[Qemu-devel] [Bug 1771570] [NEW] qemu-aarch64 $program > $file doesn't pipe output to file in 2.12.0

[Qemu-devel] [Bug 1771570] [NEW] qemu-aarch64 $program > $file doesn't pipe output to file in 2.12.0

[Juho Hiltunen]

Public bug reported:

Running qemu-aarch64 $program > $file doesn't pipe anything to $file.
The file is created but empty.

qemu-aarch64 --help > $file works, so piping output in my system seems to work.
qemu-x86_64 $program > $file works, too.

I'm running version 2.12.0 build from source with ./configure && make

Output of uname -a:
Linux zhostname>  4.4.0-101-generic #124-Ubuntu SMP Fri Nov 10 18:29:59 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

** Affects: qemu
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1771570

Title:
  qemu-aarch64 $program  > $file doesn't pipe output to file in 2.12.0

Status in QEMU:
  New

Bug description:
  Running qemu-aarch64 $program > $file doesn't pipe anything to $file.
  The file is created but empty.

  qemu-aarch64 --help > $file works, so piping output in my system seems to work.
  qemu-x86_64 $program > $file works, too.

  I'm running version 2.12.0 build from source with ./configure && make

  Output of uname -a:
  Linux zhostname>  4.4.0-101-generic #124-Ubuntu SMP Fri Nov 10 18:29:59 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

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[Qemu-devel] [Bug 1771570] Re: qemu-aarch64 $program > $file doesn't pipe output to file in 2.12.0

[Juho Hiltunen]

Running "unbuffer qemu-aarch64 $program > $file" allows to pipe the
output.

Is it intentional that I need to disable buffering to allow piping to
other processes? If yes, this issue can be closed.

further reading about unbuffer:
https://unix.stackexchange.com/questions/25372/turn-off-buffering-in-
pipe#25378

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https://bugs.launchpad.net/bugs/1771570

Title:
  qemu-aarch64 $program  > $file doesn't pipe output to file in 2.12.0

Status in QEMU:
  New

Bug description:
  Running qemu-aarch64 $program > $file doesn't pipe anything to $file.
  The file is created but empty.

  qemu-aarch64 --help > $file works, so piping output in my system seems to work.
  qemu-x86_64 $program > $file works, too.

  I'm running version 2.12.0 build from source with ./configure && make

  Output of uname -a:
  Linux zhostname>  4.4.0-101-generic #124-Ubuntu SMP Fri Nov 10 18:29:59 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

To manage notifications about this bug go to:
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[Qemu-devel] [Bug 1771570] Re: qemu-aarch64 $program > $file doesn't pipe output to file in 2.12.0

[Peter Maydell]

No, this should work on qemu-aarch64 the same way as for x86. I just
tried redirection to a file with a sample program, and it worked fine
for me. Can you provide a test case binary that fails like this, please?

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1771570

Title:
  qemu-aarch64 $program  > $file doesn't pipe output to file in 2.12.0

Status in QEMU:
  New

Bug description:
  Running qemu-aarch64 $program > $file doesn't pipe anything to $file.
  The file is created but empty.

  qemu-aarch64 --help > $file works, so piping output in my system seems to work.
  qemu-x86_64 $program > $file works, too.

  I'm running version 2.12.0 build from source with ./configure && make

  Output of uname -a:
  Linux zhostname>  4.4.0-101-generic #124-Ubuntu SMP Fri Nov 10 18:29:59 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

To manage notifications about this bug go to:
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[Qemu-devel] [Bug 1771570] Re: qemu-aarch64 $program > $file doesn't pipe output to file in 2.12.0

[Juho Hiltunen]

This issue is now marked as invalid, sorry for the trouble.

qemu works just fine. The problem was with my linker configuration, it
was using a different dynamic library for aarch64. Switching to a
standard development stack solved my problem.

** Changed in: qemu
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1771570

Title:
  qemu-aarch64 $program  > $file doesn't pipe output to file in 2.12.0

Status in QEMU:
  Invalid

Bug description:
  Running qemu-aarch64 $program > $file doesn't pipe anything to $file.
  The file is created but empty.

  qemu-aarch64 --help > $file works, so piping output in my system seems to work.
  qemu-x86_64 $program > $file works, too.

  I'm running version 2.12.0 build from source with ./configure && make

  Output of uname -a:
  Linux zhostname>  4.4.0-101-generic #124-Ubuntu SMP Fri Nov 10 18:29:59 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1771570/+subscriptions