我在一个完全加密的磁盘上新安装了 17.04（从头开始），并带有一个加密的主目录。
如果我运行 deja-dup 进行备份，系统肯定会崩溃。如果我查看 /var/log/syslog，它会显示有关将 ata1 速度降低到 3.0GB 的信息。不幸的是，我没有确切的消息，因为它使系统处于这样一种状态，即没有任何内容写入磁盘。
唯一的选择是强制关机并重新启动系统，此时 /var/log/syslog 不再包含 ata1 速度消息。
我用 SMART 检查了 SSD 的状态，一切正常。
我如何知道这是 deja-dup 问题还是其他问题？我该如何解决这个问题？
--编辑：我设法拍摄了一些照片（因为它不会将任何内容记录到磁盘）
它以Failed command: FLUSH CACHE EXT、开始COMRESET failed (errno=16)，然后系统切换为只读，唯一的出路是强制关机。
--编辑：这是所讨论的 SSD 的 SMART 数据：
smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.10.0-20-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Intel 520 Series SSDs
Device Model: INTEL SSDSC2BW180A3L
Serial Number: *****
LU WWN Device Id: *****
Firmware Version: LE1i
User Capacity: 180,045,766,656 bytes [180 GB]
Sector Size: 512 bytes logical/physical
Rotation Rate: Solid State Device
Device is: In smartctl database [for details use: -P show]
ATA Version is: ACS-2 (minor revision not indicated)
SATA Version is: SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Sun May 14 09:27:50 2017 EDT
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
General SMART Values:
Offline data collection status: (0x00) Offline data collection activity
was never started.
Auto Offline Data Collection: Disabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: ( 0) seconds.
Offline data collection
capabilities: (0x7f) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Abort Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 1) minutes.
Extended self-test routine
recommended polling time: ( 48) minutes.
Conveyance self-test routine
recommended polling time: ( 2) minutes.
SCT capabilities: (0x0021) SCT Status supported.
SCT Data Table supported.
SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
5 Reallocated_Sector_Ct 0x0032 100 100 000 Old_age Always - 0
9 Power_On_Hours_and_Msec 0x0032 080 080 000 Old_age Always - 18301h+22m+34.340s
12 Power_Cycle_Count 0x0032 098 098 000 Old_age Always - 2294
170 Available_Reservd_Space 0x0033 100 100 010 Pre-fail Always - 0
171 Program_Fail_Count 0x0032 100 100 000 Old_age Always - 0
172 Erase_Fail_Count 0x0032 100 100 000 Old_age Always - 0
174 Unexpect_Power_Loss_Ct 0x0032 100 100 000 Old_age Always - 816
183 Runtime_Bad_Block 0x0032 100 100 000 Old_age Always - 261
184 End-to-End_Error 0x0033 100 100 097 Pre-fail Always - 0
187 Uncorrectable_Error_Cnt 0x0032 100 100 000 Old_age Always - 0
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 816
199 UDMA_CRC_Error_Count 0x0032 100 100 000 Old_age Always - 1
225 Host_Writes_32MiB 0x0032 100 100 000 Old_age Always - 311454
226 Workld_Media_Wear_Indic 0x0032 100 100 000 Old_age Always - 65535
227 Workld_Host_Reads_Perc 0x0032 100 100 000 Old_age Always - 52
228 Workload_Minutes 0x0032 100 100 000 Old_age Always - 65535
232 Available_Reservd_Space 0x0033 100 100 010 Pre-fail Always - 0
233 Media_Wearout_Indicator 0x0032 100 100 000 Old_age Always - 0
241 Host_Writes_32MiB 0x0032 100 100 000 Old_age Always - 311454
242 Host_Reads_32MiB 0x0032 100 100 000 Old_age Always - 348910
249 NAND_Writes_1GiB 0x0013 100 100 000 Pre-fail Always - 12890
SMART Error Log not supported
SMART Self-test Log not supported
SMART Selective self-test log data structure revision number 0
Note: revision number not 1 implies that no selective self-test has ever been run
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.