[Kernel-packages] [Bug 1247647] Re: Kernel oops during btrfs access
[Expired for linux (Ubuntu) because there has been no activity for 60 days.] ** Changed in: linux (Ubuntu) Status: Incomplete = Expired -- 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/1247647 Title: Kernel oops during btrfs access Status in “linux” package in Ubuntu: Expired Bug description: cat /proc/version_signature Ubuntu 3.11.0-12.19-generic 3.11.3 root@ubuntunas:~# sudo lspci -vnvn 00:00.0 Host bridge [0600]: Intel Corporation 440FX - 82441FX PMC [Natoma] [8086:1237] (rev 02) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- 00:01.0 ISA bridge [0601]: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II] [8086:7000] Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- INTx- 00:01.1 IDE interface [0101]: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II] [8086:7010] (prog-if 80 [Master]) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- INTx- Latency: 0 Region 0: [virtual] Memory at 01f0 (32-bit, non-prefetchable) [size=8] Region 1: [virtual] Memory at 03f0 (type 3, non-prefetchable) [size=1] Region 2: [virtual] Memory at 0170 (32-bit, non-prefetchable) [size=8] Region 3: [virtual] Memory at 0370 (type 3, non-prefetchable) [size=1] Region 4: I/O ports at c160 [size=16] Kernel driver in use: ata_piix 00:01.2 USB controller [0c03]: Intel Corporation 82371SB PIIX3 USB [Natoma/Triton II] [8086:7020] (rev 01) (prog-if 00 [UHCI]) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- Latency: 0 Interrupt: pin D routed to IRQ 11 Region 4: I/O ports at c100 [size=32] Kernel driver in use: uhci_hcd 00:01.3 Bridge [0680]: Intel Corporation 82371AB/EB/MB PIIX4 ACPI [8086:7113] (rev 03) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- INTx- Interrupt: pin A routed to IRQ 9 Kernel driver in use: piix4_smbus 00:02.0 VGA compatible controller [0300]: Cirrus Logic GD 5446 [1013:00b8] (prog-if 00 [VGA controller]) Subsystem: Red Hat, Inc Device [1af4:1100] Physical Slot: 2 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- Region 0: Memory at fc00 (32-bit, prefetchable) [size=32M] Region 1: Memory at febf (32-bit, non-prefetchable) [size=4K] Expansion ROM at febd [disabled] [size=64K] Kernel driver in use: cirrus 00:03.0 Ethernet controller [0200]: Red Hat, Inc Virtio network device [1af4:1000] Subsystem: Red Hat, Inc Device [1af4:0001] Physical Slot: 3 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 10 Region 0: I/O ports at c120 [size=32] Region 1: Memory at febf1000 (32-bit, non-prefetchable) [size=4K] Expansion ROM at febe [disabled] [size=64K] Capabilities: [40] MSI-X: Enable+ Count=3 Masked- Vector table: BAR=1 offset= PBA: BAR=1 offset=0800 Kernel driver in use: virtio-pci 00:04.0 SCSI storage controller [0100]: Red Hat, Inc Virtio block device [1af4:1001] Subsystem: Red Hat, Inc Device [1af4:0002] Physical Slot: 4 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+
[Kernel-packages] [Bug 1247647] Re: Kernel oops during btrfs access
** Changed in: linux (Ubuntu) Status: Confirmed = Incomplete -- 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/1247647 Title: Kernel oops during btrfs access Status in “linux” package in Ubuntu: Incomplete Bug description: cat /proc/version_signature Ubuntu 3.11.0-12.19-generic 3.11.3 root@ubuntunas:~# sudo lspci -vnvn 00:00.0 Host bridge [0600]: Intel Corporation 440FX - 82441FX PMC [Natoma] [8086:1237] (rev 02) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- 00:01.0 ISA bridge [0601]: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II] [8086:7000] Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- INTx- 00:01.1 IDE interface [0101]: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II] [8086:7010] (prog-if 80 [Master]) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- INTx- Latency: 0 Region 0: [virtual] Memory at 01f0 (32-bit, non-prefetchable) [size=8] Region 1: [virtual] Memory at 03f0 (type 3, non-prefetchable) [size=1] Region 2: [virtual] Memory at 0170 (32-bit, non-prefetchable) [size=8] Region 3: [virtual] Memory at 0370 (type 3, non-prefetchable) [size=1] Region 4: I/O ports at c160 [size=16] Kernel driver in use: ata_piix 00:01.2 USB controller [0c03]: Intel Corporation 82371SB PIIX3 USB [Natoma/Triton II] [8086:7020] (rev 01) (prog-if 00 [UHCI]) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- Latency: 0 Interrupt: pin D routed to IRQ 11 Region 4: I/O ports at c100 [size=32] Kernel driver in use: uhci_hcd 00:01.3 Bridge [0680]: Intel Corporation 82371AB/EB/MB PIIX4 ACPI [8086:7113] (rev 03) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- INTx- Interrupt: pin A routed to IRQ 9 Kernel driver in use: piix4_smbus 00:02.0 VGA compatible controller [0300]: Cirrus Logic GD 5446 [1013:00b8] (prog-if 00 [VGA controller]) Subsystem: Red Hat, Inc Device [1af4:1100] Physical Slot: 2 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- Region 0: Memory at fc00 (32-bit, prefetchable) [size=32M] Region 1: Memory at febf (32-bit, non-prefetchable) [size=4K] Expansion ROM at febd [disabled] [size=64K] Kernel driver in use: cirrus 00:03.0 Ethernet controller [0200]: Red Hat, Inc Virtio network device [1af4:1000] Subsystem: Red Hat, Inc Device [1af4:0001] Physical Slot: 3 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 10 Region 0: I/O ports at c120 [size=32] Region 1: Memory at febf1000 (32-bit, non-prefetchable) [size=4K] Expansion ROM at febe [disabled] [size=64K] Capabilities: [40] MSI-X: Enable+ Count=3 Masked- Vector table: BAR=1 offset= PBA: BAR=1 offset=0800 Kernel driver in use: virtio-pci 00:04.0 SCSI storage controller [0100]: Red Hat, Inc Virtio block device [1af4:1001] Subsystem: Red Hat, Inc Device [1af4:0002] Physical Slot: 4 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR-
[Kernel-packages] [Bug 1247647] Re: Kernel oops during btrfs access
Did this issue start happening after an update/upgrade? Was there a kernel version where you were not having this particular problem? This will help determine if the problem you are seeing is the result of the introduction of a regression, and when this regression was introduced. If this is a regression, we can perform a kernel bisect to identify the commit that introduced the problem. ** Changed in: linux (Ubuntu) Importance: Undecided = Medium ** Tags added: kernel-da-key -- 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/1247647 Title: Kernel oops during btrfs access Status in “linux” package in Ubuntu: Confirmed Bug description: cat /proc/version_signature Ubuntu 3.11.0-12.19-generic 3.11.3 root@ubuntunas:~# sudo lspci -vnvn 00:00.0 Host bridge [0600]: Intel Corporation 440FX - 82441FX PMC [Natoma] [8086:1237] (rev 02) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- 00:01.0 ISA bridge [0601]: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II] [8086:7000] Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- INTx- 00:01.1 IDE interface [0101]: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II] [8086:7010] (prog-if 80 [Master]) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- INTx- Latency: 0 Region 0: [virtual] Memory at 01f0 (32-bit, non-prefetchable) [size=8] Region 1: [virtual] Memory at 03f0 (type 3, non-prefetchable) [size=1] Region 2: [virtual] Memory at 0170 (32-bit, non-prefetchable) [size=8] Region 3: [virtual] Memory at 0370 (type 3, non-prefetchable) [size=1] Region 4: I/O ports at c160 [size=16] Kernel driver in use: ata_piix 00:01.2 USB controller [0c03]: Intel Corporation 82371SB PIIX3 USB [Natoma/Triton II] [8086:7020] (rev 01) (prog-if 00 [UHCI]) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- Latency: 0 Interrupt: pin D routed to IRQ 11 Region 4: I/O ports at c100 [size=32] Kernel driver in use: uhci_hcd 00:01.3 Bridge [0680]: Intel Corporation 82371AB/EB/MB PIIX4 ACPI [8086:7113] (rev 03) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- INTx- Interrupt: pin A routed to IRQ 9 Kernel driver in use: piix4_smbus 00:02.0 VGA compatible controller [0300]: Cirrus Logic GD 5446 [1013:00b8] (prog-if 00 [VGA controller]) Subsystem: Red Hat, Inc Device [1af4:1100] Physical Slot: 2 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- Region 0: Memory at fc00 (32-bit, prefetchable) [size=32M] Region 1: Memory at febf (32-bit, non-prefetchable) [size=4K] Expansion ROM at febd [disabled] [size=64K] Kernel driver in use: cirrus 00:03.0 Ethernet controller [0200]: Red Hat, Inc Virtio network device [1af4:1000] Subsystem: Red Hat, Inc Device [1af4:0001] Physical Slot: 3 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 10 Region 0: I/O ports at c120 [size=32] Region 1: Memory at febf1000 (32-bit, non-prefetchable) [size=4K] Expansion ROM at febe [disabled] [size=64K] Capabilities: [40] MSI-X: Enable+ Count=3 Masked- Vector table: BAR=1 offset= PBA: BAR=1 offset=0800
[Kernel-packages] [Bug 1247647] Re: Kernel oops during btrfs access
Hi this problem started after the update 13.10 and 3.11.0-11.17-generic see report Bug #1235798. The last working kernel was 3.11.0.7.9 Tell me if an can provide further debug info... -- 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/1247647 Title: Kernel oops during btrfs access Status in “linux” package in Ubuntu: Confirmed Bug description: cat /proc/version_signature Ubuntu 3.11.0-12.19-generic 3.11.3 root@ubuntunas:~# sudo lspci -vnvn 00:00.0 Host bridge [0600]: Intel Corporation 440FX - 82441FX PMC [Natoma] [8086:1237] (rev 02) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- 00:01.0 ISA bridge [0601]: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II] [8086:7000] Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- INTx- 00:01.1 IDE interface [0101]: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II] [8086:7010] (prog-if 80 [Master]) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- INTx- Latency: 0 Region 0: [virtual] Memory at 01f0 (32-bit, non-prefetchable) [size=8] Region 1: [virtual] Memory at 03f0 (type 3, non-prefetchable) [size=1] Region 2: [virtual] Memory at 0170 (32-bit, non-prefetchable) [size=8] Region 3: [virtual] Memory at 0370 (type 3, non-prefetchable) [size=1] Region 4: I/O ports at c160 [size=16] Kernel driver in use: ata_piix 00:01.2 USB controller [0c03]: Intel Corporation 82371SB PIIX3 USB [Natoma/Triton II] [8086:7020] (rev 01) (prog-if 00 [UHCI]) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- Latency: 0 Interrupt: pin D routed to IRQ 11 Region 4: I/O ports at c100 [size=32] Kernel driver in use: uhci_hcd 00:01.3 Bridge [0680]: Intel Corporation 82371AB/EB/MB PIIX4 ACPI [8086:7113] (rev 03) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- INTx- Interrupt: pin A routed to IRQ 9 Kernel driver in use: piix4_smbus 00:02.0 VGA compatible controller [0300]: Cirrus Logic GD 5446 [1013:00b8] (prog-if 00 [VGA controller]) Subsystem: Red Hat, Inc Device [1af4:1100] Physical Slot: 2 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- Region 0: Memory at fc00 (32-bit, prefetchable) [size=32M] Region 1: Memory at febf (32-bit, non-prefetchable) [size=4K] Expansion ROM at febd [disabled] [size=64K] Kernel driver in use: cirrus 00:03.0 Ethernet controller [0200]: Red Hat, Inc Virtio network device [1af4:1000] Subsystem: Red Hat, Inc Device [1af4:0001] Physical Slot: 3 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 10 Region 0: I/O ports at c120 [size=32] Region 1: Memory at febf1000 (32-bit, non-prefetchable) [size=4K] Expansion ROM at febe [disabled] [size=64K] Capabilities: [40] MSI-X: Enable+ Count=3 Masked- Vector table: BAR=1 offset= PBA: BAR=1 offset=0800 Kernel driver in use: virtio-pci 00:04.0 SCSI storage controller [0100]: Red Hat, Inc Virtio block device [1af4:1001] Subsystem: Red Hat, Inc Device [1af4:0002] Physical Slot: 4 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR-
[Kernel-packages] [Bug 1247647] Re: Kernel oops during btrfs access
