最近我的系统（Ubuntu 18.04）时不时会死机。它完全没有响应，甚至发送 rusieb 似乎也无法解决它。
这是最新一次冻结的系统日志：
Aug 2 15:13:22 dino-XPS-13-9360 gnome-shell[3088]: gnome-session gave us a dead inhibitor: /org/gnome/SessionManager/Inhibitor37
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.326552] rfkill: input handler enabled
Aug 2 15:13:23 dino-XPS-13-9360 systemd[2906]: Stopping D-Bus User Message Bus...
Aug 2 15:13:23 dino-XPS-13-9360 gvfsd[3066]: A connection to the bus can't be made
Aug 2 15:13:23 dino-XPS-13-9360 systemd[2906]: xdg-permission-store.service: Main process exited, code=exited, status=1/FAILURE
Aug 2 15:13:23 dino-XPS-13-9360 systemd[2906]: xdg-permission-store.service: Failed with result 'exit-code'.
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372562] swap_info_get: Bad swap file entry 2e01ffffffffffff
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372566] BUG: Bad page map in process dconf worker pte:bc00000000000000 pmd:200b31067
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372569] addr:000000009624b89b vm_flags:08000070 anon_vma: (null) mapping:00000000a3d9dd6d index:139
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372576] file:libcanberra-gtk3-module.so fault:ext4_filemap_fault mmap:ext4_file_mmap readpage:ext4_readpage
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372579] CPU: 0 PID: 3277 Comm: dconf worker Tainted: G B D OE 4.15.0-151-generic #157-Ubuntu
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372580] Hardware name: Dell Inc. XPS 13 9360/05HM5Y, BIOS 1.3.2 01/18/2017
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372581] Call Trace:
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372587] dump_stack+0x6d/0x8b
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372591] print_bad_pte+0x222/0x2e0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372594] ? __swap_info_get+0x7b/0xa0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372596] ? _swap_info_get+0x12/0x50
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372598] unmap_page_range+0x91f/0xd00
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372600] unmap_single_vma+0x7d/0xf0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372603] unmap_vmas+0x51/0xb0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372606] exit_mmap+0xb5/0x1d0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372610] mmput+0x57/0x140
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372612] do_exit+0x352/0xb90
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372614] ? try_to_wake_up+0x59/0x4a0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372616] do_group_exit+0x43/0xb0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372619] get_signal+0x142/0x7a0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372622] do_signal+0x37/0x720
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372625] ? eventfd_write+0x95/0x270
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372628] ? ktime_get_ts64+0x51/0xf0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372631] exit_to_usermode_loop+0x73/0xd0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372633] do_syscall_64+0x121/0x130
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372636] entry_SYSCALL_64_after_hwframe+0x41/0xa6
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372638] RIP: 0033:0x7f17b9639cb9
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372640] RSP: 002b:00007f17b0302af0 EFLAGS: 00000293 ORIG_RAX: 0000000000000007
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372642] RAX: 0000000000000001 RBX: 000055bc79a09e70 RCX: 00007f17b9639cb9
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372643] RDX: 00000000000061a8 RSI: 0000000000000001 RDI: 000055bc79a09e70
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372645] RBP: 0000000000000001 R08: 0000000000000000 R09: 000055bc79a09f88
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372646] R10: 000055bc79a0f920 R11: 0000000000000293 R12: 00000000000061a8
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372647] R13: 00000000000061a8 R14: 00007f17bb5d7070 R15: 0000000000000001
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372650] swap_info_get: Bad swap offset entry 3ffff994c312c
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372651] BUG: Bad page map in process dconf worker pte:cd679da6a8 pmd:200b31067
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372653] addr:0000000014eda8b3 vm_flags:08000070 anon_vma: (null) mapping:00000000a3d9dd6d index:13a
