https://bugzilla.kernel.org/show_bug.cgi?id=89511 --- Comment #20 from Jun Itou <itou_jun@xxxxxxxxxxx> --- Created attachment 161441 --> https://bugzilla.kernel.org/attachment.cgi?id=161441&action=edit cat /sys/kernel/debug/usb/devices > devices.txt I gave following tests. echo 'temporary write through' >/sys/block/sdb/device/scsi_disk/*/cache_type echo 'write through' >/sys/block/sdb/device/scsi_disk/*/cache_type -- You are receiving this mail because: You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html