We can perform a kernel bisect to try and identify the commit that introduced this regression. Would you be able to install some test kernels on this machine? -- 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/1247647 Title: Kernel oops during btrfs access Status in “linux” package in Ubuntu: Confirmed Bug description: cat /proc/version_signature Ubuntu 3.11.0-12.19-generic 3.11.3 root@ubuntunas:~# sudo lspci -vnvn 00:00.0 Host bridge [0600]: Intel Corporation 440FX - 82441FX PMC [Natoma] [8086:1237] (rev 02) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- 00:01.0 ISA bridge [0601]: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II] [8086:7000] Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- INTx- 00:01.1 IDE interface [0101]: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II] [8086:7010] (prog-if 80 [Master]) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- INTx- Latency: 0 Region 0: [virtual] Memory at 01f0 (32-bit, non-prefetchable) [size=8] Region 1: [virtual] Memory at 03f0 (type 3, non-prefetchable) [size=1] Region 2: [virtual] Memory at 0170 (32-bit, non-prefetchable) [size=8] Region 3: [virtual] Memory at 0370 (type 3, non-prefetchable) [size=1] Region 4: I/O ports at c160 [size=16] Kernel driver in use: ata_piix 00:01.2 USB controller [0c03]: Intel Corporation 82371SB PIIX3 USB [Natoma/Triton II] [8086:7020] (rev 01) (prog-if 00 [UHCI]) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- Latency: 0 Interrupt: pin D routed to IRQ 11 Region 4: I/O ports at c100 [size=32] Kernel driver in use: uhci_hcd 00:01.3 Bridge [0680]: Intel Corporation 82371AB/EB/MB PIIX4 ACPI [8086:7113] (rev 03) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- INTx- Interrupt: pin A routed to IRQ 9 Kernel driver in use: piix4_smbus 00:02.0 VGA compatible controller [0300]: Cirrus Logic GD 5446 [1013:00b8] (prog-if 00 [VGA controller]) Subsystem: Red Hat, Inc Device [1af4:1100] Physical Slot: 2 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- Region 0: Memory at fc00 (32-bit, prefetchable) [size=32M] Region 1: Memory at febf (32-bit, non-prefetchable) [size=4K] Expansion ROM at febd [disabled] [size=64K] Kernel driver in use: cirrus 00:03.0 Ethernet controller [0200]: Red Hat, Inc Virtio network device [1af4:1000] Subsystem: Red Hat, Inc Device [1af4:0001] Physical Slot: 3 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 10 Region 0: I/O ports at c120 [size=32] Region 1: Memory at febf1000 (32-bit, non-prefetchable) [size=4K] Expansion ROM at febe [disabled] [size=64K] Capabilities: [40] MSI-X: Enable+ Count=3 Masked- Vector table: BAR=1 offset= PBA: BAR=1 offset=0800 Kernel driver in use: virtio-pci 00:04.0 SCSI storage controller [0100]: Red Hat, Inc Virtio block device [1af4:1001] Subsystem: Red Hat, Inc Device [1af4:0002] Physical Slot: 4 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Re: [Kernel-packages] [Bug 1247647] Re: Kernel oops during btrfs access
I will try. Didn't do kernel tweaks for a long time. Mit freundlichen Grüßen Gregor Suhr On Mon, Nov 4, 2013 at 9:20 PM, Joseph Salisbury joseph.salisb...@canonical.com wrote: We can perform a kernel bisect to try and identify the commit that introduced this regression. Would you be able to install some test kernels on this machine? -- You received this bug notification because you are subscribed to the bug report. https://bugs.launchpad.net/bugs/1247647 Title: Kernel oops during btrfs access Status in “linux” package in Ubuntu: Confirmed Bug description: cat /proc/version_signature Ubuntu 3.11.0-12.19-generic 3.11.3 root@ubuntunas:~# sudo lspci -vnvn 00:00.0 Host bridge [0600]: Intel Corporation 440FX - 82441FX PMC [Natoma] [8086:1237] (rev 02) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- 00:01.0 ISA bridge [0601]: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II] [8086:7000] Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- INTx- 00:01.1 IDE interface [0101]: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II] [8086:7010] (prog-if 80 [Master]) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- INTx- Latency: 0 Region 0: [virtual] Memory at 01f0 (32-bit, non-prefetchable) [size=8] Region 