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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
- 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>
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>
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>
stored in inodes into e2fsck.
There are a number of bug fixes and enhancements over the original lustre fsck
BK repository. The biggest one is that this extended attribute values must
be aligned on 4-byte boundaries.
resize_inode capability disabled, but which still have the
s_reserved_gdt_blocks field set in the superblock, or which
still have blocks in the inode #7 (the resize inode).
problem.c (PR_1_BB_FS_BLOCK, PR_1_BBINODE_BAD_METABLOCK_PROMPT):
Fix up the handling of corrupted indirect blocks in the
bad block. We now correctly handle the case where there
is an overlap between a block group descriptor or
a superblock and a bad block indirect block. In the case
where the indirect block is corrupted, we now suggest
"e2fsck -c".
superblock. E2fsck will automatically save the journal information
in the superblock if it is not there already, and will use it if the
journal inode appears to be corrupted. ext2fs_add_journal_inode()
will also save the backup information, so that new filesystems
created by mke2fs and filesystems that have journals added via
tune2fs will also have journal location written to the superblock as
well. Debugfs's logdump command has been enhanced so that it can
use the journal information in the superblock.
The debugfs man page has been improved to more fully describe the
logdump command.
Added two new functions, ext2fs_file_open2() and
ext2fs_inode_io_intern2() which take a pointer to an inode structure;
this is needed so that e2fsck and debugfs can synthesize a
fake journal inode and use it to access the journal.
a single directory block (because this is the easy case;
we don't currently check for duplicates that span
directory blocks, for now. Eventually for htree
directories we can do this by searching for all directory
blocks that have a hash overflow, and then searching the
adjacent blocks to find all other potential duplicates.)
Add additional checks to HTREE directories. We now check the count
and limit fields in the htree header, as well as assuring that the
hash table in each interior node is in ascending order. We also
check to make sure all leaf nodes are have the expected depth in
the tree.
Updated test cases to deal with all of the above.
using a non-zero hash version (i.e., half MD4 or TEA hash).
The hash version wasn't getting copied into dx_dir->hashversion and
this caused the kernel to treat all directories if they were using the
legacy hash, which was Bad.
would cause i_size to be too big), and offer to truncate the inode.
Remove old bogus i_size checks.
Add test case which tests e2fsck's handling of large sparse files.
Older e2fsck with the old(er) bogus i_size checks didn't handle
this correctly.
V2 fields are set on a V1 journal superblock, or an
internal V2 journal has s_nr_users is non-zero, clear the
entire journal superblock beyond the V1 superblock. This
fixes botched V1->V2 updates.
problem.c, problem.h (PR_0_CLEAR_V2_JOURNAL): Add new problem code.
f_bad_local_jnl: New test which tests for a V2 journal with bad
fields caused by a botched V1->V2 upgrade.
which will automatically relocate the ext3 journal from a
visible file to an invisible journal file if the
filesystem has been opened read/write.
super.c (check_super_block): Add call to e2fsck_move_ext3_journal
problem.c, problem.h (PR_0_MOVE_JOURNAL, PR_0_ERR_MOVE_JOURNAL):
Add new problem codes.
Andreas's symlink code; check_blocks() was unconditionally testing
inode_bad_map without checking to see if it existed first. Fixed
problem a different way; we now no longer check inode_bad_map at all,
since the file might not get deleted in pass 2 anyway. We move the
large file feature reconciliation code to to e2fsck_pass2(), and in
deallocate_inode() in pass2.c, we decrement the large files counter if
we're about to delete a large file.
Theodore Ts'o