From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#29455: backup-by-copying ACL Operation not permitted with Windows 7 and Samba Date: Sun, 26 Nov 2017 19:01:06 +0200 Message-ID: <83bmjp6kkt.fsf@gnu.org> References: Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1511715744 9851 195.159.176.226 (26 Nov 2017 17:02:24 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sun, 26 Nov 2017 17:02:24 +0000 (UTC) Cc: 29455@debbugs.gnu.org To: Shuguang Sun Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Nov 26 18:02:20 2017 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eJ0Jr-0001yQ-AM for geb-bug-gnu-emacs@m.gmane.org; Sun, 26 Nov 2017 18:02:15 +0100 Original-Received: from localhost ([::1]:57321 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eJ0Jy-0001lt-NX for geb-bug-gnu-emacs@m.gmane.org; Sun, 26 Nov 2017 12:02:22 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:43781) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eJ0Jh-0001iR-LW for bug-gnu-emacs@gnu.org; Sun, 26 Nov 2017 12:02:06 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eJ0Je-0004Oj-Ja for bug-gnu-emacs@gnu.org; Sun, 26 Nov 2017 12:02:05 -0500 Original-Received: from debbugs.gnu.org ([208.118.235.43]:50857) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1eJ0Je-0004Of-FW for bug-gnu-emacs@gnu.org; Sun, 26 Nov 2017 12:02:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1eJ0Je-0002ex-6B for bug-gnu-emacs@gnu.org; Sun, 26 Nov 2017 12:02:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 26 Nov 2017 17:02:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 29455 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 29455-submit@debbugs.gnu.org id=B29455.151171569010180 (code B ref 29455); Sun, 26 Nov 2017 17:02:02 +0000 Original-Received: (at 29455) by debbugs.gnu.org; 26 Nov 2017 17:01:30 +0000 Original-Received: from localhost ([127.0.0.1]:59538 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eJ0J8-0002e8-Ap for submit@debbugs.gnu.org; Sun, 26 Nov 2017 12:01:30 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:52614) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eJ0J7-0002dw-Je for 29455@debbugs.gnu.org; Sun, 26 Nov 2017 12:01:29 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eJ0Iz-00044T-Cr for 29455@debbugs.gnu.org; Sun, 26 Nov 2017 12:01:24 -0500 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:44320) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eJ0Iz-00044O-9Y; Sun, 26 Nov 2017 12:01:21 -0500 Original-Received: from [176.228.60.248] (port=1051 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1eJ0Iy-0001ae-Of; Sun, 26 Nov 2017 12:01:21 -0500 In-reply-to: (message from Shuguang Sun on Sun, 26 Nov 2017 22:59:33 +0800) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:140419 Archived-At: > From: Shuguang Sun > Date: Sun, 26 Nov 2017 22:59:33 +0800 > > Local: Windows 7 > GNU Emacs 27.0.50 (build 1, x86_64-w64-mingw32) of 2017-11-24 > (backup-by-copying t) > > File is on a server which is mapped as network driver in Windows 7. It seems a samba according to the SID > below. > The SDDL from file-acl is > "O:S-1-22-1-79077G:S-1-22-2-108D:P(A;;0x1e01ff;;;S-1-22-1-79077)(A;;FR;;;S-1-22-2-108)(A;;FR;;;WD)" > > After I edited the file and write it, the backup meets error: > > Debugger entered--Lisp error: (file-error "Setting ACL" "Operation not permitted" > "c:/Users/username/HOME/.emacs.d/autosave/Rfiles/!drive_i!test_fixed_IA_time.r.~2~") > set-file-acl("c:/Users/username/HOME/.emacs.d/autosave/Rfiles/!drive_i!test_fixed_IA_time.r.~2~" > "O:S-1-22-1-79077G:S-1-22-2-108D:P(A;;0x1e01ff;;;S-1-22-1-79077)(A;;FR;;;S-1-22-2-108)(A;;FR;;;WD)") > set-file-extended-attributes > ("c:/Users/username/HOME/.emacs.d/autosave/Rfiles/!drive_i!test_fixed_IA_time.r.~2~" ((acl . > "O:S-1-22-1-79077G:S-1-22-2-108D:P(A;;0x1e01ff;;;S-1-22-1-79077)(A;;FR;;;S-1-22-2-108)(A;;FR;;;WD)") > (selinux-context nil nil nil nil))) > backup-buffer-copy("i:/power/permutation_test_fixed_IA_time.r" > "c:/Users/username/HOME/.emacs.d/autosave/Rfiles/!drive_i!test_fixed_IA_time.r.~2~" 438 ((acl . > "O:S-1-22-1-79077G:S-1-22-2-108D:P(A;;0x1e01ff;;;S-1-22-1-79077)(A;;FR;;;S-1-22-2-108)(A;;FR;;;WD)") > (selinux-context nil nil nil nil))) > backup-buffer() > basic-save-buffer-2() > basic-save-buffer-1() > basic-save-buffer(t) > save-buffer(1) > funcall-interactively(save-buffer 1) > call-interactively(save-buffer nil nil) > command-execute(save-buffer) Do you have debug-on-error set to non-nil? In backup-buffer-copy the function set-file-extended-attributes is called inside with-demoted-errors, so unless debug-on-error is non-nil, the error should have been converted to a simple message, and Emacs should have felled back to set-file-modes. Why isn't this happening in your case? Also, does the following fail with SOME-FILE being a local file? M-: set-file-acl("SOME-FILE" "O:S-1-22-1-79077G:S-1-22-2-108D:P(A;;0x1e01ff;;;S-1-22-1-79077)(A;;FR;;;S-1-22-2-108)(A;;FR;;;WD)") RET