[Desktop-packages] [Bug 1059947] Re: xvfb-run munges stdout and stderr together

[Brad Isbell]

This bug is still present in xvfb 2:1.20.13-1ubuntu1~20.04.2.  It
prevents us from using `xvfb-run` when we need to disambiguate STDOUT
and STDERR.

I'm not familiar with the problem of autopkgtests, but is this still an
issue?  Can autopkgtests be fixed?

If we're an impasse, does it make sense to turn this into a feature
request to add a flag to change the redirection behavior?

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https://bugs.launchpad.net/bugs/1059947

Title:
  xvfb-run munges stdout and stderr together

Status in xorg-server package in Ubuntu:
  Triaged

Bug description:
  It executes the supplied command thusly:
  DISPLAY=:$SERVERNUM XAUTHORITY=$AUTHFILE "$@" 2>&1

  This should be
  DISPLAY=:$SERVERNUM XAUTHORITY=$AUTHFILE "$@"

  Leaving the caller to redirect stderr to stdout, or to supply a single
  fd at their discretion. The side effect of munging the two fd's
  together is that programs which provide structured data on stdout have
  their output streams corrupted if they, or any subprocesses they have,
  happen to write to stderr at an inopportune time.

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[Desktop-packages] [Bug 1059947] Re: xvfb-run munges stdout and stderr together

[Timo Aaltonen]

** Changed in: xorg-server (Ubuntu)
   Status: Fix Released => Triaged

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https://bugs.launchpad.net/bugs/1059947

Title:
  xvfb-run munges stdout and stderr together

Status in xorg-server package in Ubuntu:
  Triaged

Bug description:
  It executes the supplied command thusly:
  DISPLAY=:$SERVERNUM XAUTHORITY=$AUTHFILE "$@" 2>&1

  This should be
  DISPLAY=:$SERVERNUM XAUTHORITY=$AUTHFILE "$@"

  Leaving the caller to redirect stderr to stdout, or to supply a single
  fd at their discretion. The side effect of munging the two fd's
  together is that programs which provide structured data on stdout have
  their output streams corrupted if they, or any subprocesses they have,
  happen to write to stderr at an inopportune time.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1059947/+subscriptions

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[Desktop-packages] [Bug 1059947] Re: xvfb-run munges stdout and stderr together

[Launchpad Bug Tracker]

This bug was fixed in the package xorg-server - 2:1.19.4-1ubuntu2

---
xorg-server (2:1.19.4-1ubuntu2) artful; urgency=medium

  * xvfb-run: Keep redirecting stderr to stdout, autopkgtests need it.

 -- Timo Aaltonen   Wed, 11 Oct 2017 11:12:57 +0300

** Changed in: xorg-server (Ubuntu)
   Status: Confirmed => Fix Released

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You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1059947

Title:
  xvfb-run munges stdout and stderr together

Status in xorg-server package in Ubuntu:
  Fix Released

Bug description:
  It executes the supplied command thusly:
  DISPLAY=:$SERVERNUM XAUTHORITY=$AUTHFILE "$@" 2>&1

  This should be
  DISPLAY=:$SERVERNUM XAUTHORITY=$AUTHFILE "$@"

  Leaving the caller to redirect stderr to stdout, or to supply a single
  fd at their discretion. The side effect of munging the two fd's
  together is that programs which provide structured data on stdout have
  their output streams corrupted if they, or any subprocesses they have,
  happen to write to stderr at an inopportune time.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1059947/+subscriptions

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[Desktop-packages] [Bug 1059947] Re: xvfb-run munges stdout and stderr together

[Timo Aaltonen]

the source package is xorg-server

changing this would break a ton of autopkgtests that use xvfb-run which
now get errors like:

testsuiteFAIL stderr: QStandardPaths: XDG_RUNTIME_DIR not set, 
defaulting to 
 '/tmp/runtime-ubuntu'

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https://bugs.launchpad.net/bugs/1059947

Title:
  xvfb-run munges stdout and stderr together

Status in xorg-server package in Ubuntu:
  Confirmed

Bug description:
  It executes the supplied command thusly:
  DISPLAY=:$SERVERNUM XAUTHORITY=$AUTHFILE "$@" 2>&1

  This should be
  DISPLAY=:$SERVERNUM XAUTHORITY=$AUTHFILE "$@"

  Leaving the caller to redirect stderr to stdout, or to supply a single
  fd at their discretion. The side effect of munging the two fd's
  together is that programs which provide structured data on stdout have
  their output streams corrupted if they, or any subprocesses they have,
  happen to write to stderr at an inopportune time.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1059947/+subscriptions

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[Desktop-packages] [Bug 1059947] Re: xvfb-run munges stdout and stderr together

[Leon Blakey]

Any updates? This still exists 4 years later in xvfb 2:1.16.4-1 . The
only workaround is to copy the entire script locally and remove those 4
characters.

Also the package is xvfb, not xorg-server

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You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1059947

Title:
  xvfb-run munges stdout and stderr together

Status in xorg-server package in Ubuntu:
  Confirmed

Bug description:
  It executes the supplied command thusly:
  DISPLAY=:$SERVERNUM XAUTHORITY=$AUTHFILE "$@" 2>&1

  This should be
  DISPLAY=:$SERVERNUM XAUTHORITY=$AUTHFILE "$@"

  Leaving the caller to redirect stderr to stdout, or to supply a single
  fd at their discretion. The side effect of munging the two fd's
  together is that programs which provide structured data on stdout have
  their output streams corrupted if they, or any subprocesses they have,
  happen to write to stderr at an inopportune time.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1059947/+subscriptions

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[Desktop-packages] [Bug 1059947] Re: xvfb-run munges stdout and stderr together

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: xorg-server (Ubuntu)
   Status: New = Confirmed

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You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1059947

Title:
  xvfb-run munges stdout and stderr together

Status in “xorg-server” package in Ubuntu:
  Confirmed

Bug description:
  It executes the supplied command thusly:
  DISPLAY=:$SERVERNUM XAUTHORITY=$AUTHFILE $@ 21

  This should be
  DISPLAY=:$SERVERNUM XAUTHORITY=$AUTHFILE $@

  Leaving the caller to redirect stderr to stdout, or to supply a single
  fd at their discretion. The side effect of munging the two fd's
  together is that programs which provide structured data on stdout have
  their output streams corrupted if they, or any subprocesses they have,
  happen to write to stderr at an inopportune time.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1059947/+subscriptions

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