1: [virtual] Memory at 03f0 (type 3, non-prefetchable) [size=1] Region 2: [virtual] Memory at 0170 (32-bit, non-prefetchable) [size=8] Region 3: [virtual] Memory at 0370 (type 3, non-prefetchable) [size=1] Region 4: I/O ports at c160 [size=16] Kernel driver in use: ata_piix 00:01.2 USB controller [0c03]: Intel Corporation 82371SB PIIX3 USB [Natoma/Triton II] [8086:7020] (rev 01) (prog-if 00 [UHCI]) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- Latency: 0 Interrupt: pin D routed to IRQ 11 Region 4: I/O ports at c100 [size=32] Kernel driver in use: uhci_hcd 00:01.3 Bridge [0680]: Intel Corporation 82371AB/EB/MB PIIX4 ACPI [8086:7113] (rev 03) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- INTx- Interrupt: pin A routed to IRQ 9 Kernel driver in use: piix4_smbus 00:02.0 VGA compatible controller [0300]: Cirrus Logic GD 5446 [1013:00b8] (prog-if 00 [VGA controller]) Subsystem: Red Hat, Inc Device [1af4:1100] Physical Slot: 2 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- Region 0: Memory at fc00 (32-bit, prefetchable) [size=32M] Region 1: Memory at febf (32-bit, non-prefetchable) [size=4K] Expansion ROM at febd [disabled] [size=64K] Kernel driver in use: cirrus 00:03.0 Ethernet controller [0200]: Red Hat, Inc Virtio network device [1af4:1000] Subsystem: Red Hat, Inc Device [1af4:0001] Physical Slot: 3 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 10 Region 0: I/O ports at c120 [size=32] Region 1: Memory at febf1000 (32-bit, non-prefetchable) [size=4K] Expansion ROM at febe [disabled] [size=64K] Capabilities: [40] MSI-X: Enable+ Count=3 Masked- Vector table: BAR=1 offset= PBA: BAR=1 offset=0800 Kernel driver in use: virtio-pci 00:04.0 SCSI storage controller [0100]: Red Hat, Inc Virtio
[Kernel-packages] [Bug 1247647] Re: Kernel oops during btrfs access
To start a bisect, we first need to identify the last good kernel version and first bad kernel version. Can you test the following two kernels: v3.10 final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.10-saucy/ v3.11 final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11-saucy/ They can be installed by installing the linux-image .deb package and rebooting. ** Tags added: performing-bisect -- 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/1247647 Title: Kernel oops during btrfs access Status in “linux” package in Ubuntu: Confirmed Bug description: cat /proc/version_signature Ubuntu 3.11.0-12.19-generic 3.11.3 root@ubuntunas:~# sudo lspci -vnvn 00:00.0 Host bridge [0600]: Intel Corporation 440FX - 82441FX PMC [Natoma] [8086:1237] (rev 02) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- 00:01.0 ISA bridge [0601]: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II] [8086:7000] Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- INTx- 00:01.1 IDE interface [0101]: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II] [8086:7010] (prog-if 80 [Master]) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- INTx- Latency: 0 Region 0: [virtual] Memory at 01f0 (32-bit, non-prefetchable) [size=8] Region 1: [virtual] Memory at 03f0 (type 3, non-prefetchable) [size=1] Region 2: [virtual] Memory at 0170 (32-bit, non-prefetchable) [size=8] Region 3: [virtual] Memory at 0370 (type 3, non-prefetchable) [size=1] Region 4: I/O ports at c160 [size=16] Kernel driver in use: ata_piix 00:01.2 USB controller [0c03]: Intel Corporation 82371SB PIIX3 USB [Natoma/Triton II] [8086:7020] (rev 01) (prog-if 00 [UHCI]) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- Latency: 0 Interrupt: pin D routed to IRQ 11 Region 4: I/O ports at c100 [size=32] Kernel driver in use: uhci_hcd 00:01.3 Bridge [0680]: Intel Corporation 82371AB/EB/MB PIIX4 ACPI [8086:7113] (rev 03) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- INTx- Interrupt: pin A routed to IRQ 9 Kernel driver in use: piix4_smbus 00:02.0 VGA compatible controller [0300]: Cirrus Logic GD 5446 [1013:00b8] (prog-if 00 [VGA controller]) Subsystem: Red Hat, Inc Device [1af4:1100] Physical