platform_external_e2fsprogs/tests/f_illbbitmap, branch master Unnamed repository; edit this file 'description' to name the repository. e2fsck: check and fix tails of all bitmap blocks 2019-05-06T14:15:29+00:00 Theodore Ts'o tytso@mit.edu 2019-05-05T20:43:33+00:00 d0efd17a436aacda85aae86bb6dfed4226a9e0a9 Currently, e2fsck effectively checks only tail of the last inode and block bitmap in the filesystem. Thus if some previous bitmap has unset bits it goes unnoticed. Mostly these tail bits in the bitmap are ignored; however, if blocks_per_group are smaller than 8*blocksize, the multi-block allocator in the kernel can get confused when the tail bits are unset and return bogus free extent. Add support to libext2fs to check these bitmap tails when loading bitmaps (as that's about the only place which has access to the bitmap tail bits) and make e2fsck use this functionality to detect buggy bitmap tails and fix them (by rewriting the bitmaps). Reported-by: Jan Kara <jack@suse.cz> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Jan Kara <jack@suse.cz> 
Currently, e2fsck effectively checks only tail of the last inode and
block bitmap in the filesystem. Thus if some previous bitmap has unset
bits it goes unnoticed.  Mostly these tail bits in the bitmap are
ignored; however, if blocks_per_group are smaller than 8*blocksize,
the multi-block allocator in the kernel can get confused when the tail
bits are unset and return bogus free extent.

Add support to libext2fs to check these bitmap tails when loading
bitmaps (as that's about the only place which has access to the bitmap
tail bits) and make e2fsck use this functionality to detect buggy bitmap
tails and fix them (by rewriting the bitmaps).

Reported-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
e2fsck: report ext2fs_open2() and ext2fs_check_desc() errors 2012-03-22T03:40:24+00:00 Theodore Ts'o tytso@mit.edu 2012-03-22T03:40:24+00:00 010c49cf499738c7a06de13077f31f2a12ecadeb Print the actual errors returned by ext2fs_open2() and ext2fs_check_desc() before we fall back to the backup block group descriptors so that it's easier to see if there is some obscure failure that is causing e2fsck to think that it should use the backup block group descriptors. Addresses-Google-Bug: #6208183 Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> 
Print the actual errors returned by ext2fs_open2() and
ext2fs_check_desc() before we fall back to the backup block group
descriptors so that it's easier to see if there is some obscure
failure that is causing e2fsck to think that it should use the backup
block group descriptors.

Addresses-Google-Bug: #6208183

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Clean up e2fsck problem description messages for typo's and to make them 2005-06-19T13:45:36+00:00 Theodore Ts'o tytso@mit.edu 2005-06-19T13:45:36+00:00 7ae1983a2393efb92d1f6e523266aa61cfbef40f 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. 
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.
E2fsck now prints ranges in pass 5 when printing deltas in 2002-03-07T07:47:07+00:00 Theodore Ts'o tytso@mit.edu 2002-03-07T07:47:07+00:00 f122632e6bb8a51126da2c71bdb95fbcb52f51bc the block and inode bitmaps. 
the block and inode bitmaps.
Many files: 1997-10-03T17:48:10+00:00 Theodore Ts'o tytso@mit.edu 1997-10-03T17:48:10+00:00 1b6bf1759af884957234b7dce768b785f792abd0 pass*.c, super.c: Massive changes to avoid using printf and com_err routines. All diagnostic messages are now routed through the fix_problem interface. pass2.c (check_dir_block): Check for duplicate '.' and '..' entries. problem.c, problem.h: Add new problem codes PR_2_DUP_DOT and PR_2_DUP_DOT_DOT. problem.c: Added new problem codes for some of the superblock corruption checks, and for the pass header messages. ("Pass 1: xxxxx") util.c (print_resource_track): Now takes a description argument. super.c, unix.c, e2fsck.c: New files to separate out the operating-specific operations out from e2fsck.c. e2fsck.c now contains the global e2fsck context management routines, and super.c contains the "pass 0" initial validation of the superblock and global block group descriptors. pass1.c, pass2.c, pass3.c, pass4.c, pass5.c, util.c: Eliminate (nearly) all global variables and moved them to the e2fsck context structure. problem.c, problem.h: Added new problem codes PR_0_SB_CORRUPT, PR_0_FS_SIZE_WRONG, PR_0_NO_FRAGMENTS, PR_0_BLOCKS_PER_GROUP, PR_0_FIRST_DATA_BLOCK expect.1, expect.2: Updated tests to align with e2fsck problem.c changes. 
  pass*.c, super.c: Massive changes to avoid using printf and com_err
  	routines.  All diagnostic messages are now routed through the
  	fix_problem interface.
  pass2.c (check_dir_block): Check for duplicate '.' and '..' entries.
  problem.c, problem.h: Add new problem codes PR_2_DUP_DOT and
  	PR_2_DUP_DOT_DOT.
  problem.c: Added new problem codes for some of the superblock
  	corruption checks, and for the pass header messages.  ("Pass
  	1: xxxxx")
  util.c (print_resource_track): Now takes a description argument.
  super.c, unix.c, e2fsck.c: New files to separate out the
  	operating-specific operations out from e2fsck.c.  e2fsck.c now
  	contains the global e2fsck context management routines, and
  	super.c contains the "pass 0" initial validation of the
  	superblock and global block group descriptors.
  pass1.c, pass2.c, pass3.c, pass4.c, pass5.c, util.c: Eliminate
  	(nearly) all global variables and moved them to the e2fsck
  	context structure.
  problem.c, problem.h: Added new problem codes PR_0_SB_CORRUPT,
  	PR_0_FS_SIZE_WRONG, PR_0_NO_FRAGMENTS, PR_0_BLOCKS_PER_GROUP,
  	PR_0_FIRST_DATA_BLOCK
expect.1, expect.2:
  Updated tests to align with e2fsck problem.c changes.
Many files: 1997-04-29T17:48:10+00:00 Theodore Ts'o tytso@mit.edu 1997-04-29T17:48:10+00:00 521e36857227b21e7ab47b0a97f788d2af9f9717 Checked in e2fsprogs 1.08. 
  Checked in e2fsprogs 1.08.
Many files: 1997-04-29T14:53:37+00:00 Theodore Ts'o tytso@mit.edu 1997-04-29T14:53:37+00:00 1e3472c5f37ca3686dd69b079d4d02a302f5798d Checked in e2fsprogs 1.05 
  Checked in e2fsprogs 1.05
Many files: 1997-04-29T14:34:47+00:00 Theodore Ts'o tytso@mit.edu 1997-04-29T14:34:47+00:00 62c06f790c4920ec2721515e36d599751f6d4d2d Checked in e2fsprogs 1.04. 
  Checked in e2fsprogs 1.04.
Many files: 1997-04-26T14:37:06+00:00 Theodore Ts'o tytso@mit.edu 1997-04-26T14:37:06+00:00 74becf3c0a065f8d64e07ce4d31f9fe53be91d62 Checkin of e2fsprogs 1.02. 
  Checkin of e2fsprogs 1.02.
Many files: 1997-04-26T14:00:26+00:00 Theodore Ts'o tytso@mit.edu 1997-04-26T14:00:26+00:00 a418d3ad819323f871005d253f7f9ac378e78ba5 Checked in e2fsprogs 0.5c 
  Checked in e2fsprogs 0.5c