https://bugzilla.kernel.org/show_bug.cgi?id=198923 Bug ID: 198923 Summary: Linux 4.15.4+: Write on Ext4 causes system block Product: File System Version: 2.5 Kernel Version: 4.15.4 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: ext4 Assignee: fs_ext4@xxxxxxxxxxxxxxxxxxxx Reporter: mabo@xxxxxxxxxx Regression: No Created attachment 274437 --> https://bugzilla.kernel.org/attachment.cgi?id=274437&action=edit dmesg output on 4.16 RC2 Hello, I’m experiencing a bug, introduced with 4.15.4, which does block my system after a write attempt on my backup HDD, formatted in ext4. I can reproduce this on 4.15.5 too. It is still present on 4.16 RC2 but there it seems to only block applications accessing the drive, not all SATA I/O (but I’m not quite sure). In the attached log you’ll find a dmesg output, partition mount starts at line 1117, soon later, a write attempt is made. Just reading couldn’t trigger the issue in my tests. -- You are receiving this mail because: You are watching the assignee of the bug.