← Back to team overview

kernel-packages team mailing list archive

[Bug 1575467] Re: Ubuntu 16.04 consistently freezes up / hangs

 

** Description changed:

- Not sure what package this is related to. My best guess is Unity, but i
- honestly have no idea. After upgrading from stock Ubuntu 14.04 to 16.04
- on my Dell Inspiron laptop consistently freezes up and is unresponsive
- keyboard or mouse. The only way is to do a hard shutdown. I'm usually in
- a browser when this happens, and often watching a video or two. So i
- wonder if this has something to do with my memory buffer or something.
- It seems to happen more often in Google Chrome than Firefox, but it
- happens with both. I know Google Chrome uses more memory though. And it
- has happened at least once with no videos loaded, so i doubt it's some
- sort of weird flash issue. I haven’t observed it freeze / hang when I’m
- not in a browser, but that's mainly what i use my laptop for, so that's
- where most of my time is spent.
+ Not sure what package this is related to. I honestly have no idea. After
+ upgrading from stock Ubuntu 14.04 to 16.04 on my Dell Inspiron laptop
+ consistently freezes up and is unresponsive keyboard or mouse. The only
+ way is to do a hard shutdown. I'm usually in a browser when this
+ happens, and often watching a video or two. So i wonder if this has
+ something to do with my memory buffer or something. It seems to happen
+ more often in Google Chrome than Firefox, but it happens with both. I
+ know Google Chrome uses more memory though. And it has happened at least
+ once with no videos loaded, so i doubt it's some sort of weird flash
+ issue. I haven’t observed it freeze / hang when I’m not in a browser,
+ but that's mainly what i use my laptop for, so that's where most of my
+ time is spent.
  
  I will try to upload any log files that people think may be useful. I
  will see if i can do the recommended ssh monitoring method while trying
  to reproduce it to see if i can see an error that way.
- 
  
  Not sure if this hardware info helps:
  lspci reports:
  00:00.0 Host bridge: Intel Corporation Atom Processor Z36xxx/Z37xxx Series SoC Transaction Register (rev 0e)
  00:02.0 VGA compatible controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Graphics & Display (rev 0e)
  00:13.0 SATA controller: Intel Corporation Atom Processor E3800 Series SATA AHCI Controller (rev 0e)
  00:14.0 USB controller: Intel Corporation Atom Processor Z36xxx/Z37xxx, Celeron N2000 Series USB xHCI (rev 0e)
  00:1a.0 Encryption controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Trusted Execution Engine (rev 0e)
  00:1b.0 Audio device: Intel Corporation Atom Processor Z36xxx/Z37xxx Series High Definition Audio Controller (rev 0e)
  00:1c.0 PCI bridge: Intel Corporation Atom Processor E3800 Series PCI Express Root Port 1 (rev 0e)
  00:1c.2 PCI bridge: Intel Corporation Atom Processor E3800 Series PCI Express Root Port 3 (rev 0e)
  00:1f.0 ISA bridge: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Power Control Unit (rev 0e)
  00:1f.3 SMBus: Intel Corporation Atom Processor E3800 Series SMBus Controller (rev 0e)
  03:00.0 Network controller: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter (rev 01)
  
  andrew@andrew-Inspiron-3451:~$ sudo lshw
- andrew-inspiron-3451      
-     description: Computer
-     width: 64 bits
-     capabilities: smbios-2.8 vsyscall32
-   *-core
-        description: Motherboard
-        physical id: 0
-      *-memory
-           description: System memory
-           physical id: 0
-           size: 3834MiB
-      *-cpu
-           product: Intel(R) Pentium(R) CPU  N3540  @ 2.16GHz
-           vendor: Intel Corp.
