Comment 76 for bug 1423672

Running Fedora with 4.2.8, that crashed my X completely:

[ 2797.949100] EXT4-fs error (device dm-4): ext4_mb_generate_buddy:758: group 1, block bitmap and bg descriptor inconsistent: 2431 vs 2396 free clusters
[ 2797.951110] EXT4-fs error (device dm-4): ext4_mb_generate_buddy:758: group 5, block bitmap and bg descriptor inconsistent: 2449 vs 2421 free clusters
[ 2797.952697] EXT4-fs error (device dm-4): ext4_mb_generate_buddy:758: group 12, block bitmap and bg descriptor inconsistent: 6323 vs 6319 free clusters
[ 2797.952878] EXT4-fs error (device dm-4): ext4_mb_generate_buddy:758: group 13, block bitmap and bg descriptor inconsistent: 12510 vs 12506 free clusters
[ 2797.953017] EXT4-fs error (device dm-4): ext4_mb_generate_buddy:758: group 14, block bitmap and bg descriptor inconsistent: 7196 vs 7190 free clusters
[ 2797.961216] EXT4-fs error (device dm-4): ext4_mb_generate_buddy:758: group 23, block bitmap and bg descriptor inconsistent: 916 vs 897 free clusters
[ 2797.961765] EXT4-fs error (device dm-4): ext4_mb_generate_buddy:758: group 25, block bitmap and bg descriptor inconsistent: 722 vs 721 free clusters
[ 2797.963208] EXT4-fs error (device dm-4): ext4_mb_generate_buddy:758: group 26, block bitmap and bg descriptor inconsistent: 904 vs 894 free clusters
[ 2797.976310] EXT4-fs error (device dm-4): ext4_mb_generate_buddy:758: group 35, block bitmap and bg descriptor inconsistent: 21 vs 65507 free clusters
[ 2797.977395] EXT4-fs error (device dm-4): ext4_mb_generate_buddy:758: group 44, block bitmap and bg descriptor inconsistent: 809 vs 64297 free clusters
[ 2798.063978] JBD2: Spotted dirty metadata buffer (dev = dm-4, blocknr = 0). There's a risk of filesystem corruption in case of system crash.
[ 2798.064804] JBD2: Spotted dirty metadata buffer (dev = dm-4, blocknr = 0). There's a risk of filesystem corruption in case of system crash.

That's on my standard install, not in a VM (hich is what was reported by many other users).