File e2fsck-check-and-fix-tails-of-all-bitmaps.patch of Package e2fsprogs

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File e2fsck-check-and-fix-tails-of-all-bitmaps.patch of Package e2fsprogs (Revision d8f0e1e9351003e8fa23e76a764813bf)

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From 6d0b48896247dc70b16482a8ff4123d570285a2a Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Sun, 5 May 2019 16:43:33 -0400
Subject: [PATCH] e2fsck: check and fix tails of all bitmap blocks
References: bsc#1128383

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).

Index: e2fsprogs-1.43.8/e2fsck/pass5.c
===================================================================
--- e2fsprogs-1.43.8.orig/e2fsck/pass5.c
+++ e2fsprogs-1.43.8/e2fsck/pass5.c
@@ -840,6 +840,7 @@ static void check_inode_end(e2fsck_t ctx
 	ext2_filsys fs = ctx->fs;
 	ext2_ino_t	end, save_inodes_count, i;
 	struct problem_context	pctx;
+	int asked = 0;
 
 	clear_problem_context(&pctx);
 
@@ -853,11 +854,12 @@ static void check_inode_end(e2fsck_t ctx
 		return;
 	}
 	if (save_inodes_count == end)
-		return;
+		goto check_intra_bg_tail;
 
 	/* protect loop from wrap-around if end is maxed */
 	for (i = save_inodes_count + 1; i <= end && i > save_inodes_count; i++) {
 		if (!ext2fs_test_inode_bitmap(fs->inode_map, i)) {
+			asked = 1;
 			if (fix_problem(ctx, PR_5_INODE_BMAP_PADDING, &pctx)) {
 				for (; i <= end; i++)
 					ext2fs_mark_inode_bitmap(fs->inode_map,
@@ -877,6 +879,20 @@ static void check_inode_end(e2fsck_t ctx
 		ctx->flags |= E2F_FLAG_ABORT; /* fatal */
 		return;
 	}
+	/*
+	 * If the number of inodes per block group != blocksize, we
+	 * can also have a potential problem with the tail bits in
+	 * each individual inode bitmap block.  If there is a problem,
+	 * it would have been noticed when the bitmap was loaded.  And
+	 * fixing this is easy; all we need to do force the bitmap to
+	 * be written back to disk.
+	 */
+check_intra_bg_tail:
+	if (!asked && fs->flags & EXT2_FLAG_IBITMAP_TAIL_PROBLEM)
+		if (fix_problem(ctx, PR_5_INODE_BMAP_PADDING, &pctx))
+			ext2fs_mark_ib_dirty(fs);
+		else
+			ext2fs_unmark_valid(fs);
 }
 
 static void check_block_end(e2fsck_t ctx)
@@ -884,6 +900,7 @@ static void check_block_end(e2fsck_t ctx
 	ext2_filsys fs = ctx->fs;
 	blk64_t	end, save_blocks_count, i;
 	struct problem_context	pctx;
+	int asked = 0;
 
 	clear_problem_context(&pctx);
 
@@ -898,12 +915,13 @@ static void check_block_end(e2fsck_t ctx
 		return;
 	}
 	if (save_blocks_count == end)
-		return;
+		goto check_intra_bg_tail;
 
