On Thu, 08 Aug 2013 05:56:21 +0200, Michael Schuh
<michael.sc...@gmail.com> wrote:
H i@list,
i have a simple wuestion caused by a "device loss".
is there a special routine for unplugging usb-storage devices?
in the meaning:
may be settle some commends before unplugging the device
other than umount.
according to the handbook there ist no special routine.
unmounting should be enough and pull the USB-Devie out of the bus.
i could not find anything related by the help of the big oracle.
i have some usb-sticks that i need to write with prepared disk-images by
using dd.
two or more drives are already plugged in
and da0 is already finished, da1 or da2 still at writing.
unplugging da0 causes a CAM error and interrupts the ongoing write.
i am not sure if all writes to each different device gets stopped.
this is a reproduceable behaviour thats new to me.
see the listing below.
let me know if i can and what to do to help to further identify
and investigate this error.
iirc this happens for the first time this way.
my last upgrade before this was feb./march.
time of svn checkout was 2013-07-22 so its may be already fixed?
many thanks in advance
regards
michael
Does 'camcontrol eject <device_id>' help? It tells CAM to eject the
device. This is usefull for CD's, but maybe to for preventing errors for
USB-storage.
Ronald.
===============
ugen3.2: <Verbatim> at usbus3
umass0: <Verbatim STORE N GO, class 0/0, rev 2.10/1.10, addr 2> on usbus3
umass0: SCSI over Bulk-Only; quirks = 0x0100
umass0:8:0:-1: Attached to scbus8
da0 at umass-sim0 bus 0 scbus8 target 0 lun 0
da0: <Verbatim STORE N GO PMAP> Removable Direct Access SCSI-6 device
da0: 40.000MB/s transfers
da0: 7385MB (15124992 512 byte sectors: 255H 63S/T 941C)
da0: quirks=0x2<NO_6_BYTE>
ugen7.2: <Verbatim> at usbus7
umass1: <Verbatim STORE N GO, class 0/0, rev 2.10/1.10, addr 2> on usbus7
umass1: SCSI over Bulk-Only; quirks = 0x0100
umass1:9:1:-1: Attached to scbus9
da1 at umass-sim1 bus 1 scbus9 target 0 lun 0
da1: <Verbatim STORE N GO PMAP> Removable Direct Access SCSI-6 device
da1: 40.000MB/s transfers
da1: 7385MB (15124992 512 byte sectors: 255H 63S/T 941C)
da1: quirks=0x2<NO_6_BYTE>
(da0:umass-sim0:0:0:0): WRITE(10). CDB: 2a 00 00 02 44 80 00 00 80 00
ugen3.2: <Verbatim> at usbus3 (disconnected)
(da0:umass-sim0:0:0:0): CAM status: CCB request completed with an error
umass0: (da0:at uhub3, port 3, addr 2 (disconnected)
umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): WRITE(10). CDB: 2a 00 00 02 44 80 00 00 80 00
(da0:umass-sim0:0:0:0): CAM status: CCB request completed with an error
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): WRITE(10). CDB: 2a 00 00 02 44 80 00 00 80 00
(da0:umass-sim0:0:0:0): CAM status: CCB request completed with an error
(da0:umass-sim0:0:0:0): CAM status: CCB request completed with an error
(da0:umass-sim0:0:0:0): Error 5, Retries exhausted
(da0:umass-sim0:0:0:0): SYNCHRONIZE CACHE(10). CDB: 35 00 00 00 00 00 00
00
00 00
(da0:umass-sim0:0:0:0): CAM status: CCB request completed with an error
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): SYNCHRONIZE CACHE(10). CDB: 35 00 00 00 00 00 00
00
00 00
(da0:umass-sim0:0:0:0): CAM status: CCB request completed with an error
(da0:umass-sim0:0:0:0): Error 5, Retries exhausted
(da0:umass-sim0:0:0:0): got CAM status 0x44
(da0:umass-sim0:0:0:0): fatal error, failed to attach to device
(da0:umass-sim0:0:0:0): lost device - 0 outstanding, 5 refs
(da0:umass-sim0:0:0:0): removing device entry
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