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  1. RHEL
  2. RHEL-5667

dracut can take several minutes (+/- 30) on large systems with many disks

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      Description of problem:

      Please backport PR https://github.com/dracutdevs/dracut/pull/1450
      A customer faces kernel update slowness (more than 20 minutes) due to having tons of multipath devices hosting oracleasm file systems.

      The PR above, accepted by Upstream today, implement a basic cache for get_maj_min(), which is really necessary on large systems.

      Version-Release number of selected component (if applicable):

      RHEL7 and RHEL8 dracut

      How reproducible:

      Always, see reproducer in Upstream PR

              lnykryn@redhat.com Lukáš Nykrýn
              rhn-support-rmetrich Renaud Métrich
              Lukáš Nykrýn Lukáš Nykrýn
              RHEL CS Plumbers QE Bot RHEL CS Plumbers QE Bot
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