 	/* Protect loop from wrap-around if end is maxed */
 	for (i = save_blocks_count + 1; i <= end && i > save_blocks_count; i++) {
 		if (!ext2fs_test_block_bitmap2(fs->block_map,
 					       EXT2FS_C2B(fs, i))) {
+			asked = 1;
 			if (fix_problem(ctx, PR_5_BLOCK_BMAP_PADDING, &pctx)) {
 				for (; i <= end; i++)
 					ext2fs_mark_block_bitmap2(fs->block_map,
@@ -923,7 +941,19 @@ static void check_block_end(e2fsck_t ctx
 		ctx->flags |= E2F_FLAG_ABORT; /* fatal */
 		return;
 	}
+	/*
+	 * If the number of blocks per block group != blocksize, we
+	 * can also have a potential problem with the tail bits in
+	 * each individual block bitmap block.  If there is a problem,
+	 * it would have been noticed when the bitmap was loaded.  And
+	 * fixing this is easy; all we need to do force the bitmap to
+	 * be written back to disk.
+	 */
+check_intra_bg_tail:
+	if (!asked && fs->flags & EXT2_FLAG_BBITMAP_TAIL_PROBLEM) {
+		if (fix_problem(ctx, PR_5_BLOCK_BMAP_PADDING, &pctx))
+			ext2fs_mark_bb_dirty(fs);
+		else
+			ext2fs_unmark_valid(fs);
+	}
 }
-
-
-
Index: e2fsprogs-1.43.8/lib/ext2fs/ext2fs.h
===================================================================
--- e2fsprogs-1.43.8.orig/lib/ext2fs/ext2fs.h
+++ e2fsprogs-1.43.8/lib/ext2fs/ext2fs.h
@@ -196,6 +196,8 @@ typedef struct ext2_file *ext2_file_t;
 #define EXT2_FLAG_DIRECT_IO		0x80000
 #define EXT2_FLAG_SKIP_MMP		0x100000
 #define EXT2_FLAG_IGNORE_CSUM_ERRORS	0x200000
+#define EXT2_FLAG_BBITMAP_TAIL_PROBLEM	0x1000000
+#define EXT2_FLAG_IBITMAP_TAIL_PROBLEM	0x2000000
 
 /*
  * Special flag in the ext2 inode i_flag field that means that this is
Index: e2fsprogs-1.43.8/lib/ext2fs/rw_bitmaps.c
===================================================================
--- e2fsprogs-1.43.8.orig/lib/ext2fs/rw_bitmaps.c
+++ e2fsprogs-1.43.8/lib/ext2fs/rw_bitmaps.c
@@ -195,6 +195,16 @@ static errcode_t mark_uninit_bg_group_bl
 	return 0;
 }
 
+static int bitmap_tail_verify(unsigned char *bitmap, int first, int last)
+{
+	int i;
+
+	for (i = first; i <= last; i++)
+		if (bitmap[i] != 0xff)
+			return 0;
+	return 1;
+}
+
 static errcode_t read_bitmaps(ext2_filsys fs, int do_inode, int do_block)
 {
 	dgrp_t i;
@@ -203,6 +213,7 @@ static errcode_t read_bitmaps(ext2_filsy
 	errcode_t retval;
 	int block_nbytes = EXT2_CLUSTERS_PER_GROUP(fs->super) / 8;
 	int inode_nbytes = EXT2_INODES_PER_GROUP(fs->super) / 8;
+	int tail_flags = 0;
 	int csum_flag;
 	unsigned int	cnt;
 	blk64_t	blk;
@@ -317,6 +328,9 @@ static errcode_t read_bitmaps(ext2_filsy
 					EXT2_ET_BLOCK_BITMAP_CSUM_INVALID;
 					goto cleanup;
 				}
+				if (!bitmap_tail_verify(block_bitmap,
+							block_nbytes, fs->blocksize - 1))
+					tail_flags |= EXT2_FLAG_BBITMAP_TAIL_PROBLEM;
 			} else
 				memset(block_bitmap, 0, block_nbytes);
 			cnt = block_nbytes << 3;
@@ -349,6 +363,9 @@ static errcode_t read_bitmaps(ext2_filsy
 					EXT2_ET_INODE_BITMAP_CSUM_INVALID;
 					goto cleanup;
 				}
+				if (!bitmap_tail_verify(inode_bitmap,
+							inode_nbytes, fs->blocksize - 1))
+					tail_flags |= EXT2_FLAG_IBITMAP_TAIL_PROBLEM;
 			} else
 				memset(inode_bitmap, 0, inode_nbytes);
 			cnt = inode_nbytes << 3;
@@ -368,10 +385,15 @@ static errcode_t read_bitmaps(ext2_filsy
 	}
 
