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Re: h8300 build failures in linux-next (in rcu code, gcc 5.x related, not limited to h8300)

From Oleg Nesterov <oleg@redhat.com>
Newsgroups linux.kernel
Subject Re: h8300 build failures in linux-next (in rcu code, gcc 5.x related, not limited to h8300)
Date 2015-08-25 19:40 +0200
Message-ID <q1qmt-4Ya-3@gated-at.bofh.it> (permalink)
References <q14P1-7rq-33@gated-at.bofh.it> <q1fr4-5Zp-11@gated-at.bofh.it> <q1noB-D2-7@gated-at.bofh.it> <q1o1j-1BK-1@gated-at.bofh.it> <q1pJL-3ZR-11@gated-at.bofh.it>
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On 08/26, Yoshinori Sato wrote:
>
> Yes.
> gcc bug #67055.
> Already fixed in trunk.

Yes, thanks a lot.

Paul, it seems that gcc actually dislikes your ec90a194a "rcu:
Create a synchronize_rcu_mult()" commit ;) rcu/sync.c was just
lucky enough to trigger the problem.

I'll try to make the fix today...

Oleg.

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Thread

h8300 build failures ijn linux-next Guenter Roeck <linux@roeck-us.net> - 2015-08-24 20:40 +0200
  Re: h8300 build failures ijn linux-next Yoshinori Sato <ysato@users.sourceforge.jp> - 2015-08-25 08:00 +0200
    Re: h8300 build failures ijn linux-next Mark Salter <msalter@redhat.com> - 2015-08-25 16:30 +0200
      Re: h8300 build failures in linux-next (in rcu code, gcc 5.x related,  not limited to h8300) Guenter Roeck <linux@roeck-us.net> - 2015-08-25 17:10 +0200
        Re: h8300 build failures in linux-next (in rcu code, gcc 5.x  related, not limited to h8300) Oleg Nesterov <oleg@redhat.com> - 2015-08-25 18:20 +0200
          Re: h8300 build failures in linux-next (in rcu code, gcc 5.x  related, not limited to h8300) Oleg Nesterov <oleg@redhat.com> - 2015-08-25 18:30 +0200
        Re: h8300 build failures in linux-next (in rcu code, gcc 5.x related, not limited to h8300) Yoshinori Sato <ysato@users.sourceforge.jp> - 2015-08-25 19:00 +0200
          Re: h8300 build failures in linux-next (in rcu code, gcc 5.x  related, not limited to h8300) Oleg Nesterov <oleg@redhat.com> - 2015-08-25 19:40 +0200
            Re: h8300 build failures in linux-next (in rcu code, gcc 5.x  related, not limited to h8300) Oleg Nesterov <oleg@redhat.com> - 2015-08-25 20:10 +0200
              Re: h8300 build failures in linux-next (in rcu code, gcc 5.x  related, not limited to h8300) Mark Salter <msalter@redhat.com> - 2015-08-25 20:20 +0200
        [PATCH] rcu: change _wait_rcu_gp() to work around gcc 67055 bug Oleg Nesterov <oleg@redhat.com> - 2015-08-25 20:50 +0200
          Re: [PATCH] rcu: change _wait_rcu_gp() to work around gcc 67055 bug "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2015-08-25 21:10 +0200
          Re: [PATCH] rcu: change _wait_rcu_gp() to work around gcc 67055 bug Oleg Nesterov <oleg@redhat.com> - 2015-08-25 21:10 +0200

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