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372657] file:libcanberra-gtk3-module.so fault:ext4_filemap_fault mmap:ext4_file_mmap readpage:ext4_readpage
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372659] CPU: 0 PID: 3277 Comm: dconf worker Tainted: G B D OE 4.15.0-151-generic #157-Ubuntu
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372660] Hardware name: Dell Inc. XPS 13 9360/05HM5Y, BIOS 1.3.2 01/18/2017
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372661] Call Trace:
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372664] dump_stack+0x6d/0x8b
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372666] print_bad_pte+0x222/0x2e0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372668] ? __swap_info_get+0x61/0xa0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372670] ? _swap_info_get+0x12/0x50
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372673] unmap_page_range+0x91f/0xd00
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372676] unmap_single_vma+0x7d/0xf0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372678] unmap_vmas+0x51/0xb0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372680] exit_mmap+0xb5/0x1d0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372683] mmput+0x57/0x140
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372685] do_exit+0x352/0xb90
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372687] ? try_to_wake_up+0x59/0x4a0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372688] do_group_exit+0x43/0xb0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372690] get_signal+0x142/0x7a0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372692] do_signal+0x37/0x720
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372694] ? eventfd_write+0x95/0x270
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372696] ? ktime_get_ts64+0x51/0xf0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372699] exit_to_usermode_loop+0x73/0xd0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372700] do_syscall_64+0x121/0x130
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372702] entry_SYSCALL_64_after_hwframe+0x41/0xa6
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372703] RIP: 0033:0x7f17b9639cb9
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372704] RSP: 002b:00007f17b0302af0 EFLAGS: 00000293 ORIG_RAX: 0000000000000007
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372706] RAX: 0000000000000001 RBX: 000055bc79a09e70 RCX: 00007f17b9639cb9
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372707] RDX: 00000000000061a8 RSI: 0000000000000001 RDI: 000055bc79a09e70
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372708] RBP: 0000000000000001 R08: 0000000000000000 R09: 000055bc79a09f88
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372709] R10: 000055bc79a0f920 R11: 0000000000000293 R12: 00000000000061a8
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.372710] R13: 00000000000061a8 R14: 00007f17bb5d7070 R15: 0000000000000001
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.373932] BUG: Bad rss-counter state mm:00000000b0feecf1 idx:2 val:-2
Aug 2 15:13:23 dino-XPS-13-9360 deja-dup-monito[4696]: Owner of volume monitor org.gtk.vfs.UDisks2VolumeMonitor disconnected from the bus; removing drives/volumes/mounts
Aug 2 15:13:23 dino-XPS-13-9360 deja-dup-monito[4696]: Owner of volume monitor org.gtk.vfs.MTPVolumeMonitor disconnected from the bus; removing drives/volumes/mounts
Aug 2 15:13:23 dino-XPS-13-9360 deja-dup-monito[4696]: Owner of volume monitor org.gtk.vfs.GoaVolumeMonitor disconnected from the bus; removing drives/volumes/mounts
Aug 2 15:13:23 dino-XPS-13-9360 deja-dup-monito[4696]: Owner of volume monitor org.gtk.vfs.GPhoto2VolumeMonitor disconnected from the bus; removing drives/volumes/mounts
Aug 2 15:13:23 dino-XPS-13-9360 deja-dup-monito[4696]: Owner of volume monitor org.gtk.vfs.AfcVolumeMonitor disconnected from the bus; removing drives/volumes/mounts
Aug 2 15:13:23 dino-XPS-13-9360 gsd-housekeepin[3244]: Error releasing name org.gnome.SettingsDaemon.Housekeeping: The connection is closed
Aug 2 15:13:23 dino-XPS-13-9360 gnome-session[2943]: gnome-session-binary[2943]: WARNING: Lost name on bus: org.gnome.SessionManager
Aug 2 15:13:23 dino-XPS-13-9360 gnome-session-binary[2943]: WARNING: Lost name on bus: org.gnome.SessionManager
Aug 2 15:13:23 dino-XPS-13-9360 gnome-session[2943]: gnome-session-binary[2943]: CRITICAL: We failed, but the fail whale is dead. Sorry....
Aug 2 15:13:23 dino-XPS-13-9360 gnome-session-binary[2943]: CRITICAL: We failed, but the fail whale is dead. Sorry....
