From: Subrata Modak <subrata@linux.vnet.ibm.com>
To: Bob Liu <lliubbo@gmail.com>
Cc: Ltp-list@lists.sourceforge.net
Subject: Re: [LTP] [Bug Fix]semctl01 and shmctl01 will hang during uClinux test
Date: Sat, 03 Jul 2010 23:14:52 +0530 [thread overview]
Message-ID: <1278179092.7665.7.camel@subratamodak.linux.ibm.com> (raw)
In-Reply-To: <AANLkTikvEYeg8DZfl6Deuge9f9Lk_uhA0MuW_OP4Ve9M@mail.gmail.com>
Ok. Thanks.
Regards--
Subrata
On Fri, 2010-07-02 at 13:41 +0800, Bob Liu wrote:
> ltp test case shmctl01 and semctl01 can not execute. When press ctrl
> and c, it can not exist.
>
> --
> root:/> shmctl01
>
>
> ^Cshmctl01 0 INFO : received unexpected signal 2
> ^Cshmctl01 0 INFO : received unexpected signal 2
> --
>
> The reason is the child will unlink the pipe if pipename isn't
> NULL，which may make the parent
> waitting forever.
>
>
> Index: testcases/kernel/syscalls/ipc/semctl/semctl01.c
> ===================================================================
> --- testcases/kernel/syscalls/ipc/semctl/semctl01.c
> +++ testcases/kernel/syscalls/ipc/semctl/semctl01.c
> @@ -400,7 +400,11 @@
> if (sync_pipe_notify(sync_pipes) == -1)
> tst_brkm(TBROK, cleanup, "sync_pipe_notify failed");
>
> +#ifdef UCLINUX
> + if (sync_pipe_close(sync_pipes, NULL) == -1)
> +#else
> if (sync_pipe_close(sync_pipes, PIPE_NAME) == -1)
> +#endif
> tst_brkm(TBROK, cleanup, "sync_pipe_close failed");
>
> sops.sem_num = SEM4;
> Index: testcases/kernel/syscalls/ipc/shmctl/shmctl01.c
> ===================================================================
> --- testcases/kernel/syscalls/ipc/shmctl/shmctl01.c
> +++ testcases/kernel/syscalls/ipc/shmctl/shmctl01.c
> @@ -324,8 +324,11 @@
>
> if (sync_pipe_notify(sync_pipes) == -1)
> tst_brkm(TBROK, cleanup, "sync_pipe_notify failed");
> -
> +#ifdef UCLINUX
> + if (sync_pipe_close(sync_pipes, NULL) == -1)
> +#else
> if (sync_pipe_close(sync_pipes, PIPE_NAME) == -1)
> +#endif
> tst_brkm(TBROK, cleanup, "sync_pipe_close failed");
>
> /* do an assignement for fun */
>
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prev parent reply other threads:[~2010-07-03 17:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-02 5:41 [LTP] [Bug Fix]semctl01 and shmctl01 will hang during uClinux test Bob Liu
2010-07-03 17:44 ` Subrata Modak [this message]
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