AIX7.2: test-fcntl fails when run via AIX make with -j

AIX7.2: test-fcntl fails when run via AIX make with -j

[Bernhard Voelker]

I notice that 'test-fcntl' fails on AIX7.2 when run from AIX make with any -j value,
but succeeds if run both without -j or when run via gmake.
Reproducer:

Export 'fcntl' module into a tarball, and transfer it to the AIX7.2 host.

  $ ./gnulib-tool --create-testdir --dir=/tmp/gl-fcntl --single-configure fcntl \
      && cd /tmp \
      && tar -zcf gl-fcntl.tar.gz gl-fcntl \
      && scp -p gl-fcntl.tar.gz gcc119.fsffrance.org:

Logon there.

  $ ssh gcc119.fsffrance.org

Go away from ksh.

  $ exec bash --login

Build the 'fcntl' module.

  $ gzip -d -c - < gl-fcntl.tar.gz \
      | tar -xf - \
      && cd gl-fcntl \
      && ./configure && make

Run tests with -j4 --> test-fcntl fails:

  $ make -j4 check
  ...
  FAIL: test-fcntl
  ...

  $ cat gltests/test-fcntl.log
  FAIL test-fcntl (exit status: 42)

Run tests without -j --> test-fcntl succeeds:

  make check
  ...
  PASS: test-fcntl
  ...

Funny thing is: it fails even with -j1:

  $ make -j1 check
  ...
  FAIL: test-fcntl
  ...

Finally: no problems with gmake:

  $ gmake -j4 check
  ...
  PASS: test-fcntl
  ...

Is this worth investigating/fixing?

Have a nice day,
Berny

Re: AIX7.2: test-fcntl fails when run via AIX make with -j

[Bruno Haible]

Bernhard Voelker wrote:
> I notice that 'test-fcntl' fails on AIX7.2 when run from AIX make with any -j value,
> but succeeds if run both without -j or when run via gmake.
> ...
> Funny thing is: it fails even with -j1:
> 
>   $ make -j1 check
>   ...
>   FAIL: test-fcntl
>   ...
> 
> Finally: no problems with gmake:
> 
>   $ gmake -j4 check
>   ...
>   PASS: test-fcntl
>   ...
> 
> Is this worth investigating/fixing?

test-fcntl is not the only test that fails:

$ cat test-fcntl.log
FAIL test-fcntl (exit status: 42)

$ cat test-execute.sh.log
test-execute-main: test-execute-child subprocess failed
Test case 14: 0 1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 
../../gltests/test-execute-main.c:295: assertion 'ret == 0' failed
../../gltests/test-execute.sh[5]: 34603272 IOT/Abort trap(coredump)
test-execute.sh: test case 14 failed
Test case 15: 0 1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 
../../gltests/test-execute-main.c:305: assertion 'ret == 0' failed
../../gltests/test-execute.sh[5]: 34603274 IOT/Abort trap(coredump)
test-execute.sh: test case 15 failed
Test case 16: 0 1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 
../../gltests/test-execute-main.c:315: assertion 'ret == 0' failed
../../gltests/test-execute.sh[5]: 29098616 IOT/Abort trap(coredump)
test-execute.sh: test case 16 failed
../../gltests/test-execute-main.c:387: assertion 'fd_out >= 0 && fd_out < 10' failed
../../gltests/test-execute.sh[5]: 19398982 IOT/Abort trap(coredump)
test-execute.sh: test case 19 failed
FAIL test-execute.sh (exit status: 1)

This indicates that all processes inherit many open file descriptors
(at least, all from 4 to 19). This explains the failures.

Nothing to worry about.

Bruno

Re: AIX7.2: test-fcntl fails when run via AIX make with -j

[Bernhard Voelker]

On 1/7/21 3:04 AM, Bruno Haible wrote:
> This indicates that all processes inherit many open file descriptors
> (at least, all from 4 to 19). This explains the failures.
> 
> Nothing to worry about.

Great, thanks!