-           physical id: 1
-           bus info: cpu@0
-           size: 909MHz
-           capacity: 2665MHz
-           width: 64 bits
-           capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp x86-64 constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 movbe popcnt tsc_deadline_timer rdrand lahf_lm 3dnowprefetch epb tpr_shadow vnmi flexpriority ept vpid tsc_adjust smep erms dtherm ida arat cpufreq
-      *-pci
-           description: Host bridge
-           product: Atom Processor Z36xxx/Z37xxx Series SoC Transaction Register
-           vendor: Intel Corporation
-           physical id: 100
-           bus info: pci@0000:00:00.0
-           version: 0e
-           width: 32 bits
-           clock: 33MHz
-           configuration: driver=iosf_mbi_pci
-           resources: irq:0
-         *-display
-              description: VGA compatible controller
-              product: Atom Processor Z36xxx/Z37xxx Series Graphics & Display
-              vendor: Intel Corporation
-              physical id: 2
-              bus info: pci@0000:00:02.0
-              version: 0e
-              width: 32 bits
-              clock: 33MHz
-              capabilities: pm msi vga_controller bus_master cap_list rom
-              configuration: driver=i915 latency=0
-              resources: irq:89 memory:d0000000-d03fffff memory:c0000000-cfffffff ioport:f080(size=8)
-         *-storage
-              description: SATA controller
-              product: Atom Processor E3800 Series SATA AHCI Controller
-              vendor: Intel Corporation
-              physical id: 13
-              bus info: pci@0000:00:13.0
-              version: 0e
-              width: 32 bits
-              clock: 66MHz
-              capabilities: storage msi pm ahci_1.0 bus_master cap_list
-              configuration: driver=ahci latency=0
-              resources: irq:88 ioport:f070(size=8) ioport:f060(size=4) ioport:f050(size=8) ioport:f040(size=4) ioport:f020(size=32) memory:d071c000-d071c7ff
-         *-usb
-              description: USB controller
-              product: Atom Processor Z36xxx/Z37xxx, Celeron N2000 Series USB xHCI
-              vendor: Intel Corporation
-              physical id: 14
-              bus info: pci@0000:00:14.0
-              version: 0e
-              width: 64 bits
-              clock: 33MHz
-              capabilities: pm msi xhci bus_master cap_list
-              configuration: driver=xhci_hcd latency=0
-              resources: irq:87 memory:d0700000-d070ffff
-            *-usbhost:0
-                 product: xHCI Host Controller
-                 vendor: Linux 4.4.0-21-generic xhci-hcd
-                 physical id: 0
-                 bus info: usb@2
-                 logical name: usb2
-                 version: 4.04
-                 capabilities: usb-3.00
-                 configuration: driver=hub slots=1 speed=5000Mbit/s
-            *-usbhost:1
-                 product: xHCI Host Controller
-                 vendor: Linux 4.4.0-21-generic xhci-hcd
-                 physical id: 1
-                 bus info: usb@1
-                 logical name: usb1
-                 version: 4.04
-                 capabilities: usb-2.00
-                 configuration: driver=hub slots=6 speed=480Mbit/s
-               *-usb:0
-                    description: USB hub
-                    product: USB2.0 Hub
-                    vendor: Genesys Logic, Inc.
-                    physical id: 2
-                    bus info: usb@1:2
-                    version: 85.37
-                    capabilities: usb-2.00
-                    configuration: driver=hub maxpower=100mA slots=4 speed=480Mbit/s
-                  *-usb:0
-                       description: Bluetooth wireless interface
-                       vendor: Atheros Communications, Inc.
-                       physical id: 1
-                       bus info: usb@1:2.1
-                       version: 0.02
-                       capabilities: bluetooth usb-1.10
-                       configuration: driver=btusb maxpower=100mA speed=12Mbit/s
-                  *-usb:1
-                       description: Generic USB device
-                       product: USB2.0-CRW
-                       vendor: Generic
-                       physical id: 4
-                       bus info: usb@1:2.4
-                       version: 39.60
-                       serial: 20100201396000000
-                       capabilities: usb-2.00
-                       configuration: driver=rtsx_usb maxpower=500mA speed=480Mbit/s
-               *-usb:1
-                    description: Video
-                    product: Integrated_Webcam_HD
-                    vendor: CN0CVRNR72487536B0CCA00
-                    physical id: 4
-                    bus info: usb@1:4
-                    version: 40.31
-                    serial: 200901010001
-                    capabilities: usb-2.00
-                    configuration: driver=uvcvideo maxpower=500mA speed=480Mbit/s
-         *-generic
-              description: Encryption controller
-              product: Atom Processor Z36xxx/Z37xxx Series Trusted Execution Engine
-              vendor: Intel Corporation
-              physical id: 1a
-              bus info: pci@0000:00:1a.0
-              version: 0e
-              width: 32 bits
-              clock: 33MHz
-              capabilities: pm msi bus_master cap_list
-              configuration: driver=mei_txe latency=0
-              resources: irq:90 memory:d0500000-d05fffff memory:d0400000-d04fffff
-         *-multimedia
-              description: Audio device
-              product: Atom Processor Z36xxx/Z37xxx Series High Definition Audio Controller
-              vendor: Intel Corporation
-              physical id: 1b
-              bus info: pci@0000:00:1b.0
-              version: 0e
