linux-ext4 - Re: [PATCH] e2fsck: Correct ext4 dates generated by old kernels

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Date:	Sun, 6 Mar 2016 22:43:31 -0500
From:	Theodore Ts'o <tytso@....edu>
To:	Andreas Dilger <adilger@...ger.ca>
Cc:	linux-ext4@...r.kernel.org, David Turner <novalis@...alis.org>
Subject: Re: [PATCH] e2fsck: Correct ext4 dates generated by old kernels

On Thu, Feb 18, 2016 at 12:57:56PM -0700, Andreas Dilger wrote:
> From: David Turner <novalis@...alis.org>
> 
> Older kernels on 64-bit machines would incorrectly encode pre-1970
> ext4 dates as post-2311 dates.  Detect and correct this (assuming the
> current date is before 2242).
> 
> Includes tests for this, as well as changes to debugfs to correctly
> set crtimes.
> 
> Signed-off-by: David Turner <novalis@...alis.org>
> 
> - ext2_fs.h: declare EXT4_EPOCH_BITS/EXT4_EPOCH_MASK like the kernel
> 	instead of in a separate header in an unusual location
> - problem.h: move PR_1_EA_TIME_OUT_OF_RANGE to avoid master conflict
> - problem.c: fix PR_1_EA_TIME_OUT_OF_RANGE PR_*_OK flag usage
> - f_pre_1970_date_encoding/script: run debugfs less often,
> 	use $MKE2FS instead of mkfs.ext4, fit within 80 columns
> 
> Signed-off-by: Andreas Dilger <adilger@...ger.ca>

This patch is reporting test failures for the new
f_pre_1970_date_encoding.  Can you please take a look?

Thanks,

			       	   	       	 - Ted

--- /usr/projects/e2fsprogs/e2fsprogs/tests/f_pre_1970_date_encoding/expect	2016-03-07 03:17:46.268647450 +0000
+++ f_pre_1970_date_encoding.timestamps.log	2016-03-07 03:20:52.067405831 +0000
@@ -1,45 +1,45 @@
 times for year-1909 =
- ctime: 0x8e475440:00000003
- atime: 0x8e475440:00000003
- mtime: 0x8e475440:00000003
-crtime: 0x8e475440:00000003
+ ctime: 0x71b8abc0:00000003
+ atime: 0x71b8abc0:00000003
+ mtime: 0x71b8abc0:00000003
+crtime: 0x71b8abc0:00000003
 times for year-1979 =
- ctime: 0x11db6940:00000000
- atime: 0x11db6940:00000000
- mtime: 0x11db6940:00000000
-crtime: 0x11db6940:00000000
+ ctime: 0x05efa740:00000000
+ atime: 0x05efa740:00000000
+ mtime: 0x05efa740:00000000
+crtime: 0x05efa740:00000000
 times for year-2039 =
- ctime: 0x82a37b40:00000001
- atime: 0x82a37b40:00000001
- mtime: 0x82a37b40:00000001
-crtime: 0x82a37b40:00000001
+ ctime: 0x0b6de740:00000001
+ atime: 0x0b6de740:00000001
+ mtime: 0x0b6de740:00000001
+crtime: 0x0b6de740:00000001
 times for year-2139 =
- ctime: 0x3e9b9940:00000001
- atime: 0x3e9b9940:00000001
- mtime: 0x3e9b9940:00000001
-crtime: 0x3e9b9940:00000001
+ ctime: 0x1495a740:00000001
+ atime: 0x1495a740:00000001
+ mtime: 0x1495a740:00000001
+crtime: 0x1495a740:00000001
 times for year-1909 =
- ctime: 0x8e475440:00000000
- atime: 0x8e475440:00000000
- mtime: 0x8e475440:00000000
-crtime: 0x8e475440:00000000
+ ctime: 0x71b8abc0:00000003
+ atime: 0x71b8abc0:00000003
+ mtime: 0x71b8abc0:00000003
+crtime: 0x71b8abc0:00000003
 times for year-1979 =
- ctime: 0x11db6940:00000000
- atime: 0x11db6940:00000000
- mtime: 0x11db6940:00000000
-crtime: 0x11db6940:00000000
+ ctime: 0x05efa740:00000000
+ atime: 0x05efa740:00000000
+ mtime: 0x05efa740:00000000
+crtime: 0x05efa740:00000000
 times for year-2039 =
- ctime: 0x82a37b40:00000001
- atime: 0x82a37b40:00000001
- mtime: 0x82a37b40:00000001
-crtime: 0x82a37b40:00000001
+ ctime: 0x0b6de740:00000001
+ atime: 0x0b6de740:00000001
+ mtime: 0x0b6de740:00000001
+crtime: 0x0b6de740:00000001
 times for year-2139 =
- ctime: 0x3e9b9940:00000001
- atime: 0x3e9b9940:00000001
- mtime: 0x3e9b9940:00000001
-crtime: 0x3e9b9940:00000001
+ ctime: 0x1495a740:00000001
+ atime: 0x1495a740:00000001
+ mtime: 0x1495a740:00000001
+crtime: 0x1495a740:00000001
 times for year-1909 =
- ctime: 0x8e475440:00000003
- atime: 0x8e475440:00000003
- mtime: 0x8e475440:00000003
-crtime: 0x8e475440:00000003
+ ctime: 0x71b8abc0:00000003
+ atime: 0x71b8abc0:00000003
+ mtime: 0x71b8abc0:00000003
+crtime: 0x71b8abc0:00000003
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