log from sr0? So the USB device is an optical drive, or you're having trouble reading from sr0 and writing to sdg?

dd_wizard
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  #6  
Old 25th June 2011, 04:25 AM
DBelton Offline
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Posts: 7,318
linuxfirefox
Re: Problems with slow USB transfer

I was wondering the same thing as dd_wizard.

The USB drive is enumerated as /dev/sdg
All of the errors in your log are for /dev/sr0 which is a cd/dvd drive.

If you were copying from the cd/dvd drive to your usb drive, then the issues seem to be with your cd/dvd drive and not your usb drive. and from the looks of the errors, it is probably a problem with whatever cd/dvd is in the drive.
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  #7  
Old 26th June 2011, 01:21 PM
ObsoleteAcey Offline
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Sorry I must have copied the wrong part of the log. I'll post something from a recent transfer. No it doesn't matter where I copy the file from its always slow. It may be kde related as using gnome it seems to be ok

Sent from my HTC Hero using Tapatalk
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