Commit Graph

133 Commits (624e4a6466dba9889f5f80dc168f2bb7c2a3f5d0)

Author SHA1 Message Date
Aditya Kali 624e4a6466 e2fsck: add support for checking the built-in quota files
This patch adds support for doing quota accounting during full
e2fsck scan if the 'quota' feature was set on the superblock.
If user-visible quota inodes are in use, they will be hidden
and converted to the reserved quota inodes.

Signed-off-by: Aditya Kali <adityakali@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2011-08-31 16:31:13 -04:00
Theodore Ts'o a3efe48420 e2fsck: fix mysterious "FILE SYSTEM WAS MODIFIED" with no changes
Commit 2a77a784a3 (firest released in e2fsprogs 1.33) compared
superblock summary free blocks and inode counts with the allocation
bitmap counts before starting the file system check proper, and if
they differed, set the superblock and marked it as dirty.  If no other
file systme changes were required, this would cause a "*** FILE SYSTEM
WAS MODIFIED ***" message without any explanation of what e2fsck had
changed.

We fix this by only setting the superblock summary free block/inodes
counts if we are skipping a full check, and in non-preen mode, e2fsck
will now print an explicit message stating how the superblock had been
updated.

In a full check, any updates to the superblock free blocks/inodes
fields will be noted in pass5.

This change requires changing a few test results (essentially
reversing the changes made in commit 2a77a784a3).

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-06-16 01:22:02 -04:00
Theodore Ts'o 44fe08f1fa e2fsck: add basic bigalloc support to check (but not yet repair) file systems
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-06-10 18:58:16 -04:00
Theodore Ts'o 7599038836 e2fsck: Add the ability to force a problem to not be fixed
The boolean options "force_no" in the problems stanza of e2fsck.conf
allows a particular problem code be treated as if the user will answer
"no" to the question of whether a particular problem should be fixed
--- even if e2fsck is run with the -y option.

As an example use case, suppose a distribution had widely deployed a
version of the kernel where under some circumstances, the EOFBLOCKS_FL
flag would be left set even though it should not be left set, and a
customer had a workload which exercised the fencepost error all the
time, resulting in many large number of inodes that had EOFBLOCKS_FL
set erroneously.  Enough, in fact, the e2fsck runs were taking too
long.  (There was such a bug in the kernel, which was fixed by commit
58590b06d in 2.6.36).

Leaving EOFBLOCKS_FL set when it should not be isn't a huge deal, and
is certainly than having high availability timeout alerts going off
left and right.  So in this case, the best fix might be to put the
following in /etc/e2fsck.conf:

[problems]
0x010060 = {			# PR_1_EOFBLOCKS_FL_SET
	 force_no = true
	 no_ok = true
	 no_nomsg = true
}

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2010-12-06 10:10:33 -05:00
Theodore Ts'o 177839e245 e2fsck: Skip time-based checks if the time looks insane or broken_system_clock
There are broken embedded devices that have system clocks that always
reset to January 1, 1970 whenever they boot (even if no power is
lost).  There are also systems that have super cheap clock crystals
that can be very inaccurate.  So if the option broken_system_clock is
given, disable all time based checks.  E2fsck will also try to detect
incorrect system clock times, and automatically mark the system clock
as insane.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2010-05-13 17:36:36 -04:00
Theodore Ts'o a6217f5ae2 e2fsck: Fix a number of problems that were inappropriately using PROMPT_ABORT
There were a number of problems that were prompting the user whether
or not to ABORT, but then would abort regardless of whether the user
answered yes or no.  Change those to be PROMPT_NONE, PR_FATAL.

Also, fix PR_1_RESIZE_INODE_CREATE so that it recovers appropriately
after failing to create the resize inode.  This problem now uses
PROMPT_CONTINUE instead of PROMPT_ABORT, and if the user says, "no",
the code will abort.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2010-05-12 18:58:53 -04:00
Theodore Ts'o 2291fbb035 e2fsck: Check for cases where EOFBLOCKS_FL is unnecessarily set
Some kernels will crash if EOFBLOCKS_FL is set when it is it not
needed, and this if it is left set when it isn't needed, it is a sign
of a kernel bug.

