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[Bug 1772024] Re: linux 4.13.0-42.47 ADT test failure with linux 4.13.0-42.47 (nbd-smoke-test)

 

** No longer affects: linux (Ubuntu Cosmic)

** No longer affects: linux (Ubuntu Bionic)

** No longer affects: linux (Ubuntu Artful)

** No longer affects: linux (Ubuntu Xenial)

** No longer affects: linux (Ubuntu Trusty)

** No longer affects: linux (Ubuntu)

** Changed in: nbd (Ubuntu Artful)
       Status: Incomplete => Won't Fix

** No longer affects: nbd (Ubuntu Xenial)

** No longer affects: nbd (Ubuntu Trusty)

** Tags removed: verification-needed

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https://bugs.launchpad.net/bugs/1772024

Title:
  linux 4.13.0-42.47 ADT test failure with linux 4.13.0-42.47 (nbd-
  smoke-test)

Status in nbd package in Ubuntu:
  Fix Released
Status in nbd source package in Artful:
  Won't Fix
Status in nbd source package in Bionic:
  Fix Released
Status in nbd source package in Cosmic:
  Fix Released

Bug description:
  [Impact]
  nbd-server will crash when a client connects to it, if it was started without a server name. It may also leak fds if fork fails.

  [Test Case]
  Running the server with an empty config file and an image on the command line, and then starting a local client will crash the server. After the fix, it doesn't crash anymore, and a filesystem may be created and used after that.

  [Regression Potential]
  The fix also implies a small package change, to use quilt. It has built just fine and many tests have been run on top of those packages and no failure seemed to be the result of those userspace changes, but known failures in the kernel driver.

  
  Testing failed on:
      amd64: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-artful/artful/amd64/l/linux/20180518_040741_b3b54@/log.gz
      i386: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-artful/artful/i386/l/linux/20180518_050911_b3b54@/log.gz
      ppc64el: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-artful/artful/ppc64el/l/linux/20180518_040734_b3b54@/log.gz
      s390x: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-artful/artful/s390x/l/linux/20180518_035527_b3b54@/log.gz

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