My Comment #84 was a wee bit to quick - sorry. I had wrong (interpreted)
timestamps in the kernel log, so I saw log records seemingly from yesterday,
but they are from today !
So I had to continue experimenting, and this command (which you could run for
every boot) should detach the device, hence power it off and you avoid the
flooding of messages:
udisks --detach /dev/sdb
where sdb is the device causing the messages:
[Sat Nov 15 23:58:58 2014] sd 5:0:0:0: [sdb] Assuming drive cache: write
through
[Sat Nov 15 23:59:49 2014] sd 5:0:0:0: [sdb] Test WP failed, assume Write
Enabled
[Sat Nov 15 23:59:49 2014] sd 5:0:0:0: [sdb] Asking for cache data failed
If you are unsure of which devices you have 'available' there's several tools
available, but these seems to be informative:
udisks --enumerate-device-files
udisks --show-info /dev/<your device, like sdb for me>
and also
lsusb -v
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https://bugs.launchpad.net/bugs/925760
Title:
Constant warnings from the kernel: Test WP failed, assume Write
Enabled
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