Addresses-Google-Bug: #2604224

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2010-05-10 10:29:14 -04:00
Theodore Ts'o c70674387e e2fsck: Add new e2fsck.conf option: broken_system_clock
The broken_system_clock allows the time to be in the future when in
preen mode.  It's useful for people who have, as the name implies,
broken system clocks.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2010-01-04 13:59:04 -05:00
Theodore Ts'o ba5131f6d4 e2fsck: Accept superblock times to be fudged by up to 24 hours by default
Unfortunately, due to Windows' unfortunate design decision to
configure the hardware clock to tick localtime, instead of the more
proper and less error-prone UTC time, many users end up in the
situation where the system clock is incorrectly set at the time when
e2fsck is run.

Historically this was usually due to some distributions having buggy
init scripts and/or installers that didn't correctly detect this case
and take appropriate countermeasures.  However, it's still possible,
despite the best efforts of init script and installer authors to not
be able to detect this misconfiguration, usually due to a buggy or
misconfigured virtualization manager or the installer not having
access to a network time server during the installation process.  So
by default, we allow the superblock times to be fudged by up to 24
hours.  This can be disabled by setting options.accept_time_fudge to
the boolean value of false in e2fsck.conf.  The old
options.buggy_init_scripts is left for backwards compatibility.

Since we are now accepting the 24 hour time fudge by default, there is
no longer a need to install an Ubuntu-specific e2fsck.conf file, so we
can remove it.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2009-10-16 20:59:20 -04:00
Theodore Ts'o 695706ca21 e2fsck: Interpret negative blkcount in file system problem reports
Non-expert users get confused when they see messages like this:

Illegal block #-1 (2291965952) in inode 176. CLEARED.

So change it to be something a little bit more understandable:

Illegal indirect block (2291965952) in inode 176.  CLEARED.

Addresses-SourceForge-Bug: #2871782

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2009-10-04 18:02:24 -04:00
Theodore Ts'o 6013915487 e2fsck: Add a global latch question for bad group descriptor checksums
Very often all the block group descriptors will have bad checksums, so
don't force the user answer 'yes' many, many times.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2009-08-19 01:06:50 -04:00
Theodore Ts'o fe26a55ac9 e2fsck: Fix and enhance superblock dates in future problem reports
Fixed a bug where e2fsck would report that last mount time was in the
future when it was really the last write time that was in the future.

Also, since people can't seem to believe that (a) their distribution
has buggy init scripts, or (b) their CMOS/RTC clock or backup battery
is dead, print the incorrect time and the current system time.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2009-08-08 10:14:48 -04:00
Theodore Ts'o 26ea4899d1 e2fsck: Fix superblock times in the future even if buggy_init_scripts=1
Unfortunately, distributions like Ubuntu seem to have buggy init
scripts that run e2fsck and mount the root filesystem before making
sure the system time and time zone is correctly set.  As a result, a
filesystem's last write and last mounted time can be set in future.
The buggy_init_scripts configuration option will stop e2fsck from
aborting the boot process, but it also inhibits the superblock times
from getting fixed.  This causes resize2fs to refuse to resize the
filesystem, even after running e2fsck on the file system.  To deal
with this, we need to fix the superblock write times unconditionally.

Addresses-Launchpad-bug: #373409

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2009-07-16 23:44:50 -04:00
Theodore Ts'o b6bb99feb9 e2fsck: if i_file_acl_hi is non-zero, fix it and don't abort e2fsck -p
Ext3 filesystems don't care if i_file_acl_hi is non-zero in some
inode, and newer kernels should ignore this field (although 2.6.29 and
older kernels will not).  So e2fsck should fix this without aborting
an e2fsck preen operation.

Addresses-Debian-Bug: #526524

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2009-05-28 17:05:40 -04:00
Andreas Dilger ae33f578c0 e2fsck: cleanup whitespace in problem.c and problem.h
Cleanup whitespace in the problem.h and problem.c files.  Removes a
bunch of places where tabs follow spaces, whitespace on empty lines, etc.
I didn't reformat the indenting of the entire problem.h error codes,
but there is some room for doing this...