-              width: 64 bits
-              clock: 33MHz
-              capabilities: pm msi bus_master cap_list
-              configuration: driver=snd_hda_intel latency=0
-              resources: irq:91 memory:d0710000-d0713fff
-         *-pci:0
-              description: PCI bridge
-              product: Atom Processor E3800 Series PCI Express Root Port 1
-              vendor: Intel Corporation
-              physical id: 1c
-              bus info: pci@0000:00:1c.0
-              version: 0e
-              width: 32 bits
-              clock: 33MHz
-              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
-              configuration: driver=pcieport
-              resources: irq:16 ioport:1000(size=4096)
-         *-pci:1
-              description: PCI bridge
-              product: Atom Processor E3800 Series PCI Express Root Port 3
-              vendor: Intel Corporation
-              physical id: 1c.2
-              bus info: pci@0000:00:1c.2
-              version: 0e
-              width: 32 bits
-              clock: 33MHz
-              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
-              configuration: driver=pcieport
-              resources: irq:18 memory:d0600000-d06fffff
-            *-network
-                 description: Wireless interface
-                 product: QCA9565 / AR9565 Wireless Network Adapter
-                 vendor: Qualcomm Atheros
-                 physical id: 0
-                 bus info: pci@0000:03:00.0
-                 logical name: wlan0
-                 version: 01
-                 serial: 4c:bb:58:b9:91:9c
-                 width: 64 bits
-                 clock: 33MHz
-                 capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless
-                 configuration: broadcast=yes driver=ath9k driverversion=4.4.0-21-generic firmware=N/A ip=192.168.0.191 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
-                 resources: irq:18 memory:d0600000-d067ffff memory:d0680000-d068ffff
-         *-isa
-              description: ISA bridge
-              product: Atom Processor Z36xxx/Z37xxx Series Power Control Unit
-              vendor: Intel Corporation
-              physical id: 1f
-              bus info: pci@0000:00:1f.0
-              version: 0e
-              width: 32 bits
-              clock: 33MHz
-              capabilities: isa bus_master cap_list
-              configuration: driver=lpc_ich latency=0
-              resources: irq:0
-         *-serial UNCLAIMED
-              description: SMBus
-              product: Atom Processor E3800 Series SMBus Controller
-              vendor: Intel Corporation
-              physical id: 1f.3
-              bus info: pci@0000:00:1f.3
-              version: 0e
-              width: 32 bits
-              clock: 33MHz
-              capabilities: pm cap_list
-              configuration: latency=0
-              resources: memory:d0718000-d071801f ioport:f000(size=32)
-      *-scsi
-           physical id: 2
-           logical name: scsi0
-           capabilities: emulated
-         *-disk
-              description: ATA Disk
-              product: Samsung SSD 850
-              physical id: 0.0.0
-              bus info: scsi@0:0.0.0
-              logical name: /dev/sda
-              version: 1B6Q
-              serial: S21NNSAG517011W
-              size: 232GiB (250GB)
-              capabilities: gpt-1.00 partitioned partitioned:gpt
-              configuration: ansiversion=5 guid=1d673a47-0fd4-4984-a16d-87fb187ee3ae logicalsectorsize=512 sectorsize=512
-            *-volume:0
-                 description: Windows FAT volume
-                 vendor: mkfs.fat
-                 physical id: 1
-                 bus info: scsi@0:0.0.0,1
-                 logical name: /dev/sda1
-                 logical name: /boot/efi
-                 version: FAT32
-                 serial: dcee-496f
-                 size: 510MiB
-                 capacity: 511MiB
-                 capabilities: boot fat initialized
-                 configuration: FATs=2 filesystem=fat mount.fstype=vfat mount.options=rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro state=mounted
-            *-volume:1
-                 description: EXT4 volume
-                 vendor: Linux
-                 physical id: 2
-                 bus info: scsi@0:0.0.0,2
-                 logical name: /dev/sda2
-                 logical name: /
-                 version: 1.0
-                 serial: d01f07be-c906-4024-8eef-a58ba3935298
-                 size: 228GiB
-                 capabilities: journaled extended_attributes large_files huge_files dir_nlink recover extents ext4 ext2 initialized
-                 configuration: created=2015-08-07 20:47:43 filesystem=ext4 lastmountpoint=/ modified=2016-04-26 21:34:02 mount.fstype=ext4 mount.options=rw,relatime,errors=remount-ro,data=ordered mounted=2016-04-26 21:34:02 state=mounted
-            *-volume:2
-                 description: Linux swap volume
-                 vendor: Linux
-                 physical id: 3
-                 bus info: scsi@0:0.0.0,3
-                 logical name: /dev/sda3
-                 version: 1
-                 serial: e8aaee7c-d956-4519-94f0-cf7aad745020
-                 size: 3978MiB
-                 capacity: 3978MiB
-                 capabilities: nofs swap initialized
-                 configuration: filesystem=swap pagesize=4095
- --- 
+ andrew-inspiron-3451
+     description: Computer
+     width: 64 bits
+     capabilities: smbios-2.8 vsyscall32
+   *-core
+        description: Motherboard
+        physical id: 0
+      *-memory
+           description: System memory
+           physical id: 0
+           size: 3834MiB
+      *-cpu
+           product: Intel(R) Pentium(R) CPU  N3540  @ 2.16GHz
+           vendor: Intel Corp.
