Public bug reported:
lvm.conf: If I add "a|.*|" into the regex array for the filter, it
ignores my 'sd[b-z]' exclusions and any other items (eg loop, ram) after
the [b-z].
It seems to be an issue with the use of square brackets inside the regex
in certain ways.
Eg if I use the line:
filter = [ "a|.*|", "r|.*|" ]
or
filter = [ "a|.*|", "r|loop|" ]
Then this filters _everything_ in the first example, or just loop
devices respectively... just as you would expect.
However as soon as I use something like:
filter = [ "a|.*|", "r|loop[0-9]|" ]
Then I don't get any filtering at all... except that defining _only_ the
removal filters, per:
filter = [ "r|loop[0-9]|" ]
.. and other filters of that ilk DO work as expected -- so long as I
remove the "accept-all" regex.
Even this line works as expected:
filter = [ "a|.*|", "r|sd.|" ]
-- Possibly since placing the the match-any-single-character (".") in
there changes the behaviour.
The filter currently in use works as expected and looks like:
filter = [ "r|sd[b-z]|", "r|ram[0-9]+|", "r|loop[0-9]+|", ]
-------
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=10.04
DISTRIB_CODENAME=lucid
DISTRIB_DESCRIPTION="Ubuntu 10.04.3 LTS"
-------
lvm2:
Installed: 2.02.54-1ubuntu4.1
Candidate: 2.02.54-1ubuntu4.1
Version table:
*** 2.02.54-1ubuntu4.1 0
500 http://au.archive.ubuntu.com/ubuntu/ lucid-updates/main Packages
500 http://security.ubuntu.com/ubuntu/ lucid-security/main Packages
100 /var/lib/dpkg/status
2.02.54-1ubuntu4 0
500 http://au.archive.ubuntu.com/ubuntu/ lucid/main Packages
** Affects: lvm2 (Ubuntu)
Importance: Undecided
Status: New
** Tags: lucid
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https://bugs.launchpad.net/bugs/1030667
Title:
LVM2 regex exclusion filtering applies incorrectly in some cases
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