Hello, I had a RHEL 7.3 vmware workstaion VM (host is Linux running Fedora). The VM used LSI SAS adapter. I had previously used it for a few weeks without problem. When I reboot it in yesterday, there is file system corruption (check the end of the log): Feb 15 04:37:48 server02 systemd-fsck: /dev/sda1: clean, 336/128016 files, 169035/512000 blocks Feb 15 04:37:48 server02 systemd: Reached target Swap. Feb 15 04:37:48 server02 systemd: Starting Swap. Feb 15 04:37:48 server02 systemd: Started File System Check on /dev/disk/by-uuid/f31387b8-b3b8-4da8-983e-28a0c82145ea. Feb 15 04:37:48 server02 systemd-fsck: mount1: clean, 4392/196608 files, 116093/786432 blocks Feb 15 04:37:48 server02 systemd: Started File System Check on /dev/disk/by-label/mount1-disk. Feb 15 04:37:48 server02 systemd: Mounting /mount1... Feb 15 04:37:48 server02 systemd: Mounting /boot... Feb 15 04:37:48 server02 kernel: EXT4-fs (sdc): mounted filesystem with ordered data mode. Opts: journal_checksum,nodelalloc Feb 15 04:37:48 server02 systemd: Mounted /mount1. Feb 15 04:37:48 server02 kernel: EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null) Feb 15 04:37:48 server02 systemd: Mounted /boot. Feb 15 04:37:50 server02 kernel: floppy0: no floppy controllers found Feb 15 04:37:50 server02 systemd: Started udev Wait for Complete Device Initialization. Feb 15 04:37:50 server02 systemd: Starting Activation of DM RAID sets... Feb 15 04:37:50 server02 systemd: Started Activation of DM RAID sets. Feb 15 04:37:50 server02 systemd: Reached target Local File Systems. Feb 15 04:37:50 server02 systemd: Starting Local File Systems. Feb 15 04:37:50 server02 systemd: Starting Tell Plymouth To Write Out Runtime Data... Feb 15 04:37:50 server02 systemd: Starting Preprocess NFS configuration... Feb 15 04:37:50 server02 systemd: Starting Import network configuration from initramfs... Feb 15 04:37:50 server02 systemd: Reached target Encrypted Volumes. Feb 15 04:37:50 server02 systemd: Starting Encrypted Volumes. Feb 15 04:37:50 server02 systemd: Started Tell Plymouth To Write Out Runtime Data. Feb 15 04:37:50 server02 systemd: Started Preprocess NFS configuration. Feb 15 04:37:50 server02 systemd: Started Import network configuration from initramfs. Feb 15 04:37:50 server02 systemd: Starting Create Volatile Files and Directories... Feb 15 04:37:50 server02 systemd: Started Create Volatile Files and Directories. Feb 15 04:37:50 server02 systemd: Starting Security Auditing Service... Feb 15 04:37:51 server02 augenrules: /sbin/augenrules: No change Feb 15 04:37:51 server02 systemd: Started Security Auditing Service. Feb 15 04:37:51 server02 systemd: Starting Update UTMP about System Boot/Shutdown... Feb 15 04:37:51 server02 auditd[921]: Started dispatcher: /sbin/audispd pid: 937 Feb 15 04:37:51 server02 kernel: type=1305 audit(1487104671.281:3): audit_pid=921 old=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:auditd_t:s0 res=1 Feb 15 04:37:51 server02 kernel: EXT4-fs error (device dm-0): mb_free_blocks:1448: group 38, block 1249221:freeing already freed block (bit 4037); block bitmap corrupt. Feb 15 04:37:51 server02 kernel: EXT4-fs error (device dm-0): ext4_mb_generate_buddy:757: group 38, block bitmap and bg descriptor inconsistent: 14676 vs 14677 free clusters Feb 15 04:37:51 server02 kernel: EXT4-fs error (device dm-0): mb_free_blocks:1448: group 33, block 1086784:freeing already freed block (bit 5440); block bitmap corrupt. Feb 15 04:37:51 server02 kernel: EXT4-fs error (device dm-0): ext4_mb_generate_buddy:757: group 33, Feb 15 04:37:51 server02 kernel: block bitmap and bg descriptor inconsistent: 4823 vs 4845 free clusters After checking Redhat KB, it seems only RHEL 5 and RHEL 6 are affected. https://access.redhat.com/solutions/155873 I had already performed file system repair on the two corrupted file sytems (root and another mount point) Since lots of files were corrupted (inside lost+found), the system is not usable, I had restored the VM from backup. So I do not have the corrupted file system now. The kernel version is stock RHEL 7.3 kernel-3.10.0-514.el7. On the root file system, I had manually enabled journal_checksum. On another file system, I had manually enable journal_checksum and nodelalloc. Thanks and best regards, Patrick