 success_cleanup:
-	if (inode_bitmap)
+	if (inode_bitmap) {
 		ext2fs_free_mem(&inode_bitmap);
-	if (block_bitmap)
+		fs->flags &= ~EXT2_FLAG_IBITMAP_TAIL_PROBLEM;
+	}
+	if (block_bitmap) {
 		ext2fs_free_mem(&block_bitmap);
+		fs->flags &= ~EXT2_FLAG_BBITMAP_TAIL_PROBLEM;
+	}
+	fs->flags |= tail_flags;
 	return 0;
 
 cleanup:
Index: e2fsprogs-1.43.8/tests/f_bitmaps/expect.1
===================================================================
--- e2fsprogs-1.43.8.orig/tests/f_bitmaps/expect.1
+++ e2fsprogs-1.43.8/tests/f_bitmaps/expect.1
@@ -11,6 +11,8 @@ Fix? yes
 Inode bitmap differences:  +11 -15
 Fix? yes
 
+Padding at end of inode bitmap is not set. Fix? yes
+
 
 test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
 test_filesys: 11/32 files (9.1% non-contiguous), 22/100 blocks
Index: e2fsprogs-1.43.8/tests/f_dup/expect.1
===================================================================
--- e2fsprogs-1.43.8.orig/tests/f_dup/expect.1
+++ e2fsprogs-1.43.8/tests/f_dup/expect.1
@@ -30,6 +30,8 @@ Fix? yes
 Free blocks count wrong (62, counted=60).
 Fix? yes
 
+Padding at end of inode bitmap is not set. Fix? yes
+
 Padding at end of block bitmap is not set. Fix? yes
 
 
Index: e2fsprogs-1.43.8/tests/f_dup2/expect.1
===================================================================
--- e2fsprogs-1.43.8.orig/tests/f_dup2/expect.1
+++ e2fsprogs-1.43.8/tests/f_dup2/expect.1
@@ -37,6 +37,8 @@ Fix? yes
 Free blocks count wrong (26, counted=22).
 Fix? yes
 
+Padding at end of inode bitmap is not set. Fix? yes
+
 Padding at end of block bitmap is not set. Fix? yes
 
 
Index: e2fsprogs-1.43.8/tests/f_dup3/expect.1
===================================================================
--- e2fsprogs-1.43.8.orig/tests/f_dup3/expect.1
+++ e2fsprogs-1.43.8/tests/f_dup3/expect.1
@@ -39,6 +39,8 @@ Fix? yes
 Free blocks count wrong (20, counted=19).
 Fix? yes
 
+Padding at end of inode bitmap is not set. Fix? yes
+
 
 test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
 test_filesys: 16/16 files (25.0% non-contiguous), 81/100 blocks
Index: e2fsprogs-1.43.8/tests/f_end-bitmap/expect.1
===================================================================
--- e2fsprogs-1.43.8.orig/tests/f_end-bitmap/expect.1
+++ e2fsprogs-1.43.8/tests/f_end-bitmap/expect.1
@@ -8,6 +8,8 @@ Pass 5: Checking group summary informati
 Free blocks count wrong for group #0 (44, counted=63).
 Fix? yes
 
+Padding at end of inode bitmap is not set. Fix? yes
+
 Padding at end of block bitmap is not set. Fix? yes
 
 
Index: e2fsprogs-1.43.8/tests/f_illbbitmap/expect.1
===================================================================
--- e2fsprogs-1.43.8.orig/tests/f_illbbitmap/expect.1
+++ e2fsprogs-1.43.8/tests/f_illbbitmap/expect.1
@@ -22,6 +22,8 @@ Fix? yes
 Inode bitmap differences:  -(12--21)
 Fix? yes
 
+Padding at end of inode bitmap is not set. Fix? yes
+
 
 test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
 test_filesys: 11/32 files (0.0% non-contiguous), 22/100 blocks
Index: e2fsprogs-1.43.8/tests/f_illibitmap/expect.1
===================================================================
--- e2fsprogs-1.43.8.orig/tests/f_illibitmap/expect.1
+++ e2fsprogs-1.43.8/tests/f_illibitmap/expect.1
@@ -19,6 +19,8 @@ Pass 5: Checking group summary informati
 Inode bitmap differences:  +(1--11)
 Fix? yes
 