Signed-off-by: Andreas Dilger <adilger@sun.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2009-05-02 21:10:45 -04:00
Andreas Dilger 7494cbfd59 e2fsck: Add test code in problem.c to verify problem codes
We've hit a number of cases where the error codes in problem.h have
been assigned duplicate values compared to problems in our own e2fsck
patches, and this can lead to confusing and difficult to find bugs
in e2fsck (e.g. wrong problem messages, incorrect repair action, etc).

Attached is a test case for the problem.c file to ensure that the
problem table is sorted and does not contain any duplicate values.
Having the problem table sorted allows the correctness checking to be
very simple, and if it ever became important for performance we could
use binary searching of the problem table for the specific problem code.

Signed-off-by: Andreas Dilger <adilger@sun.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2009-05-02 21:10:44 -04:00
Theodore Ts'o 911ec62615 e2fsck: On a 32-bit filesystem, make sure i_file_acl_high is zero
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2009-04-23 21:31:16 -04:00
Theodore Ts'o cf9fbcccbc e2fsck: Add missing newlines when reporting errors in pass 3A
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2009-01-26 16:41:46 -05:00
Theodore Ts'o 206d2ade6e e2fsck: Change PR_3_CREATE_LPF_ERROR to be a non-fatal problem
The other problem codes associated with failing to create the
lost+found directory are non-fatal, and this one should be non-fatal
as well.  The two places which call e2fsck_get_lost_and_found()
already deal with a failure to create the directory, so there's no
point making this be a fatal error.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2009-01-22 16:05:29 -05:00
Theodore Ts'o dd04d05f70 e2fsck: Remove "ext3" from problem descriptions of the journal
The ext4 filesystem uses journals too, so remove "ext3" from the
problem descriptions involving journals.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2009-01-01 23:10:40 -05:00
Theodore Ts'o 7518c17686 e2fsck: Fix an unhandled corruption case in scan_extent_node()
A corrupted interior node in an extent tree would cause e2fsck to
crash with the error message:

Error1: Corrupt extent header on inode 107192
Aborted (core dumped)

Handle this and related failures when scanning an inode's extent tree
more robustly.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-12-25 22:42:38 -05:00
Theodore Ts'o 80875db58a e2fsck: Offer to clear the test_fs flag if ext4 is available
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-10-12 23:12:23 -04:00
Theodore Ts'o 4758835c28 e2fsck: Print the correct inode number for uninit-bg related problem reports
Fix the reporting for problem codes PR_2_INOREF_BG_INO_UNINIT and
PR_2_INOREF_IN_UNUSED.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-10-12 23:12:22 -04:00
Theodore Ts'o 4efd17cccb e2fsck: Don't print the PO header when printing problems with PROMPT_NULL
A few e2fsck problem messages supply their own prompt, and set a
prompt value of PROMPT_NULL.  We have to check for this case, and not
pass the null string to _(), since that will result in the translation
header getting printed, like this:

Run journal anywayProject-Id-Version: e2fsprogs
Report-Msgid-Bugs-To: FULL NAME <EMAIL@ADDRESS>
POT-Creation-Date: 2008-02-28 21:45-0500
PO-Revision-Date: 2006-05-23 11:12+0000
Last-Translator: Somebody32 <som32@mail.ru>
Language-Team: Russian <ru@li.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Plural-Forms: nplurals=3; plural=n%10==1 && n%100!=11 ? 0 : n%10>=2 &&
n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2;
X-Launchpad-Export-Date: 2008-05-28 00:43+0000
X-Generator: Launchpad (build Unknown)
<y>? yes

Addresses-Launchpad-Bug: #246892

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-09-07 01:35:15 -04:00
Theodore Ts'o 5dd77dbe5a Add support for with empty directory blocks in 64k blocksize filesystems
The rec_len field in the directory entry is 16 bits, so if the
filesystem is completely empty, rec_len of 0 is used to designate
65536, for the case where the directory entry takes the entire 64k
block.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-08-25 21:08:19 -04:00
Andreas Dilger e5e12db959 fix e2fsck error message for bad htree depth
Fix error message to print the depth of a corrupt htree directory.

Signed-off-by: Andreas Dilger <adilger@sun.com>
Signed-off-by: Kalpak Shah <kalpak.shah@sun.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2008-08-24 21:57:31 -04:00
Andreas Dilger ba7b0feef6 e2fsck: Change comments in problem array to match what is printed
This makes it easier to locate the problem code in question.