+           physical id: 1
+           bus info: cpu@0
+           size: 909MHz
+           capacity: 2665MHz
+           width: 64 bits
+           capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp x86-64 constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 movbe popcnt tsc_deadline_timer rdrand lahf_lm 3dnowprefetch epb tpr_shadow vnmi flexpriority ept vpid tsc_adjust smep erms dtherm ida arat cpufreq
+      *-pci
+           description: Host bridge
+           product: Atom Processor Z36xxx/Z37xxx Series SoC Transaction Register
+           vendor: Intel Corporation
+           physical id: 100
+           bus info: pci@0000:00:00.0
+           version: 0e
+           width: 32 bits
+           clock: 33MHz
+           configuration: driver=iosf_mbi_pci
+           resources: irq:0
+         *-display
+              description: VGA compatible controller
+              product: Atom Processor Z36xxx/Z37xxx Series Graphics & Display
+              vendor: Intel Corporation
+              physical id: 2
+              bus info: pci@0000:00:02.0
+              version: 0e
+              width: 32 bits
+              clock: 33MHz
+              capabilities: pm msi vga_controller bus_master cap_list rom
+              configuration: driver=i915 latency=0
+              resources: irq:89 memory:d0000000-d03fffff memory:c0000000-cfffffff ioport:f080(size=8)
+         *-storage
+              description: SATA controller
+              product: Atom Processor E3800 Series SATA AHCI Controller
+              vendor: Intel Corporation
+              physical id: 13
+              bus info: pci@0000:00:13.0
+              version: 0e
+              width: 32 bits
+              clock: 66MHz
+              capabilities: storage msi pm ahci_1.0 bus_master cap_list
+              configuration: driver=ahci latency=0
+              resources: irq:88 ioport:f070(size=8) ioport:f060(size=4) ioport:f050(size=8) ioport:f040(size=4) ioport:f020(size=32) memory:d071c000-d071c7ff
+         *-usb
+              description: USB controller
+              product: Atom Processor Z36xxx/Z37xxx, Celeron N2000 Series USB xHCI
+              vendor: Intel Corporation
+              physical id: 14
+              bus info: pci@0000:00:14.0
+              version: 0e
+              width: 64 bits
+              clock: 33MHz
+              capabilities: pm msi xhci bus_master cap_list
+              configuration: driver=xhci_hcd latency=0
+              resources: irq:87 memory:d0700000-d070ffff
+            *-usbhost:0
+                 product: xHCI Host Controller
+                 vendor: Linux 4.4.0-21-generic xhci-hcd
+                 physical id: 0
+                 bus info: usb@2
+                 logical name: usb2
+                 version: 4.04
+                 capabilities: usb-3.00
+                 configuration: driver=hub slots=1 speed=5000Mbit/s
+            *-usbhost:1
+                 product: xHCI Host Controller
+                 vendor: Linux 4.4.0-21-generic xhci-hcd
+                 physical id: 1
+                 bus info: usb@1
+                 logical name: usb1
+                 version: 4.04
+                 capabilities: usb-2.00
+                 configuration: driver=hub slots=6 speed=480Mbit/s
+               *-usb:0
+                    description: USB hub
+                    product: USB2.0 Hub
+                    vendor: Genesys Logic, Inc.
+                    physical id: 2
+                    bus info: usb@1:2
+                    version: 85.37
+                    capabilities: usb-2.00
+                    configuration: driver=hub maxpower=100mA slots=4 speed=480Mbit/s
+                  *-usb:0
+                       description: Bluetooth wireless interface
+                       vendor: Atheros Communications, Inc.
+                       physical id: 1
+                       bus info: usb@1:2.1
+                       version: 0.02
+                       capabilities: bluetooth usb-1.10
+                       configuration: driver=btusb maxpower=100mA speed=12Mbit/s
+                  *-usb:1
+                       description: Generic USB device
+                       product: USB2.0-CRW
+                       vendor: Generic
+                       physical id: 4
+                       bus info: usb@1:2.4
+                       version: 39.60
+                       serial: 20100201396000000
+                       capabilities: usb-2.00
+                       configuration: driver=rtsx_usb maxpower=500mA speed=480Mbit/s
+               *-usb:1
+                    description: Video
+                    product: Integrated_Webcam_HD
+                    vendor: CN0CVRNR72487536B0CCA00
+                    physical id: 4
+                    bus info: usb@1:4
+                    version: 40.31
+                    serial: 200901010001
+                    capabilities: usb-2.00
+                    configuration: driver=uvcvideo maxpower=500mA speed=480Mbit/s
+         *-generic
+              description: Encryption controller
+              product: Atom Processor Z36xxx/Z37xxx Series Trusted Execution Engine
+              vendor: Intel Corporation
+              physical id: 1a
+              bus info: pci@0000:00:1a.0
+              version: 0e
+              width: 32 bits
+              clock: 33MHz
+              capabilities: pm msi bus_master cap_list
+              configuration: driver=mei_txe latency=0
+              resources: irq:90 memory:d0500000-d05fffff memory:d0400000-d04fffff
+         *-multimedia
+              description: Audio device
+              product: Atom Processor Z36xxx/Z37xxx Series High Definition Audio Controller
+              vendor: Intel Corporation
+              physical id: 1b
+              bus info: pci@0000:00:1b.0
+              version: 0e
+              width: 64 bits
+              clock: 33MHz
+              capabilities: pm msi bus_master cap_list
+              configuration: driver=snd_hda_intel latency=0
+              resources: irq:91 memory:d0710000-d0713fff
+         *-pci:0
+              description: PCI bridge
