> Please test it now. I'd like to know if it fixes your problem, > regardless of how the discussion goes. Seems to be working, I also attached the kernel log. The "flush failed" will grow with disc activity (but that was to be expected). Jun 22 23:24:50 m3800 kernel: usb 1-3: new high-speed USB device number 6 using xhci_hcd Jun 22 23:24:51 m3800 kernel: usb 1-3: New USB device found, idVendor=04cf, idProduct=8818 Jun 22 23:24:51 m3800 kernel: usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Jun 22 23:24:51 m3800 kernel: usb 1-3: Product: USB Mass Storage Device Jun 22 23:24:51 m3800 kernel: usb 1-3: Manufacturer: Myson Century, Inc. Jun 22 23:24:51 m3800 kernel: usb 1-3: SerialNumber: 100 Jun 22 23:24:51 m3800 kernel: usb-storage 1-3:1.0: USB Mass Storage device detected Jun 22 23:24:51 m3800 kernel: scsi host6: usb-storage 1-3:1.0 Jun 22 23:24:51 m3800 kernel: usbcore: registered new interface driver usb-storage Jun 22 23:24:52 m3800 kernel: scsi 6:0:0:0: Direct-Access SAMSUNG MP0804H UE10 PQ: 0 ANSI: 0 CCS Jun 22 23:24:52 m3800 kernel: sd 6:0:0:0: Attached scsi generic sg1 type 0 Jun 22 23:24:52 m3800 kernel: sd 6:0:0:0: [sdb] 156368016 512-byte logical blocks: (80.0 GB/74.5 GiB) Jun 22 23:24:52 m3800 kernel: sd 6:0:0:0: [sdb] Write Protect is off Jun 22 23:24:52 m3800 kernel: sd 6:0:0:0: [sdb] Mode Sense: 00 14 00 00 Jun 22 23:24:52 m3800 kernel: sd 6:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA Jun 22 23:24:52 m3800 kernel: sdb: sdb1 sdb2 Jun 22 23:24:52 m3800 kernel: sd 6:0:0:0: [sdb] Attached SCSI disk Jun 22 23:24:52 m3800 kernel: BTRFS: device label USB_BILDER devid 1 transid 9 /dev/sdb2 Jun 22 23:24:52 m3800 kernel: BTRFS info (device sdb2): disk space caching is enabled Jun 22 23:24:52 m3800 kernel: BTRFS: has skinny extents Jun 22 23:24:52 m3800 kernel: FAT-fs (sdb1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck. Jun 22 23:25:28 m3800 kernel: sdb: flush failed: data integrity problem Jun 22 23:25:28 m3800 kernel: sdb: flush failed: data integrity problem Jun 22 23:26:55 m3800 kernel: sdb: flush failed: data integrity problem Jun 22 23:26:55 m3800 kernel: sdb: flush failed: data integrity problem -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in
