https://bugzilla.kernel.org/show_bug.cgi?id=211733 Bug ID: 211733 Summary: ext4 file system unrecoverable corruption Product: File System Version: 2.5 Kernel Version: 5.4.0-65-generic Hardware: i386 OS: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: ext4 Assignee: fs_ext4@xxxxxxxxxxxxxxxxxxxx Reporter: martrw@xxxxxxxxx Regression: No Kubuntu 20.04, two week old installation 500 SATA HDD, 50GiB / partition/ 180GiB /home partition Dual boot with Win7 on 50GiB partition Observation: Was switching between the Win7 OS and Linux with multiple reboots in short spans of time(<5min). From Linux OS using Dolphin I moved ~5MB document files from Win7 partition to Linux /home/xxx/Documents directory and rebooted system to return to Win7. Made changes in Win7 as needed and booted back into Linux. I noticed the entire Documents directory was missing, about 50GiB files. Immediately shut down system and booted up Linux on duplicate drive containing image from about two weeks prior. Made read only image of /home directory from corrupted drive and placed on external 1 GiB backup drive. Using R-Linux, extundelete, debugfs no trace of the Documents directory can be located on the image or the original /home directory. I can see files I intentionally deleted during normal operations for over a week prior. fsck, smartctl indicate no disk issues. I have not tried to reproduce this issue. This event seems very similar to the one discuss in this link but I have not been able to locate that particular bug. https://www.itnews.com.au/news/stable-linux-kernels-hit-by-serious-file-system-bug-320709 I entered bug report on the bugs.kde.org bug tracker(432762) but was told that the issue is lower level than the Dolphin gui which I was using. Apologies if this is a duplicate, but I could not find a similar issue on this tracker. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