+              product: Atom Processor E3800 Series PCI Express Root Port 1
+              vendor: Intel Corporation
+              physical id: 1c
+              bus info: pci@0000:00:1c.0
+              version: 0e
+              width: 32 bits
+              clock: 33MHz
+              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
+              configuration: driver=pcieport
+              resources: irq:16 ioport:1000(size=4096)
+         *-pci:1
+              description: PCI bridge
+              product: Atom Processor E3800 Series PCI Express Root Port 3
+              vendor: Intel Corporation
+              physical id: 1c.2
+              bus info: pci@0000:00:1c.2
+              version: 0e
+              width: 32 bits
+              clock: 33MHz
+              capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
+              configuration: driver=pcieport
+              resources: irq:18 memory:d0600000-d06fffff
+            *-network
+                 description: Wireless interface
+                 product: QCA9565 / AR9565 Wireless Network Adapter
+                 vendor: Qualcomm Atheros
+                 physical id: 0
+                 bus info: pci@0000:03:00.0
+                 logical name: wlan0
+                 version: 01
+                 serial: 4c:bb:58:b9:91:9c
+                 width: 64 bits
+                 clock: 33MHz
+                 capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless
+                 configuration: broadcast=yes driver=ath9k driverversion=4.4.0-21-generic firmware=N/A ip=192.168.0.191 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
+                 resources: irq:18 memory:d0600000-d067ffff memory:d0680000-d068ffff
+         *-isa
+              description: ISA bridge
+              product: Atom Processor Z36xxx/Z37xxx Series Power Control Unit
+              vendor: Intel Corporation
+              physical id: 1f
+              bus info: pci@0000:00:1f.0
+              version: 0e
+              width: 32 bits
+              clock: 33MHz
+              capabilities: isa bus_master cap_list
+              configuration: driver=lpc_ich latency=0
+              resources: irq:0
+         *-serial UNCLAIMED
+              description: SMBus
+              product: Atom Processor E3800 Series SMBus Controller
+              vendor: Intel Corporation
+              physical id: 1f.3
+              bus info: pci@0000:00:1f.3
+              version: 0e
+              width: 32 bits
+              clock: 33MHz
+              capabilities: pm cap_list
+              configuration: latency=0
+              resources: memory:d0718000-d071801f ioport:f000(size=32)
+      *-scsi
+           physical id: 2
+           logical name: scsi0
+           capabilities: emulated
+         *-disk
+              description: ATA Disk
+              product: Samsung SSD 850
+              physical id: 0.0.0
+              bus info: scsi@0:0.0.0
+              logical name: /dev/sda
+              version: 1B6Q
+              serial: S21NNSAG517011W
+              size: 232GiB (250GB)
+              capabilities: gpt-1.00 partitioned partitioned:gpt
+              configuration: ansiversion=5 guid=1d673a47-0fd4-4984-a16d-87fb187ee3ae logicalsectorsize=512 sectorsize=512
+            *-volume:0
+                 description: Windows FAT volume
+                 vendor: mkfs.fat
+                 physical id: 1
+                 bus info: scsi@0:0.0.0,1
+                 logical name: /dev/sda1
+                 logical name: /boot/efi
+                 version: FAT32
+                 serial: dcee-496f
+                 size: 510MiB
+                 capacity: 511MiB
+                 capabilities: boot fat initialized
+                 configuration: FATs=2 filesystem=fat mount.fstype=vfat mount.options=rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro state=mounted
+            *-volume:1
+                 description: EXT4 volume
+                 vendor: Linux
+                 physical id: 2
+                 bus info: scsi@0:0.0.0,2
+                 logical name: /dev/sda2
+                 logical name: /
+                 version: 1.0
+                 serial: d01f07be-c906-4024-8eef-a58ba3935298
+                 size: 228GiB
+                 capabilities: journaled extended_attributes large_files huge_files dir_nlink recover extents ext4 ext2 initialized
+                 configuration: created=2015-08-07 20:47:43 filesystem=ext4 lastmountpoint=/ modified=2016-04-26 21:34:02 mount.fstype=ext4 mount.options=rw,relatime,errors=remount-ro,data=ordered mounted=2016-04-26 21:34:02 state=mounted
+            *-volume:2
+                 description: Linux swap volume
+                 vendor: Linux
+                 physical id: 3
+                 bus info: scsi@0:0.0.0,3
+                 logical name: /dev/sda3
+                 version: 1
+                 serial: e8aaee7c-d956-4519-94f0-cf7aad745020
+                 size: 3978MiB
+                 capacity: 3978MiB
+                 capabilities: nofs swap initialized
+                 configuration: filesystem=swap pagesize=4095
+ ---
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
-  USER        PID ACCESS COMMAND
-  /dev/snd/controlC0:  andrew     1949 F.... pulseaudio
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC0:  andrew     1949 F.... pulseaudio
  DistroRelease: Ubuntu 16.04
  HibernationDevice: RESUME=UUID=e8aaee7c-d956-4519-94f0-cf7aad745020
  InstallationDate: Installed on 2015-08-08 (263 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  MachineType: Dell Inc. Inspiron 3451
  Package: linux (not installed)
  ProcEnviron:
-  LANGUAGE=en_US
-  TERM=xterm-256color
-  PATH=(custom, no user)
-  LANG=en_US.UTF-8
-  SHELL=/bin/bash
+  LANGUAGE=en_US
+  TERM=xterm-256color
+  PATH=(custom, no user)
+  LANG=en_US.UTF-8
+  SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-21-generic.efi.signed root=UUID=d01f07be-c906-4024-8eef-a58ba3935298 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
  PulseList:
-  Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
-  No PulseAudio daemon running, or not running as session daemon.
