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Subject: Re: [Problem]testOpenUpgradeLock test failed in nfsv4.0 in 5.2.0-rc7
From:   Su Yanjun <suyj.fnst@cn.fujitsu.com>
To:     <ffilzlnx@mindspring.com>
CC:     <linux-nfs@vger.kernel.org>, <linux-kernel@vger.kernel.org>
References: <a4ff6e56-09d6-1943-8d71-91eaa418bd1e@cn.fujitsu.com>
Message-ID: <f105f5a8-d38f-a58a-38d1-6b7a4df4dc9d@cn.fujitsu.com>
Date:   Mon, 8 Jul 2019 10:20:21 +0800
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Ang ping?

在 2019/7/3 9:34, Su Yanjun 写道:
> Hi Frank
>
> We tested the pynfs of NFSv4.0 on the latest version of the kernel 
> (5.2.0-rc7).
> I encountered a problem while testing st_lock.testOpenUpgradeLock. The 
> problem is now as follows:
> **************************************************
> LOCK24 st_lock.testOpenUpgradeLock : FAILURE
>            OP_LOCK should return NFS4_OK, instead got
>            NFS4ERR_BAD_SEQID
> **************************************************
> Is this normal?
>
> The case is as follows:
> Def testOpenUpgradeLock(t, env):
>     """Try open, lock, open, downgrade, close
>
>     FLAGS: all lock
>     CODE: LOCK24
>     """
>     c= env.c1
>     C.init_connection()
>     Os = open_sequence(c, t.code, lockowner="lockowner_LOCK24")
>     Os.open(OPEN4_SHARE_ACCESS_READ)
>     Os.lock(READ_LT)
>     Os.open(OPEN4_SHARE_ACCESS_WRITE)
>     Os.unlock()
>     Os.downgrade(OPEN4_SHARE_ACCESS_WRITE)
>     Os.lock(WRITE_LT)
>     Os.close()
>
> After investigation, there was an error in unlock->lock. When 
> unlocking, the lockowner of the file was not released, causing an 
> error when locking again.
> Will nfs4.0 support 1) open-> 2) lock-> 3) unlock-> 4) lock this 
> function?
>
>
>