+Padding at end of inode bitmap is not set. Fix? yes
+
 
 test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
 test_filesys: 11/32 files (0.0% non-contiguous), 22/100 blocks
Index: e2fsprogs-1.43.8/tests/f_illitable_flexbg/expect.1
===================================================================
--- e2fsprogs-1.43.8.orig/tests/f_illitable_flexbg/expect.1
+++ e2fsprogs-1.43.8/tests/f_illitable_flexbg/expect.1
@@ -18,6 +18,8 @@ Pass 5: Checking group summary informati
 Inode bitmap differences:  -(65--128)
 Fix? yes
 
+Padding at end of inode bitmap is not set. Fix? yes
+
 
 test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
 test_filesys: 12/256 files (0.0% non-contiguous), 31163/32768 blocks
Index: e2fsprogs-1.43.8/tests/f_lpf/expect.1
===================================================================
--- e2fsprogs-1.43.8.orig/tests/f_lpf/expect.1
+++ e2fsprogs-1.43.8/tests/f_lpf/expect.1
@@ -42,6 +42,8 @@ Fix? yes
 Free inodes count wrong (1, counted=0).
 Fix? yes
 
+Padding at end of inode bitmap is not set. Fix? yes
+
 
 test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
 test_filesys: 16/16 files (12.5% non-contiguous), 67/100 blocks
Index: e2fsprogs-1.43.8/tests/f_overfsblks/expect.1
===================================================================
--- e2fsprogs-1.43.8.orig/tests/f_overfsblks/expect.1
+++ e2fsprogs-1.43.8/tests/f_overfsblks/expect.1
@@ -13,6 +13,8 @@ Pass 5: Checking group summary informati
 Inode bitmap differences:  -(12--21)
 Fix? yes
 
+Padding at end of inode bitmap is not set. Fix? yes
+
 
 test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
 test_filesys: 11/32 files (0.0% non-contiguous), 22/100 blocks
Index: e2fsprogs-1.43.8/tests/f_super_bad_csum/expect.1
===================================================================
--- e2fsprogs-1.43.8.orig/tests/f_super_bad_csum/expect.1
+++ e2fsprogs-1.43.8/tests/f_super_bad_csum/expect.1
@@ -5,8 +5,8 @@ Pass 2: Checking directory structure
 Pass 3: Checking directory connectivity
 Pass 4: Checking reference counts
 Pass 5: Checking group summary information
-Inode bitmap differences: Group 1 inode bitmap does not match checksum.
-FIXED.
+Padding at end of inode bitmap is not set. Fix? yes
+
 
 test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
 test_filesys: 11/1024 files (0.0% non-contiguous), 1557/16384 blocks
Index: e2fsprogs-1.43.8/tests/j_corrupt_ext_jnl_sb_csum/expect
===================================================================
--- e2fsprogs-1.43.8.orig/tests/j_corrupt_ext_jnl_sb_csum/expect
+++ e2fsprogs-1.43.8/tests/j_corrupt_ext_jnl_sb_csum/expect
@@ -12,6 +12,8 @@ Fix? yes
 Inode bitmap differences:  +(1--11)
 Fix? yes
 
+Padding at end of inode bitmap is not set. Fix? yes
+
 
 test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
 test_filesys: 11/128 files (0.0% non-contiguous), 66/2048 blocks
Index: e2fsprogs-1.43.8/tests/j_ext_long_trans/expect
===================================================================
--- e2fsprogs-1.43.8.orig/tests/j_ext_long_trans/expect
+++ e2fsprogs-1.43.8/tests/j_ext_long_trans/expect
@@ -98,6 +98,8 @@ Fix? yes
 Free inodes count wrong (16372, counted=16373).
 Fix? yes
 