+  Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
+  No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
-  linux-restricted-modules-4.4.0-21-generic N/A
-  linux-backports-modules-4.4.0-21-generic  N/A
-  linux-firmware                            1.157
+  linux-restricted-modules-4.4.0-21-generic N/A
+  linux-backports-modules-4.4.0-21-generic  N/A
+  linux-firmware                            1.157
  Tags:  xenial
  Uname: Linux 4.4.0-21-generic x86_64
  UpgradeStatus: Upgraded to xenial on 2016-04-22 (4 days ago)
  UserGroups:
-  
+ 
  _MarkForUpload: True
  dmi.bios.date: 12/05/2014
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A00
  dmi.board.name: 0H4MK6
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: Not Specified
  dmi.modalias: dmi:bvnDellInc.:bvrA00:bd12/05/2014:svnDellInc.:pnInspiron3451:pvrA00:rvnDellInc.:rn0H4MK6:rvrA00:cvnDellInc.:ct8:cvrNotSpecified:
  dmi.product.name: Inspiron 3451
  dmi.product.version: A00
  dmi.sys.vendor: Dell Inc.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1575467

Title:
  Ubuntu 16.04 consistently freezes up / hangs

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Not sure what package this is related to. I honestly have no idea.
  After upgrading from stock Ubuntu 14.04 to 16.04 on my Dell Inspiron
  laptop consistently freezes up and is unresponsive keyboard or mouse.
  The only way is to do a hard shutdown. I'm usually in a browser when
  this happens, and often watching a video or two. So i wonder if this
  has something to do with my memory buffer or something. It seems to
  happen more often in Google Chrome than Firefox, but it happens with
  both. I know Google Chrome uses more memory though. And it has
  happened at least once with no videos loaded, so i doubt it's some
  sort of weird flash issue. I haven’t observed it freeze / hang when
  I’m not in a browser, but that's mainly what i use my laptop for, so
  that's where most of my time is spent.

  I will try to upload any log files that people think may be useful. I
  will see if i can do the recommended ssh monitoring method while
  trying to reproduce it to see if i can see an error that way.

  Not sure if this hardware info helps:
  lspci reports:
  00:00.0 Host bridge: Intel Corporation Atom Processor Z36xxx/Z37xxx Series SoC Transaction Register (rev 0e)
  00:02.0 VGA compatible controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Graphics & Display (rev 0e)
  00:13.0 SATA controller: Intel Corporation Atom Processor E3800 Series SATA AHCI Controller (rev 0e)
  00:14.0 USB controller: Intel Corporation Atom Processor Z36xxx/Z37xxx, Celeron N2000 Series USB xHCI (rev 0e)
  00:1a.0 Encryption controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Trusted Execution Engine (rev 0e)
  00:1b.0 Audio device: Intel Corporation Atom Processor Z36xxx/Z37xxx Series High Definition Audio Controller (rev 0e)
  00:1c.0 PCI bridge: Intel Corporation Atom Processor E3800 Series PCI Express Root Port 1 (rev 0e)
  00:1c.2 PCI bridge: Intel Corporation Atom Processor E3800 Series PCI Express Root Port 3 (rev 0e)
  00:1f.0 ISA bridge: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Power Control Unit (rev 0e)
  00:1f.3 SMBus: Intel Corporation Atom Processor E3800 Series SMBus Controller (rev 0e)
  03:00.0 Network controller: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter (rev 01)

  andrew@andrew-Inspiron-3451:~$ sudo lshw
  andrew-inspiron-3451
      description: Computer
      width: 64 bits
      capabilities: smbios-2.8 vsyscall32
    *-core
         description: Motherboard
         physical id: 0
       *-memory
            description: System memory
            physical id: 0
            size: 3834MiB
       *-cpu
            product: Intel(R) Pentium(R) CPU  N3540  @ 2.16GHz
            vendor: Intel Corp.