Signed-off-by: Andreas Dilger <adilger@sun.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-08-24 20:38:22 -04:00
Theodore Ts'o 185c4aeaf2 e2fsck: Add support to check journal checksums
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-06-06 23:38:38 -04:00
Theodore Ts'o d5a8f9a9f2 e2fsck: Detect unordered extents in an extent node
The logical block numbers must be monotonically increasing, and there
must not be any overlapping extents.  If any are found, report them as
filesystem corruption.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-06-02 20:33:30 -04:00
Theodore Ts'o db0691b555 Fix trailing whitespace in e2fsck/problem.[ch]
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-03-31 14:28:38 -04:00
Andreas Dilger 0d5439c8e0 e2fsck: Add check to enforce a valid block bitmap in last block group
Add a check for the UNINIT_BLOCKS flag set in the last group.  The kernel
patch doesn't handle this gracefully, because it assumes there are a full
set of blocks in each group marked UNINIT_BLOCKS.  The kernel should be
fixed up, but in the meantime this avoids hitting the problem, and is
more consistent with lazy_bg not marking the last group UNINIT.

Signed-off-by: Andreas Dilger <adilger@dilger.ca>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-03-31 14:28:38 -04:00
Jose R. Santos 49a7360ba6 Make e2fsck uninit block group aware
This patch has all the necesary pieces to open and fix filesystems created
with the uninit block group feature.

Signed-off-by: Jose R. Santos <jrs@us.ibm.com>
Signed-off-by: Andreas Dilger <adilger@clusterfs.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-03-20 15:33:12 -04:00
Theodore Ts'o ee19c902e6 e2fsck: Check for fast symlinks that have EXTENTS_FL set
These shouldn't show up in the wild, but if they do, e2fsck will offer
to clear them.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-03-13 23:13:18 -04:00
Theodore Ts'o a040a99b6c Merge branch 'maint'
Conflicts:

	lib/ext2fs/ext2_err.et.in
2008-03-13 10:53:26 -04:00
Theodore Ts'o 2a60480627 e2fsck: Use "Clear Htree" instead of "Clear" when the Htree is corrupt
Change the prompt so it is clear to the user that e2fsck will be
clearing the htree information, not the directory inode itself, when
the htree information has proven to be corrupt.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-03-13 10:44:54 -04:00
Theodore Ts'o d45edec0fb e2fsck: Handle a pass 2 "should never happen" error gracefully
Turns out a "should never happen" error can indeed happen very easily
if a directory with an htree index has an incorrect, and too-large,
i_size field.  This patch fixes this so that we handle this situation
gracefully, allowing filesystems with this error to be fixed.

In another patch I will clean up the specific problem which caused the
internal "should never happen" error from happening at all, but patch
will prevent e2fsck from crashing, and prompt the user to remove the
htree index, so it can be rebuilt again after pass 3.

Thanks to Bas van Schaik at Tetra for giving me access to his system
so this problem could be debugged.

Addresses-Launchpad-Bug: #129395

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-03-12 16:10:48 -04:00
Andreas Dilger fefaef39e0 Improve support for in-inode EA's
Add vertificaton of the in-inode EA information, and allow in-inode
EA's to have a checksum.

Signed-off-by: Andreas Dilger <adilger@clusterfs.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-02-18 21:20:26 -05:00
Theodore Ts'o 15d482ba6e e2fsck: Add support for extents
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-02-18 20:06:18 -05:00
Theodore Ts'o d006b8cee7 e2fsck: Don't mark the filesystem invalid because of time errors
If superblock mount time or last write time is in the future, and the
user refuses to fix the problem, don't mark the filesystem as being
invalid and needing to be checked.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2007-09-23 08:20:51 -04:00
Theodore Ts'o 1a191d6648 e2fsck: Detect recursive loops in @-expansions
The Turkish translation has a bug in it where it has the translation
of "E@e '%Dn' in %p (%i)" to "E@E".  This causes @E to be expanded at
@E, recursively, forever, until the stack fills up e2fsck core dumps.

Fix it by stopping after a recursive depth of 10, which is far more
than we need.

