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Re: commit cfafcd117 "futex: Rework futex_lock_pi() to use rt_mutex_*_proxy_lock()" causes glibc nptl/tst-robustpi8 failure

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On Wed, May 17, 2017 at 07:36:46PM +0200, Markus Trippelsdorf wrote:
> Since:
> commit cfafcd117da0216520568c195cb2f6cd1980c4bb
> Author: Peter Zijlstra <peterz@infradead.org>
> Date:   Wed Mar 22 11:35:58 2017 +0100
> 
>     futex: Rework futex_lock_pi() to use rt_mutex_*_proxy_lock()
> 
> glibc's nptl/tst-robustpi8 testcase fails:
> 
> glibc-build % ./nptl/tst-robustpi8
> tst-robustpi8: ../nptl/pthread_mutex_lock.c:424: __pthread_mutex_lock_full: Assertion `INTERNAL_SYSCALL_ERRNO (e, __err) != ESRCH || !robust' failed.

OK, so how do I get those tests build?

I did a checkout of glibc.git

glibc$ mkdir build; cd build
build$ ../configure --disable-sanity-checks ; make -j40
build$ ./nptl/tst-robustpi8
-bash: ./nptl/tst-robustpi8: No such file or directory

"make tests" doesn't seem to work either even though its a build target
listed in the Makefiles.

What magic incantation do I need?

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commit cfafcd117 "futex: Rework futex_lock_pi() to use  rt_mutex_*_proxy_lock()" causes glibc nptl/tst-robustpi8 failure Markus Trippelsdorf <markus@trippelsdorf.de> - 2017-05-17 19:40 +0200
  Re: commit cfafcd117 "futex: Rework futex_lock_pi() to use  rt_mutex_*_proxy_lock()" causes glibc nptl/tst-robustpi8 failure Florian Weimer <fweimer@redhat.com> - 2017-05-17 20:00 +0200
    Re: commit cfafcd117 "futex: Rework futex_lock_pi() to use  rt_mutex_*_proxy_lock()" causes glibc nptl/tst-robustpi8 failure Peter Zijlstra <peterz@infradead.org> - 2017-05-18 08:50 +0200
      Re: commit cfafcd117 "futex: Rework futex_lock_pi() to use  rt_mutex_*_proxy_lock()" causes glibc nptl/tst-robustpi8 failure Peter Zijlstra <peterz@infradead.org> - 2017-05-18 09:00 +0200
  Re: commit cfafcd117 "futex: Rework futex_lock_pi() to use  rt_mutex_*_proxy_lock()" causes glibc nptl/tst-robustpi8 failure Peter Zijlstra <peterz@infradead.org> - 2017-05-18 09:50 +0200
    Re: commit cfafcd117 "futex: Rework futex_lock_pi() to use  rt_mutex_*_proxy_lock()" causes glibc nptl/tst-robustpi8 failure Markus Trippelsdorf <markus@trippelsdorf.de> - 2017-05-18 10:10 +0200
      Re: commit cfafcd117 "futex: Rework futex_lock_pi() to use  rt_mutex_*_proxy_lock()" causes glibc nptl/tst-robustpi8 failure Peter Zijlstra <peterz@infradead.org> - 2017-05-18 10:20 +0200
    Re: commit cfafcd117 "futex: Rework futex_lock_pi() to use  rt_mutex_*_proxy_lock()" causes glibc nptl/tst-robustpi8 failure Florian Weimer <fweimer@redhat.com> - 2017-05-18 10:20 +0200
      Re: commit cfafcd117 "futex: Rework futex_lock_pi() to use  rt_mutex_*_proxy_lock()" causes glibc nptl/tst-robustpi8 failure Florian Weimer <fweimer@redhat.com> - 2017-05-18 10:40 +0200
        Re: commit cfafcd117 "futex: Rework futex_lock_pi() to use  rt_mutex_*_proxy_lock()" causes glibc nptl/tst-robustpi8 failure Peter Zijlstra <peterz@infradead.org> - 2017-05-18 10:50 +0200
          Re: commit cfafcd117 "futex: Rework futex_lock_pi() to use  rt_mutex_*_proxy_lock()" causes glibc nptl/tst-robustpi8 failure Florian Weimer <fweimer@redhat.com> - 2017-05-18 10:50 +0200
        Re: commit cfafcd117 "futex: Rework futex_lock_pi() to use  rt_mutex_*_proxy_lock()" causes glibc nptl/tst-robustpi8 failure Peter Zijlstra <peterz@infradead.org> - 2017-05-18 13:50 +0200
          Re: commit cfafcd117 "futex: Rework futex_lock_pi() to use  rt_mutex_*_proxy_lock()" causes glibc nptl/tst-robustpi8 failure Peter Zijlstra <peterz@infradead.org> - 2017-05-18 14:40 +0200
        Re: commit cfafcd117 "futex: Rework futex_lock_pi() to use  rt_mutex_*_proxy_lock()" causes glibc nptl/tst-robustpi8 failure Peter Zijlstra <peterz@infradead.org> - 2017-05-19 17:50 +0200
          Re: commit cfafcd117 "futex: Rework futex_lock_pi() to use  rt_mutex_*_proxy_lock()" causes glibc nptl/tst-robustpi8 failure Peter Zijlstra <peterz@infradead.org> - 2017-05-19 18:10 +0200
          Re: commit cfafcd117 "futex: Rework futex_lock_pi() to use  rt_mutex_*_proxy_lock()" causes glibc nptl/tst-robustpi8 failure Markus Trippelsdorf <markus@trippelsdorf.de> - 2017-05-19 19:40 +0200
          [tip:locking/urgent] futex,rt_mutex: Fix  rt_mutex_cleanup_proxy_lock() tip-bot for Peter Zijlstra <tipbot@zytor.com> - 2017-05-22 22:10 +0200
      Re: commit cfafcd117 "futex: Rework futex_lock_pi() to use  rt_mutex_*_proxy_lock()" causes glibc nptl/tst-robustpi8 failure Peter Zijlstra <peterz@infradead.org> - 2017-05-18 10:40 +0200

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