Ubuntu の PC に USB3 でつないでいる HDD がたまに勝手に切断される。なので Dropbox も巻き込まれて落ちる。Dropbox を再起動すると再度マウントするみたいだけど、しばらくするといつの間にか切断されて、dropbox のプロセスは生きてるけどシグナルに反応しない状態になる。
HDD の問題なのか、USB ポートの問題なのか、OS の問題なのか分からん。
パーティションは 3TB と 1TB に分けていて、どちらも Ext4 でフォーマットしてます。以前は 3TB の方が NTFS で、それが問題なのかもと思って、Ext4 でフォーマットしなおしたけど治らない。
Jul 11 20:14:23 britney kernel: [457031.246336] usb 4-6: USB disconnect, device number 9
Jul 11 20:14:25 britney udisksd[1062]: Cleaning up mount point /media/toru/dropbox (device 8:17 no longer exists)
Jul 11 20:14:25 britney systemd[1]: Unmounting /media/toru/dropbox...
Jul 11 20:14:25 britney systemd[1]: Unmounting /media/toru/wd-ext4...
Jul 11 20:14:25 britney umount[5342]: umount: /media/toru/dropbox: not mounted.
Jul 11 20:14:25 britney systemd[1]: media-toru-dropbox.mount: Mount process exited, code=exited status=32
Jul 11 20:14:25 britney systemd[1]: media-toru-dropbox.mount: Failed with result 'exit-code'.
Jul 11 20:14:25 britney systemd[1]: Unmounted /media/toru/dropbox.
Jul 11 20:14:25 britney upowerd[2028]: unhandled action 'unbind' on /sys/devices/pci0000:00/0000:00:14.0/usb4/4-6/4-6:1.
0
Jul 11 20:14:25 britney upowerd[2028]: unhandled action 'unbind' on /sys/devices/pci0000:00/0000:00:14.0/usb4/4-6
Jul 11 20:14:26 britney kernel: [457033.821316] usb 4-6: new SuperSpeed USB device number 10 using xhci_hcd
Jul 11 20:14:26 britney kernel: [457033.842063] usb 4-6: New USB device found, idVendor=1058, idProduct=25a3
Jul 11 20:14:26 britney kernel: [457033.842065] usb 4-6: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Jul 11 20:14:26 britney kernel: [457033.842066] usb 4-6: Product: Elements 25A3
Jul 11 20:14:26 britney kernel: [457033.842067] usb 4-6: Manufacturer: Western Digital
Jul 11 20:14:26 britney kernel: [457033.842068] usb 4-6: SerialNumber: 574343374B324B5448323952
Jul 11 20:14:26 britney kernel: [457033.842853] usb-storage 4-6:1.0: USB Mass Storage device detected
Jul 11 20:14:26 britney kernel: [457033.842980] scsi host6: usb-storage 4-6:1.0
Jul 11 20:14:26 britney mtp-probe: checking bus 4, device 10: "/sys/devices/pci0000:00/0000:00:14.0/usb4/4-6"
Jul 11 20:14:26 britney mtp-probe: bus: 4, device: 10 was not an MTP device
Jul 11 20:14:26 britney upowerd[2028]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:14.0/usb4/4-6/4-6:1.0
Jul 11 20:14:26 britney upowerd[2028]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:14.0/usb4/4-6
Jul 11 20:14:26 britney kernel: [457033.952918] blk_partition_remap: fail for partition 2
Jul 11 20:14:26 britney kernel: [457033.952921] Buffer I/O error on dev sdb2, logical block 122191872, lost sync page write
Jul 11 20:14:26 britney kernel: [457033.952925] JBD2: Error -5 detected when updating journal superblock for sdb2-8.
Jul 11 20:14:26 britney kernel: [457033.952926] Aborting journal on device sdb2-8.
Jul 11 20:14:26 britney kernel: [457033.952928] blk_partition_remap: fail for partition 2
Jul 11 20:14:26 britney kernel: [457033.952929] Buffer I/O error on dev sdb2, logical block 122191872, lost sync page write
Jul 11 20:14:26 britney kernel: [457033.952930] JBD2: Error -5 detected when updating journal superblock for sdb2-8.
Jul 11 20:14:26 britney systemd[1]: Unmounted /media/toru/wd-ext4.
Jul 11 20:14:27 britney kernel: [457034.857611] scsi 6:0:0:0: Direct-Access WD Elements 25A3 1019 PQ: 0 ANSI: 6
Jul 11 20:14:27 britney kernel: [457034.857989] sd 6:0:0:0: Attached scsi generic sg1 type 0
Jul 11 20:14:27 britney kernel: [457034.858100] sd 6:0:0:0: [sdb] Very big device. Trying to use READ CAPACITY(16).
Jul 11 20:14:27 britney kernel: [457034.858217] sd 6:0:0:0: [sdb] 7813969920 512-byte logical blocks: (4.00 TB/3.64 TiB)
Jul 11 20:14:27 britney kernel: [457034.858218] sd 6:0:0:0: [sdb] 4096-byte physical blocks
Jul 11 20:14:27 britney kernel: [457034.858436] sd 6:0:0:0: [sdb] Write Protect is off
Jul 11 20:14:27 britney kernel: [457034.858438] sd 6:0:0:0: [sdb] Mode Sense: 47 00 10 08
Jul 11 20:14:27 britney kernel: [457034.858651] sd 6:0:0:0: [sdb] No Caching mode page found
Jul 11 20:14:27 britney kernel: [457034.858654] sd 6:0:0:0: [sdb] Assuming drive cache: write through
Jul 11 20:14:27 britney kernel: [457034.858975] sd 6:0:0:0: [sdb] Very big device. Trying to use READ CAPACITY(16).