Aug 2 15:13:23 dino-XPS-13-9360 evolution-calen[3597]: Error releasing name org.gnome.evolution.dataserver.Subprocess.Backend.Calendarx3405x2: The connection is closed
Aug 2 15:13:23 dino-XPS-13-9360 evolution-calen[3597]: e_intervaltree_destroy: assertion 'E_IS_INTERVALTREE (tree)' failed
Aug 2 15:13:23 dino-XPS-13-9360 evolution-addre[3664]: Error releasing name org.gnome.evolution.dataserver.Subprocess.Backend.AddressBookx3638x2: The connection is closed
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418874] swap_info_get: Bad swap offset entry 3ffff994c312c
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418879] BUG: Bad page map in process gdbus pte:cd679da6a8 pmd:1e791b067
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418883] addr:0000000077da1564 vm_flags:08000070 anon_vma: (null) mapping:0000000037081068 index:26b
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418890] file:libasn1.so.8.0.0 fault:ext4_filemap_fault mmap:ext4_file_mmap readpage:ext4_readpage
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418893] CPU: 3 PID: 3644 Comm: gdbus Tainted: G B D OE 4.15.0-151-generic #157-Ubuntu
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418894] Hardware name: Dell Inc. XPS 13 9360/05HM5Y, BIOS 1.3.2 01/18/2017
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418896] Call Trace:
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418901] dump_stack+0x6d/0x8b
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418905] print_bad_pte+0x222/0x2e0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418908] ? __swap_info_get+0x61/0xa0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418910] ? _swap_info_get+0x12/0x50
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418912] unmap_page_range+0x91f/0xd00
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418916] unmap_single_vma+0x7d/0xf0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418918] unmap_vmas+0x51/0xb0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418921] exit_mmap+0xb5/0x1d0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418925] mmput+0x57/0x140
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418927] do_exit+0x352/0xb90
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418929] ? try_to_wake_up+0x59/0x4a0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418931] do_group_exit+0x43/0xb0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418934] get_signal+0x142/0x7a0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418937] do_signal+0x37/0x720
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418940] ? __wake_up_locked_key+0x1b/0x20
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418943] ? eventfd_write+0xd8/0x270
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418947] exit_to_usermode_loop+0x73/0xd0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418949] do_syscall_64+0x121/0x130
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418951] entry_SYSCALL_64_after_hwframe+0x41/0xa6
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418954] RIP: 0033:0x7f2bb4919cb9
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418955] RSP: 002b:00007f2ba62ebca0 EFLAGS: 00000293 ORIG_RAX: 0000000000000007
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418957] RAX: fffffffffffffdfc RBX: 000055d30dbb2400 RCX: 00007f2bb4919cb9
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418959] RDX: 00000000ffffffff RSI: 0000000000000001 RDI: 000055d30dbb2400
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418960] RBP: 0000000000000001 R08: 0000000000000000 R09: 000055d30dbb0dd8
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418962] R10: 000055d30db9b680 R11: 0000000000000293 R12: 00000000ffffffff
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418963] R13: 00000000ffffffff R14: 00007f2bb5175070 R15: 0000000000000002
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418972] swap_info_get: Bad swap file entry 2e01ffffffffffff
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418973] BUG: Bad page map in process gdbus pte:bc00000000000000 pmd:1e791b067
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418975] addr:000000001a3b2286 vm_flags:08000070 anon_vma: (null) mapping:00000000b13cc310 index:108
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418979] file:libkrb5.so.26.0.0 fault:ext4_filemap_fault mmap:ext4_file_mmap readpage:ext4_readpage
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418981] CPU: 3 PID: 3644 Comm: gdbus Tainted: G B D OE 4.15.0-151-generic #157-Ubuntu
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418982] Hardware name: Dell Inc. XPS 13 9360/05HM5Y, BIOS 1.3.2 01/18/2017
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418983] Call Trace:
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418986] dump_stack+0x6d/0x8b
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418988] print_bad_pte+0x222/0x2e0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418990] ? __swap_info_get+0x7b/0xa0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418992] ? _swap_info_get+0x12/0x50
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418994] unmap_page_range+0x91f/0xd00
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418997] unmap_single_vma+0x7d/0xf0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.418999] unmap_vmas+0x51/0xb0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419001] exit_mmap+0xb5/0x1d0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419004] mmput+0x57/0x140
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419006] do_exit+0x352/0xb90
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419008] ? try_to_wake_up+0x59/0x4a0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419009] do_group_exit+0x43/0xb0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419012] get_signal+0x142/0x7a0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419015] do_signal+0x37/0x720
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419018] ? __wake_up_locked_key+0x1b/0x20
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419020] ? eventfd_write+0xd8/0x270
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419023] exit_to_usermode_loop+0x73/0xd0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419025] do_syscall_64+0x121/0x130
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419027] entry_SYSCALL_64_after_hwframe+0x41/0xa6
