Return-Path: Received: from mfb01-md.ns.itscom.net ([175.177.155.109]:41615 "EHLO mfb01-md.ns.itscom.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S938445AbdEYWsA (ORCPT ); Thu, 25 May 2017 18:48:00 -0400 Received: from mail02-md.ns.itscom.net (mail02-md.ns.itscom.net [175.177.155.112]) by mfb01-md.ns.itscom.net (Postfix) with ESMTP id 2C0E8238257 for ; Fri, 26 May 2017 07:37:52 +0900 (JST) From: "J. R. Okajima" To: linux-nfs@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org Subject: fsetxattr(2) for ACL on nfs Date: Fri, 26 May 2017 07:37:49 +0900 Message-ID: <27179.1495751869@jrobl> Sender: linux-nfs-owner@vger.kernel.org List-ID: Since v4.12-rc1, I see an error on NFS3. $ stat -f . File: "." ID: 0 Namelen: 255 Type: nfs Block size: 32768 Fundamental block size: 32768 Blocks: Total: 248 Free: 247 Available: 234 Inodes: Total: 2048 Free: 2020 $ cp ../ro/f_src . $ rm f_src rm: remove regular file 'f_src'? y $ cp -p ../ro/f_src . cp: preserving permissions for './f_src': Permission denied (from "cp --help") -p same as --preserve=mode,ownership,timestamps --preserve[=ATTR_LIST] preserve the specified attributes (default: mode,ownership,timestamps), if possible additional attributes: context, links, xattr, all By strace, I see fsetxattr(2) for ACL returned the error. Is this an intentional behaviour? (from strace) open("../ro/f_src", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=2, ...}) = 0 open("./f_src", O_WRONLY|O_CREAT|O_EXCL, 0600) = 4 fstat(4, {st_mode=S_IFREG|0600, st_size=0, ...}) = 0 fadvise64(3, 0, 0, POSIX_FADV_SEQUENTIAL) = 0 mmap(NULL, 139264, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcb293f8000 read(3, "f\n", 131072) = 2 write(4, "f\n", 2) = 2 read(3, "", 131072) = 0 utimensat(4, NULL, {{1495750885, 0}, {1495750885, 0}}, 0) = 0 fgetxattr(3, "system.posix_acl_access", 0x7ffed40196d0, 132) = -1 ENODATA (No data available) fstat(3, {st_mode=S_IFREG|0644, st_size=2, ...}) = 0 fsetxattr(4, "system.posix_acl_access", "\x02\x00\x00\x00\x01\x00\x06\x00\xff\xff\xff\xff\x04\x00\x04\x00\xff\xff\xff\xff \x00\x04\x00\xff\xff\xff\xff", 28, 0) = -1 EACCES (Permission denied) fchmod(4, 0100644) = 0 open("/usr/lib/charset.alias", O_RDONLY|O_NOFOLLOW) = -1 ENOENT (No such file or directory) write(2, "cp: ", 4) = 4 write(2, "preserving permissions for './f_"..., 36) = 36 write(2, ": Permission denied", 19) = 19 write(2, "\n", 1) = 1 Additonally, after this error, the shutdown process stops saying nfs: server localhost not responding, still trying Does anyone know which commit causes these problems? J. R. Okajima