I found an interesting thread from 3 years ago that might be related. Now don't laugh :-) Do you have a USB hub attached?
Search the archives of this list for "EXT4-fs failed to convert unwritten extents to written extents -- potential data loss!" On Sat, May 27, 2023, 1:51 PM Mick Ab <recoverymail123...@gmail.com> wrote: > A desktop PC is running Debian 11 with an AMD Ryzen CPU. > > The system has been running well, but now the following error messages > have been seen :- > > Message from syslogd@piglit at May 27 13:58:09 ... > kernel:[2083218.760570] EXT4-fs (dm-0): failed to convert unwritten > extents to written extents -- potential data loss! (inode 394119, error > -30) > [3135811:3135811:0527/135811.569191:ERROR:gpu_memory_buffer_support_x11.cc(49)] > > dri3 extension not supported. > > Message from syslogd@piglit at May 27 13:58:09 ... > kernel:[2083218.760570] EXT4-fs (dm-0): failed to convert unwritten > extents to written extents -- potential data loss! (inode 394119, error > -30) > > Any thoughts about why the above is happening, please ? > > The Opera browser was running at the time. Subsequent to the above > messages, it was found that neither the Opera or Chrome browser could be > opened. Firefox has been opened but seems to run in a basic mode. >