+Padding at end of inode bitmap is not set. Fix? yes
+
 
 test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
 test_filesys: 11/16384 files (0.0% non-contiguous), 6228/262144 blocks
Index: e2fsprogs-1.43.8/tests/j_long_trans/expect
===================================================================
--- e2fsprogs-1.43.8.orig/tests/j_long_trans/expect
+++ e2fsprogs-1.43.8/tests/j_long_trans/expect
@@ -96,6 +96,8 @@ Fix? yes
 Free inodes count wrong (16372, counted=16373).
 Fix? yes
 
+Padding at end of inode bitmap is not set. Fix? yes
+
 Recreate journal? yes
 
 Creating journal (8192 blocks):  Done.
Index: e2fsprogs-1.43.8/tests/j_long_trans_mcsum_32bit/expect
===================================================================
--- e2fsprogs-1.43.8.orig/tests/j_long_trans_mcsum_32bit/expect
+++ e2fsprogs-1.43.8/tests/j_long_trans_mcsum_32bit/expect
@@ -135,6 +135,8 @@ Fix? yes
 Free inodes count wrong (32756, counted=32757).
 Fix? yes
 
+Padding at end of inode bitmap is not set. Fix? yes
+
 Recreate journal? yes
 
 Creating journal (16384 blocks):  Done.
Index: e2fsprogs-1.43.8/tests/j_long_trans_mcsum_64bit/expect
===================================================================
--- e2fsprogs-1.43.8.orig/tests/j_long_trans_mcsum_64bit/expect
+++ e2fsprogs-1.43.8/tests/j_long_trans_mcsum_64bit/expect
@@ -134,6 +134,8 @@ Fix? yes
 Free inodes count wrong (32756, counted=32757).
 Fix? yes
 
+Padding at end of inode bitmap is not set. Fix? yes
+
 Recreate journal? yes
 
 Creating journal (16384 blocks):  Done.
Index: e2fsprogs-1.43.8/tests/j_recover_csum2_32bit/expect.1
===================================================================
--- e2fsprogs-1.43.8.orig/tests/j_recover_csum2_32bit/expect.1
+++ e2fsprogs-1.43.8/tests/j_recover_csum2_32bit/expect.1
@@ -10,6 +10,8 @@ Fix? yes
 Inode bitmap differences:  +(1--11)
 Fix? yes
 
+Padding at end of inode bitmap is not set. Fix? yes
+
 
 test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
 test_filesys: 11/8192 files (0.0% non-contiguous), 7739/131072 blocks
Index: e2fsprogs-1.43.8/tests/j_recover_csum2_64bit/expect.1
===================================================================
--- e2fsprogs-1.43.8.orig/tests/j_recover_csum2_64bit/expect.1
+++ e2fsprogs-1.43.8/tests/j_recover_csum2_64bit/expect.1
@@ -10,6 +10,8 @@ Fix? yes
 Inode bitmap differences:  +(1--11)
 Fix? yes
 
+Padding at end of inode bitmap is not set. Fix? yes
+
 
 test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
 test_filesys: 11/8192 files (0.0% non-contiguous), 7739/131072 blocks
Index: e2fsprogs-1.43.8/tests/j_short_trans/expect
===================================================================
--- e2fsprogs-1.43.8.orig/tests/j_short_trans/expect
+++ e2fsprogs-1.43.8/tests/j_short_trans/expect
@@ -32,6 +32,8 @@ Fix? yes
 Inode bitmap differences:  +(1--11)
 Fix? yes
 
+Padding at end of inode bitmap is not set. Fix? yes
+
 
 test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
 test_filesys: 11/16384 files (0.0% non-contiguous), 5164/65536 blocks
Index: e2fsprogs-1.43.8/tests/j_short_trans_64bit/expect
===================================================================
--- e2fsprogs-1.43.8.orig/tests/j_short_trans_64bit/expect
+++ e2fsprogs-1.43.8/tests/j_short_trans_64bit/expect
@@ -34,6 +34,8 @@ Fix? yes
 Inode bitmap differences:  +(1--11)
 Fix? yes
 
