[Bug 1903351] Re: ignore_eacces and ignore_erofs patches don't work properly

[Timo Aaltonen]

Hello Vincent, or anyone else affected,

Accepted procps into hirsute-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/procps/2:3.3.16-5ubuntu3.1 in a few
hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
hirsute to verification-done-hirsute. If it does not fix the bug for
you, please add a comment stating that, and change the tag to
verification-failed-hirsute. In either case, without details of your
testing we will not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: procps (Ubuntu Hirsute)
       Status: In Progress => Fix Committed

** Tags added: verification-needed verification-needed-hirsute

** Changed in: procps (Ubuntu Groovy)
       Status: In Progress => Fix Committed

** Tags added: verification-needed-groovy

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https://bugs.launchpad.net/bugs/1903351

Title:
  ignore_eacces and ignore_erofs patches don't work properly

Status in procps package in Ubuntu:
  Fix Released
Status in procps source package in Focal:
  Fix Committed
Status in procps source package in Groovy:
  Fix Committed
Status in procps source package in Hirsute:
  Fix Committed

Bug description:
  The patches used to ignore errors in containers no longer work as of
  3.3.16 due to upstream commit https://gitlab.com/procps-
  ng/procps/-/commit/7af88da373bb4d515a98ec2f0f5d56c63904f932

  The ignore_eacces patch was fuzzed and gets applied to ReadSetting, not WriteSetting
  Both patches ignore the change that rc is no longer propagated up and instead everything is trapped by:

                  if (!ignore_failure && errno != ENOENT)
                      rc = -1;

  
  Versions affected: focal+

  
  root at bfee89058713:/tmp# cat /etc/os-release 
  NAME="Ubuntu"
  VERSION="20.10 (Groovy Gorilla)"
  ID=ubuntu
  ID_LIKE=debian
  PRETTY_NAME="Ubuntu 20.10"
  VERSION_ID="20.10"
  HOME_URL="https://www.ubuntu.com/"
  SUPPORT_URL="https://help.ubuntu.com/"
  BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
  PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
  VERSION_CODENAME=groovy
  UBUNTU_CODENAME=groovy

  
  root at bfee89058713:/# dpkg -l procps
  Desired=Unknown/Install/Remove/Purge/Hold
  | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
  |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
  ||/ Name           Version           Architecture Description
  +++-==============-=================-============-=================================
  ii  procps         2:3.3.16-5ubuntu2 amd64        /proc file system utilities

  
  root at bfee89058713:/# echo "kernel.shmmax = 17179869184" > shmmax.conf
  root at bfee89058713:/# sysctl -e -p shmmax.conf; echo $?
  sysctl: setting key "kernel.shmmax": Read-only file system
  255
  root at bfee89058713:/# echo "-kernel.shmmax = 17179869184" > shmmax.conf
  root at bfee89058713:/# sysctl -e -p shmmax.conf; echo $?
  sysctl: setting key "kernel.shmmax": Read-only file system
  0

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