Addresses-Sourceforge-Bug: 1646081

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2007-07-02 19:04:31 -04:00
Kalpak Shah 5107d0d196 Recreate journal that had been removed previously due to corruption
If the journal had been removed because it was corrupt, the
E2F_FLAG_JOURNAL_INODE flag will be set.  If this flag is set, then
recreate the filesystem after checking the filesystem.

Signed-off-by: Kalpak Shah <kalpak@clusterfs.com>
Signed-off-by: Andreas Dilger <adilger@clusterfs.com>
2007-06-21 11:59:06 -04:00
Theodore Ts'o fbc3f90194 e2fsck: Recover a special file which looks an awful lot like a directory
This is probably only useful in artificial test cases, but it will be
useful if we ever do the "inodes in directory" idea for ext4.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2007-04-02 10:08:59 -04:00
Theodore Ts'o f77704e416 Add directory hashed signed/unsigned hint to superblock
The e2fsprogs and kernel implementation of directory hash tree has a
bug which causes the implementation to be dependent on whether
characters are signed or unsigned.  Platforms such as the PowerPC,
Arm, and S/390 have signed characters by default, which means that
hash directories on those systems are incompatible with hash
directories on other systems, such as the x86.

To fix this we add a new flags field to the superblock, and define two
new bits in that field to indicate whether or not the directory should
be signed or unsigned.  If the bits are not set, e2fsck and fixed
kernels will set them to the signed/unsigned value of the currently
running platform, and then respect those bits when calculating the
directory hash.  This allows compatibility with current filesystems,
as well as allowing cross-architectural compatibility.

Addresses Debian Bug: #389772

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2006-11-11 22:32:35 -05:00
Theodore Ts'o 5d17119d14 On-disk format definition for huge files
- EXT4_FEATURE_RO_COMPAT_HUGE_FILE (0x0008) - change i_blocks to be
  in units of s_blocksize units instead of 512-byte sectors, use
  l_i_frag and l_i_fsize as i_blocks_hi (could also be part of 64BIT).

E2fsck and debugfs changed to support i_blocks_hi instead of l_i_frag and
l_i_fsize.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2006-11-11 06:32:03 -05:00
Theodore Ts'o b1c52b26a4 Enhance e2fsck so it can fix external journal hint in the superblock
Check to see if the superblock hint for the external journal needs to
be updated, and if so, offer to update it.  (Addresses Debian Bug:
#355644)

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2006-03-10 15:25:59 -05:00
Theodore Ts'o 8fd98bba21 Add e2fsck problem handling to be configurable
Add the ability for the e2fsck configuration file to override the
behaviour of e2fsck when a particular filesystem problem is
encountered.  This allows reconnecting an inode to lost+found to not
stop the boot sequence, if a system administrator really badly wants
this behaviour for some specialized reason, for example.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2005-12-31 16:33:33 -05:00
Theodore Ts'o 311df05c5e Automatically fix superblock times in the future
If the superblock last mount time or last write time is in the future, fix
this automatically if e2fsck is in preeen mode, since Debian's boot sequence
bogusly doesn't set the time correctly until potentially very late in the bootup 
process, and this can cause false positives that will cause users' systems 
to fail to booting.  (Addresses Debian Bugs #343662 and #343645)

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2005-12-19 00:02:47 -05:00
Theodore Ts'o 8dceb92407 E2fsck: fix future times in the superblock's last mount or last write fields
Detect if the superblock's last mount field or last write field is in
the future, and offer to fix if so.  (Addresses Debian Bug #327580)

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2005-09-24 21:59:45 -04:00
Theodore Ts'o 49809dd863 Make e2fsck Pass 1C header consistent with the other headers
Removed the period from the Pass 1C header to make it consistent with
the other e2fsck pass headers.
2005-07-04 13:08:37 -05:00
Theodore Ts'o 7ae1983a23 Clean up e2fsck problem description messages for typo's and to make them
easier to understand (sorry, translators).

Add new @m (multiply-claimed) and @n (invalid) expansions for e2fsck
problem descriptions.

Add Dutch translation, and update French translation.

Add an explanation of how the @-expansion and %-exapansion works in 
e2fsck/problem.c to make life easier for the translators.

Synchronize and update po files.
2005-06-19 09:45:36 -04:00