Failures on Fedora-i686, branch master

[Sergio Durigan Junior]

On Wednesday, February 04 2015, Pedro Alves wrote:

>> new FAIL: gdb.threads/attach-many-short-lived-threads.exp: iter 1: break at break_fn: 1 (the program is no longer running)
>> new FAIL: gdb.threads/attach-many-short-lived-threads.exp: iter 1: break at break_fn: 2 (the program is no longer running)
>> new FAIL: gdb.threads/attach-many-short-lived-threads.exp: iter 1: break at break_fn: 3 (the program is no longer running)
>> new FAIL: gdb.threads/attach-many-short-lived-threads.exp: iter 1: detach (the program is no longer running)
>
> Bonkers, I thought these would be completely fixed
> with 20ba1ce66d31b9dd16ed8c648f46ce32aa3a03e0.
>
> What's now odd is that this is failing already on iteration 1, with:
>
>  (gdb) kill
>  The program is not being run.
>  (gdb) file /home/gdb-buildbot/fedora-x86-64-2/fedora-i686/build/gdb/testsuite/outputs/gdb.threads/attach-many-short-lived-threads/attach-many-short-lived-threads
>  Reading symbols from /home/gdb-buildbot/fedora-x86-64-2/fedora-i686/build/gdb/testsuite/outputs/gdb.threads/attach-many-short-lived-threads/attach-many-short-lived-threads...done.
>  (gdb) attach 5159
>  Attaching to program: /home/gdb-buildbot/fedora-x86-64-2/fedora-i686/build/gdb/testsuite/outputs/gdb.threads/attach-many-short-lived-threads/attach-many-short-lived-threads, process 5159
>  warning: process 5159 is a zombie - the process has already terminated
>  ptrace: Operation not permitted.
>  (gdb) PASS: gdb.threads/attach-many-short-lived-threads.exp: iter 1: attach
>  info threads
>  No threads.
>
> The test should be fixed to detect that, but, OTOH, the test program
> sleeps for 180 seconds before exiting:
>
>   /* Long enough for all the attach/detach sequences done by the .exp
>      file.  */
>   sleep (180);
>   return 0;
> }
>
> so how come the _first_ attach already fails like that?

If you want, I can provide you access to the machine.

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Sergio
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