+Padding at end of inode bitmap is not set. Fix? yes
+
 
 test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
 test_filesys: 11/16384 files (0.0% non-contiguous), 5196/65536 blocks
Index: e2fsprogs-1.43.8/tests/j_short_trans_mcsum_64bit/expect
===================================================================
--- e2fsprogs-1.43.8.orig/tests/j_short_trans_mcsum_64bit/expect
+++ e2fsprogs-1.43.8/tests/j_short_trans_mcsum_64bit/expect
@@ -34,6 +34,8 @@ Fix? yes
 Inode bitmap differences:  +(1--11)
 Fix? yes
 
+Padding at end of inode bitmap is not set. Fix? yes
+
 
 test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
 test_filesys: 11/32768 files (0.0% non-contiguous), 6353/131072 blocks
Index: e2fsprogs-1.43.8/tests/j_short_trans_old_csum/expect
===================================================================
--- e2fsprogs-1.43.8.orig/tests/j_short_trans_old_csum/expect
+++ e2fsprogs-1.43.8/tests/j_short_trans_old_csum/expect
@@ -34,6 +34,8 @@ Fix? yes
 Inode bitmap differences:  +(1--11)
 Fix? yes
 
+Padding at end of inode bitmap is not set. Fix? yes
+
 
 test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
 test_filesys: 11/16384 files (0.0% non-contiguous), 5164/65536 blocks
Index: e2fsprogs-1.43.8/tests/j_short_trans_open_recover/expect
===================================================================
--- e2fsprogs-1.43.8.orig/tests/j_short_trans_open_recover/expect
+++ e2fsprogs-1.43.8/tests/j_short_trans_open_recover/expect
@@ -37,6 +37,8 @@ Fix? yes
 Inode bitmap differences:  +(1--11)
 Fix? yes
 
+Padding at end of inode bitmap is not set. Fix? yes
+
 
 test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
 test_filesys: 11/16384 files (0.0% non-contiguous), 5164/65536 blocks
Index: e2fsprogs-1.43.8/tests/j_short_trans_recover/expect
===================================================================
--- e2fsprogs-1.43.8.orig/tests/j_short_trans_recover/expect
+++ e2fsprogs-1.43.8/tests/j_short_trans_recover/expect
@@ -34,6 +34,8 @@ Fix? yes
 Inode bitmap differences:  +(1--11)
 Fix? yes
 
+Padding at end of inode bitmap is not set. Fix? yes
+
 
 test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
 test_filesys: 11/16384 files (0.0% non-contiguous), 5164/65536 blocks
Index: e2fsprogs-1.43.8/tests/j_short_trans_recover_mcsum_64bit/expect
===================================================================
--- e2fsprogs-1.43.8.orig/tests/j_short_trans_recover_mcsum_64bit/expect
+++ e2fsprogs-1.43.8/tests/j_short_trans_recover_mcsum_64bit/expect
@@ -36,6 +36,8 @@ Fix? yes
 Inode bitmap differences:  +(1--11)
 Fix? yes
 
+Padding at end of inode bitmap is not set. Fix? yes
+
 
 test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
 test_filesys: 11/32768 files (0.0% non-contiguous), 6353/131072 blocks
Index: e2fsprogs-1.43.8/tests/t_replay_and_set/expect
===================================================================
--- e2fsprogs-1.43.8.orig/tests/t_replay_and_set/expect
+++ e2fsprogs-1.43.8/tests/t_replay_and_set/expect
@@ -30,6 +30,8 @@ Fix? yes
 Inode bitmap differences:  +(1--11)
 Fix? yes
 
+Padding at end of inode bitmap is not set. Fix? yes
+
 
 test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
 test_filesys: 11/16384 files (0.0% non-contiguous), 5164/65536 blocks

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File e2fsck-check-and-fix-tails-of-all-bitmaps.patch of Package e2fsprogs (Revision d8f0e1e9351003e8fa23e76a764813bf)

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