Well, the question is, is it still there; on Saucy (3.11.0-4-generic #9):
# grep -i taint /var/log/kern.log
Aug 26 11:34:52 major vmunix: [ 0.903410] crc_itu_t: module verification
failed: signature and/or required key missing - tainting kernel
Aug 27 11:55:01 major vmunix: [ 0.903210] crc_itu_t: module verification
failed: signature and/or required key missing - tainting kernel
Aug 28 11:44:37 major vmunix: [ 0.903483] crc_itu_t: module verification
failed: signature and/or required key missing - tainting kernel
Aug 29 11:47:56 major vmunix: [ 0.903025] crc_itu_t: module verification
failed: signature and/or required key missing - tainting kernel
that does look like the first module loaded; so we're still getting the
taint - at least it does give a clue to what's going on now.
** Changed in: linux (Ubuntu)
Status: Expired => Confirmed
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https://bugs.launchpad.net/bugs/1096497
Title:
Disabling lock debugging due to kernel taint with no apparent cause
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