            physical id: 1
            bus info: cpu@0
            size: 909MHz
            capacity: 2665MHz
            width: 64 bits
            capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp x86-64 constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 movbe popcnt tsc_deadline_timer rdrand lahf_lm 3dnowprefetch epb tpr_shadow vnmi flexpriority ept vpid tsc_adjust smep erms dtherm ida arat cpufreq
       *-pci
            description: Host bridge
            product: Atom Processor Z36xxx/Z37xxx Series SoC Transaction Register
            vendor: Intel Corporation
            physical id: 100
            bus info: pci@0000:00:00.0
            version: 0e
            width: 32 bits
            clock: 33MHz
            configuration: driver=iosf_mbi_pci
            resources: irq:0
          *-display
               description: VGA compatible controller
               product: Atom Processor Z36xxx/Z37xxx Series Graphics & Display
               vendor: Intel Corporation
               physical id: 2
               bus info: pci@0000:00:02.0
               version: 0e
               width: 32 bits
               clock: 33MHz
               capabilities: pm msi vga_controller bus_master cap_list rom
               configuration: driver=i915 latency=0
               resources: irq:89 memory:d0000000-d03fffff memory:c0000000-cfffffff ioport:f080(size=8)
          *-storage
               description: SATA controller
               product: Atom Processor E3800 Series SATA AHCI Controller
               vendor: Intel Corporation
               physical id: 13
               bus info: pci@0000:00:13.0
               version: 0e
               width: 32 bits
               clock: 66MHz
               capabilities: storage msi pm ahci_1.0 bus_master cap_list
               configuration: driver=ahci latency=0
               resources: irq:88 ioport:f070(size=8) ioport:f060(size=4) ioport:f050(size=8) ioport:f040(size=4) ioport:f020(size=32) memory:d071c000-d071c7ff
          *-usb
               description: USB controller
               product: Atom Processor Z36xxx/Z37xxx, Celeron N2000 Series USB xHCI
               vendor: Intel Corporation
               physical id: 14
               bus info: pci@0000:00:14.0
               version: 0e
               width: 64 bits
               clock: 33MHz
               capabilities: pm msi xhci bus_master cap_list
               configuration: driver=xhci_hcd latency=0
               resources: irq:87 memory:d0700000-d070ffff
             *-usbhost:0
                  product: xHCI Host Controller
                  vendor: Linux 4.4.0-21-generic xhci-hcd
                  physical id: 0
                  bus info: usb@2
                  logical name: usb2
                  version: 4.04
                  capabilities: usb-3.00
                  configuration: driver=hub slots=1 speed=5000Mbit/s
             *-usbhost:1
                  product: xHCI Host Controller
                  vendor: Linux 4.4.0-21-generic xhci-hcd
                  physical id: 1
                  bus info: usb@1
                  logical name: usb1
                  version: 4.04
                  capabilities: usb-2.00
                  configuration: driver=hub slots=6 speed=480Mbit/s
                *-usb:0
                     description: USB hub
                     product: USB2.0 Hub
                     vendor: Genesys Logic, Inc.
                     physical id: 2
                     bus info: usb@1:2
                     version: 85.37
                     capabilities: usb-2.00
                     configuration: driver=hub maxpower=100mA slots=4 speed=480Mbit/s
                   *-usb:0
                        description: Bluetooth wireless interface
                        vendor: Atheros Communications, Inc.
                        physical id: 1
                        bus info: usb@1:2.1
                        version: 0.02
                        capabilities: bluetooth usb-1.10
                        configuration: driver=btusb maxpower=100mA speed=12Mbit/s
                   *-usb:1
                        description: Generic USB device
                        product: USB2.0-CRW
                        vendor: Generic
                        physical id: 4
                        bus info: usb@1:2.4
                        version: 39.60
                        serial: 20100201396000000
                        capabilities: usb-2.00
                        configuration: driver=rtsx_usb maxpower=500mA speed=480Mbit/s
                *-usb:1
                     description: Video
                     product: Integrated_Webcam_HD
                     vendor: CN0CVRNR72487536B0CCA00
                     physical id: 4
                     bus info: usb@1:4
                     version: 40.31
                     serial: 200901010001
                     capabilities: usb-2.00
                     configuration: driver=uvcvideo maxpower=500mA speed=480Mbit/s
          *-generic
               description: Encryption controller
               product: Atom Processor Z36xxx/Z37xxx Series Trusted Execution Engine
               vendor: Intel Corporation
               physical id: 1a
               bus info: pci@0000:00:1a.0
               version: 0e
               width: 32 bits
               clock: 33MHz
               capabilities: pm msi bus_master cap_list
               configuration: driver=mei_txe latency=0
               resources: irq:90 memory:d0500000-d05fffff memory:d0400000-d04fffff
          *-multimedia
               description: Audio device
               product: Atom Processor Z36xxx/Z37xxx Series High Definition Audio Controller
               vendor: Intel Corporation
               physical id: 1b
               bus info: pci@0000:00:1b.0
               version: 0e
               width: 64 bits
               clock: 33MHz
               capabilities: pm msi bus_master cap_list
               configuration: driver=snd_hda_intel latency=0
               resources: irq:91 memory:d0710000-d0713fff
          *-pci:0
               description: PCI bridge
               product: Atom Processor E3800 Series PCI Express Root Port 1
               vendor: Intel Corporation
               physical id: 1c
