linux-kernel - Re: NFS OOps - kernel BUG at fs/nfs/nfs3xdr.c:1338

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Date:	Tue, 18 Jan 2011 19:15:15 +0100
From:	Milan Broz <mbroz@...hat.com>
To:	Chuck Lever <Chuck.Lever@...cle.com>
CC:	Trond Myklebust <Trond.Myklebust@...app.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-nfs@...r.kernel.org
Subject: Re: NFS OOps  - kernel BUG at fs/nfs/nfs3xdr.c:1338

On 01/18/2011 04:59 PM, Chuck Lever wrote:

>>> [  105.327979] kernel BUG at fs/nfs/nfs3xdr.c:1338!
> 
> Milan, I assume the install command is trying to set an ACL on an NFS file.  Can you tell us what the ACL looks like?

Hi,

strace returns
fsetxattr(4, "system.posix_acl_access", "\x02\x00\x00\x00\x01\x00\x06\x00\xff\xff\xff\xff\x04\x00\x00\x00\xff\xff\xff\xff \x00\x00\x00\xff\xff\xff\xff", 28, 0) = -1 EOPNOTSUPP (Operation not supported)

and it is reproducible with simple code:
        int fd = open("x", O_RDWR|O_CREAT, S_IRWXU);
        fsetxattr(fd, "system.posix_acl_access",
        "\x02\x00\x00\x00\x01\x00\x06\x00\xff\xff\xff\xff\x04\x00\x00\x00\xff\xff\xff\xff \x00\x00\x00\xff\xff\xff\xff", 28, 0);

Milan
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