[Bug 349767] Re: external USB hard drive disconnects

[Herco van Brug]

i have random usb harddisk disconnects too. what i'm seeing is when i
copy several GB of data to it, it will stop working after a while
(several minutes), show this in the /var/log/messages:

May 30 08:56:21 eeepc kernel: [28603.462424] usb 1-3: USB disconnect, address 66
May 30 08:56:28 eeepc kernel: [28610.304144] usb 1-3: new high speed USB device using ehci_hcd and address 67
May 30 08:56:28 eeepc kernel: [28610.449760] usb 1-3: configuration #1 chosen from 1 choice
May 30 08:56:28 eeepc kernel: [28610.452094] scsi49 : SCSI emulation for USB Mass Storage devices
May 30 08:56:33 eeepc kernel: [28615.452975] scsi 49:0:0:0: Direct-Access     SAMSUNG  HM250JI               PQ: 0 ANSI: 2 CCS
May 30 08:56:33 eeepc kernel: [28615.457023] sd 49:0:0:0: Attached scsi generic sg2 type 0
May 30 08:56:33 eeepc kernel: [28615.468424] sd 49:0:0:0: [sdaf] 488397168 512-byte logical blocks: (250 GB/232 GiB)
May 30 08:56:33 eeepc kernel: [28615.470035] sd 49:0:0:0: [sdaf] Write Protect is off
May 30 08:56:33 eeepc kernel: [28615.471819]  sdaf: sdaf1
May 30 08:56:33 eeepc kernel: [28616.155880] sd 49:0:0:0: [sdaf] Attached SCSI disk
May 30 09:07:47 eeepc kernel: [29289.325424] usb 1-3: USB disconnect, address 67
May 30 09:07:53 eeepc kernel: [29295.813083] usb 1-3: new high speed USB device using ehci_hcd and address 68
May 30 09:07:53 eeepc kernel: [29295.961819] usb 1-3: configuration #1 chosen from 1 choice
May 30 09:07:53 eeepc kernel: [29295.962887] scsi50 : SCSI emulation for USB Mass Storage devices
May 30 09:07:58 eeepc kernel: [29300.961156] scsi 50:0:0:0: Direct-Access     SAMSUNG  HM250JI               PQ: 0 ANSI: 2 CCS
May 30 09:07:58 eeepc kernel: [29300.969111] sd 50:0:0:0: Attached scsi generic sg2 type 0
May 30 09:07:58 eeepc kernel: [29300.970691] sd 50:0:0:0: [sdag] 488397168 512-byte logical blocks: (250 GB/232 GiB)
May 30 09:07:58 eeepc kernel: [29300.971556] sd 50:0:0:0: [sdag] Write Protect is off
May 30 09:07:59 eeepc kernel: [29300.973984]  sdag: sdag1
May 30 09:07:59 eeepc kernel: [29301.576354] sd 50:0:0:0: [sdag] Attached SCSI disk
May 30 09:08:31 eeepc kernel: [29333.974797] usb 1-3: USB disconnect, address 68
May 30 09:08:48 eeepc kernel: [29350.240135] usb 1-3: new high speed USB device using ehci_hcd and address 69
May 30 09:08:48 eeepc kernel: [29350.600147] usb 1-3: new high speed USB device using ehci_hcd and address 70
May 30 09:08:48 eeepc kernel: [29350.742977] usb 1-3: configuration #1 chosen from 1 choice
May 30 09:08:48 eeepc kernel: [29350.745284] scsi51 : SCSI emulation for USB Mass Storage devices
May 30 09:08:48 eeepc kernel: [29350.894418] usb 1-3: USB disconnect, address 70
May 30 09:08:56 eeepc kernel: [29358.756137] usb 1-3: new high speed USB device using ehci_hcd and address 71
May 30 09:08:56 eeepc kernel: [29358.905855] usb 1-3: configuration #1 chosen from 1 choice
May 30 09:08:56 eeepc kernel: [29358.908400] scsi52 : SCSI emulation for USB Mass Storage devices
May 30 09:09:01 eeepc kernel: [29363.909172] scsi 52:0:0:0: Direct-Access     SAMSUNG  HM250JI               PQ: 0 ANSI: 2 CCS
May 30 09:09:01 eeepc kernel: [29363.920525] sd 52:0:0:0: Attached scsi generic sg2 type 0
May 30 09:09:01 eeepc kernel: [29363.922779] sd 52:0:0:0: [sdah] 488397168 512-byte logical blocks: (250 GB/232 GiB)
May 30 09:09:01 eeepc kernel: [29363.923934] sd 52:0:0:0: [sdah] Write Protect is off
May 30 09:09:02 eeepc kernel: [29363.925800]  sdah: sdah1
May 30 09:09:02 eeepc kernel: [29364.606965] sd 52:0:0:0: [sdah] Attached SCSI disk

and mount the disk under a new mountpoint under /media with an
additional underscore. the above log is somewhere in the middle of a
large amount of disconnects/reconnects; it show the partition
(/dev/sdc1) as sdaf1.

i think is is a USB driver bug since i never had this problem with 9.10.
it's not just harddisks though. i also have usb remote controls that
when plugged in, crash the usb driver and even the whole system
sometimes (reproducible, no log messages, never happend in 9.10). i dont
know if i should report that as another bug as it's most likely due to
the usb driver.

-- 
external USB hard drive disconnects
https://bugs.launchpad.net/bugs/349767
You received this bug notification because you are a member of Kernel
Bugs, which is subscribed to linux in ubuntu.