               bus info: pci@0000:00:1c.0
               version: 0e
               width: 32 bits
               clock: 33MHz
               capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
               configuration: driver=pcieport
               resources: irq:16 ioport:1000(size=4096)
          *-pci:1
               description: PCI bridge
               product: Atom Processor E3800 Series PCI Express Root Port 3
               vendor: Intel Corporation
               physical id: 1c.2
               bus info: pci@0000:00:1c.2
               version: 0e
               width: 32 bits
               clock: 33MHz
               capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
               configuration: driver=pcieport
               resources: irq:18 memory:d0600000-d06fffff
             *-network
                  description: Wireless interface
                  product: QCA9565 / AR9565 Wireless Network Adapter
                  vendor: Qualcomm Atheros
                  physical id: 0
                  bus info: pci@0000:03:00.0
                  logical name: wlan0
                  version: 01
                  serial: 4c:bb:58:b9:91:9c
                  width: 64 bits
                  clock: 33MHz
                  capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless
                  configuration: broadcast=yes driver=ath9k driverversion=4.4.0-21-generic firmware=N/A ip=192.168.0.191 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
                  resources: irq:18 memory:d0600000-d067ffff memory:d0680000-d068ffff
          *-isa
               description: ISA bridge
               product: Atom Processor Z36xxx/Z37xxx Series Power Control Unit
               vendor: Intel Corporation
               physical id: 1f
               bus info: pci@0000:00:1f.0
               version: 0e
               width: 32 bits
               clock: 33MHz
               capabilities: isa bus_master cap_list
               configuration: driver=lpc_ich latency=0
               resources: irq:0
          *-serial UNCLAIMED
               description: SMBus
               product: Atom Processor E3800 Series SMBus Controller
               vendor: Intel Corporation
               physical id: 1f.3
               bus info: pci@0000:00:1f.3
               version: 0e
               width: 32 bits
               clock: 33MHz
               capabilities: pm cap_list
               configuration: latency=0
               resources: memory:d0718000-d071801f ioport:f000(size=32)
       *-scsi
            physical id: 2
            logical name: scsi0
            capabilities: emulated
          *-disk
               description: ATA Disk
               product: Samsung SSD 850
               physical id: 0.0.0
               bus info: scsi@0:0.0.0
               logical name: /dev/sda
               version: 1B6Q
               serial: S21NNSAG517011W
               size: 232GiB (250GB)
               capabilities: gpt-1.00 partitioned partitioned:gpt
               configuration: ansiversion=5 guid=1d673a47-0fd4-4984-a16d-87fb187ee3ae logicalsectorsize=512 sectorsize=512
             *-volume:0
                  description: Windows FAT volume
                  vendor: mkfs.fat
                  physical id: 1
                  bus info: scsi@0:0.0.0,1
                  logical name: /dev/sda1
                  logical name: /boot/efi
                  version: FAT32
                  serial: dcee-496f
                  size: 510MiB
                  capacity: 511MiB
                  capabilities: boot fat initialized
                  configuration: FATs=2 filesystem=fat mount.fstype=vfat mount.options=rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro state=mounted
             *-volume:1
                  description: EXT4 volume
                  vendor: Linux
                  physical id: 2
                  bus info: scsi@0:0.0.0,2
                  logical name: /dev/sda2
                  logical name: /
                  version: 1.0
                  serial: d01f07be-c906-4024-8eef-a58ba3935298
                  size: 228GiB
                  capabilities: journaled extended_attributes large_files huge_files dir_nlink recover extents ext4 ext2 initialized
                  configuration: created=2015-08-07 20:47:43 filesystem=ext4 lastmountpoint=/ modified=2016-04-26 21:34:02 mount.fstype=ext4 mount.options=rw,relatime,errors=remount-ro,data=ordered mounted=2016-04-26 21:34:02 state=mounted
             *-volume:2
                  description: Linux swap volume
                  vendor: Linux
                  physical id: 3
                  bus info: scsi@0:0.0.0,3
                  logical name: /dev/sda3
                  version: 1
                  serial: e8aaee7c-d956-4519-94f0-cf7aad745020
                  size: 3978MiB
                  capacity: 3978MiB
                  capabilities: nofs swap initialized
                  configuration: filesystem=swap pagesize=4095
  ---
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  andrew     1949 F.... pulseaudio
  DistroRelease: Ubuntu 16.04
  HibernationDevice: RESUME=UUID=e8aaee7c-d956-4519-94f0-cf7aad745020
  InstallationDate: Installed on 2015-08-08 (263 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  MachineType: Dell Inc. Inspiron 3451
  Package: linux (not installed)
  ProcEnviron:
   LANGUAGE=en_US
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-21-generic.efi.signed root=UUID=d01f07be-c906-4024-8eef-a58ba3935298 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-21-generic N/A
   linux-backports-modules-4.4.0-21-generic  N/A
   linux-firmware                            1.157
  Tags:  xenial
  Uname: Linux 4.4.0-21-generic x86_64
  UpgradeStatus: Upgraded to xenial on 2016-04-22 (4 days ago)
  UserGroups:

  _MarkForUpload: True
  dmi.bios.date: 12/05/2014
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A00
  dmi.board.name: 0H4MK6
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: Not Specified
  dmi.modalias: dmi:bvnDellInc.:bvrA00:bd12/05/2014:svnDellInc.:pnInspiron3451:pvrA00:rvnDellInc.:rn0H4MK6:rvrA00:cvnDellInc.:ct8:cvrNotSpecified:
  dmi.product.name: Inspiron 3451
  dmi.product.version: A00
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1575467/+subscriptions