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419029] RIP: 0033:0x7f2bb4919cb9
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419030] RSP: 002b:00007f2ba62ebca0 EFLAGS: 00000293 ORIG_RAX: 0000000000000007
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419032] RAX: fffffffffffffdfc RBX: 000055d30dbb2400 RCX: 00007f2bb4919cb9
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419033] RDX: 00000000ffffffff RSI: 0000000000000001 RDI: 000055d30dbb2400
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419034] RBP: 0000000000000001 R08: 0000000000000000 R09: 000055d30dbb0dd8
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419036] R10: 000055d30db9b680 R11: 0000000000000293 R12: 00000000ffffffff
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419037] R13: 00000000ffffffff R14: 00007f2bb5175070 R15: 0000000000000002
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419040] swap_info_get: Bad swap offset entry 3ffff994c312c
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419041] BUG: Bad page map in process gdbus pte:cd679da6a8 pmd:1e791b067
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419043] addr:000000007d647242 vm_flags:08000070 anon_vma: (null) mapping:00000000b13cc310 index:109
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419046] file:libkrb5.so.26.0.0 fault:ext4_filemap_fault mmap:ext4_file_mmap readpage:ext4_readpage
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419048] CPU: 3 PID: 3644 Comm: gdbus Tainted: G B D OE 4.15.0-151-generic #157-Ubuntu
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419049] Hardware name: Dell Inc. XPS 13 9360/05HM5Y, BIOS 1.3.2 01/18/2017
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419050] Call Trace:
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419052] dump_stack+0x6d/0x8b
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419054] print_bad_pte+0x222/0x2e0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419056] ? __swap_info_get+0x61/0xa0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419057] ? _swap_info_get+0x12/0x50
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419059] unmap_page_range+0x91f/0xd00
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419062] unmap_single_vma+0x7d/0xf0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419064] unmap_vmas+0x51/0xb0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419066] exit_mmap+0xb5/0x1d0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419069] mmput+0x57/0x140
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419070] do_exit+0x352/0xb90
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419072] ? try_to_wake_up+0x59/0x4a0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419074] do_group_exit+0x43/0xb0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419076] get_signal+0x142/0x7a0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419078] do_signal+0x37/0x720
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419080] ? __wake_up_locked_key+0x1b/0x20
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419082] ? eventfd_write+0xd8/0x270
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419085] exit_to_usermode_loop+0x73/0xd0
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419087] do_syscall_64+0x121/0x130
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419088] entry_SYSCALL_64_after_hwframe+0x41/0xa6
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419090] RIP: 0033:0x7f2bb4919cb9
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419091] RSP: 002b:00007f2ba62ebca0 EFLAGS: 00000293 ORIG_RAX: 0000000000000007
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419092] RAX: fffffffffffffdfc RBX: 000055d30dbb2400 RCX: 00007f2bb4919cb9
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419093] RDX: 00000000ffffffff RSI: 0000000000000001 RDI: 000055d30dbb2400
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419094] RBP: 0000000000000001 R08: 0000000000000000 R09: 000055d30dbb0dd8
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419095] R10: 000055d30db9b680 R11: 0000000000000293 R12: 00000000ffffffff
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.419096] R13: 00000000ffffffff R14: 00007f2bb5175070 R15: 0000000000000002
Aug 2 15:13:23 dino-XPS-13-9360 kernel: [ 9800.420289] BUG: Bad rss-counter state mm:0000000079376461 idx:2 val:-3
Aug 2 15:13:23 dino-XPS-13-9360 gnome-shell[3088]: [AppIndicatorSupport-DEBUG] Lost nameorg.kde.StatusNotifierWatcher
我无法找到这些冻结的原因。是缺少交换空间，还是其他硬盘问题？
编辑
输出lshw -C memory
*-firmware
description: BIOS
vendor: Dell Inc.
physical id: 0
version: 1.3.2
date: 01/18/2017
size: 64KiB
capacity: 15MiB
capabilities: pci pnp upgrade shadowing cdboot bootselect edd int13floppynec int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int9keyboard int14serial int17printer acpi usb smartbattery biosbootspecification netboot uefi
*-memory
description: System Memory
physical id: 38
slot: System board or motherboard
size: 8GiB
*-bank:0
description: Row of chips LPDDR3 Synchronous Unbuffered (Unregistered) 1867 MHz (0,5 ns)
product: MT52L512M32D2PF-10
vendor: Micron
physical id: 0
serial: 00000000
slot: System Board Memory
size: 4GiB
width: 64 bits
clock: 1867MHz (0.5ns)
*-bank:1
description: Row of chips LPDDR3 Synchronous Unbuffered (Unregistered) 1867 MHz (0,5 ns)
product: MT52L512M32D2PF-10
vendor: Micron
physical id: 1
serial: 00000000
slot: System Board Memory
size: 4GiB
width: 64 bits
clock: 1867MHz (0.5ns)
*-cache:0
description: L1 cache
physical id: 3c
slot: L1 Cache
size: 128KiB
capacity: 128KiB
capabilities: synchronous internal write-back unified
configuration: level=1
*-cache:1
description: L2 cache
physical id: 3d
slot: L2 Cache
size: 512KiB
capacity: 512KiB
capabilities: synchronous internal write-back unified
configuration: level=2
*-cache:2
description: L3 cache
physical id: 3e
slot: L3 Cache
size: 3MiB
capacity: 3MiB
capabilities: synchronous internal write-back unified
configuration: level=3
*-memory UNCLAIMED
description: Memory controller
product: Sunrise Point-LP PMC
vendor: Intel Corporation
physical id: 1f.2
bus info: pci@0000:00:1f.2
version: 21
width: 32 bits
clock: 33MHz (30.3ns)
capabilities: bus_master
configuration: latency=0
resources: memory:dc32c000-dc32ffff
输出swapon -s：
Filename Type Size Used Priority
/dev/dm-2 partition 7999484 0 -2