Slot: 2 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- Region 0: Memory at fc00 (32-bit, prefetchable) [size=32M] Region 1: Memory at febf (32-bit, non-prefetchable) [size=4K] Expansion ROM at febd [disabled] [size=64K] Kernel driver in use: cirrus 00:03.0 Ethernet controller [0200]: Red Hat, Inc Virtio network device [1af4:1000] Subsystem: Red Hat, Inc Device [1af4:0001] Physical Slot: 3 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 10 Region 0: I/O ports at c120 [size=32] Region 1: Memory at febf1000 (32-bit, non-prefetchable) [size=4K] Expansion ROM at febe [disabled] [size=64K] Capabilities: [40] MSI-X: Enable+ Count=3 Masked- Vector table: BAR=1 offset= PBA: BAR=1 offset=0800 Kernel driver in use: virtio-pci 00:04.0 SCSI storage controller
Re: [Kernel-packages] [Bug 1247647] Re: Kernel oops during btrfs access
Strange, i get the same problem with both kernels. Nov 5 08:12:31 ubuntunas kernel: [ 18.506379] [ cut here ] Nov 5 08:12:31 ubuntunas kernel: [ 18.507390] Kernel BUG at a014f0d2 [verbose debug info unavailable] Nov 5 08:12:31 ubuntunas kernel: [ 18.508754] invalid opcode: [#1] SMP Nov 5 08:12:31 ubuntunas kernel: [ 18.509711] Modules linked in: dm_crypt kvm_intel kvm microcode psmouse serio_raw virtio_balloon i2c_piix4 mac_hid lp parport btrfs xor zlib_deflate raid6_pq libcrc32c cirrus syscopyarea sysfillrect sysimgblt ttm drm_kms_helper drm floppy Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] CPU: 0 PID: 611 Comm: btrfs-balance Not tainted 3.11.0-031100-generic #201309021735 Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] task: 8800360d1770 ti: 8800b5a68000 task.ti: 8800b5a68000 Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] RIP: 0010:[a014f0d2] [a014f0d2] build_backref_tree+0x282/0x1250 [btrfs] Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] RSP: 0018:8800b5a69ab8 EFLAGS: 00010246 Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] RAX: RBX: 8800b7bf8240 RCX: 8800b4c4f590 Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] RDX: 8800b5a69b58 RSI: 8800b4c4f580 RDI: 88004d7a8280 Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] RBP: 8800b5a69bb8 R08: 88004d7a8b80 R09: 88004d7a8b80 Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] R10: 0001 R11: R12: 8800b4c4f590 Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] R13: 88004d7a8580 R14: R15: 8800b3dfe800 Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] FS: () GS:8800bb20() knlGS: Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] CS: 0010 DS: ES: CR0: 8005003b Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] CR2: 7fef3c9972f0 CR3: b4d93000 CR4: 06f0 Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] Stack: Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] 88004d7a8b80 8800b4c4f060 8800b3dfe920 Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] 88003607a000 88004d7a8380 88004d7a83c0 8800b7bf8240 Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] 88004d7a8380 8800b7bf8120 8800b3dfe924 8800b3dfe820 Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] Call Trace: Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] [a01501db] relocate_tree_blocks+0x13b/0x1e0 [btrfs] Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] [a0150d23] relocate_block_group+0x193/0x570 [btrfs] Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] [a01512b7] btrfs_relocate_block_group+0x1b7/0x2f0 [btrfs] Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] [a01293b6] btrfs_relocate_chunk.isra.62+0x56/0x3e0 [btrfs] Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] [a00e4d80] ? block_group_cache_tree_search+0xb0/0xf0 [btrfs] Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] [a011ddb9] ? release_extent_buffer+0x39/0x60 [btrfs] Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] [8172c69e] ? _raw_spin_lock+0xe/0x20 Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] [a011de12] ? free_extent_buffer.part.40+0x32/0x90 [btrfs] Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] [a012cda2] __btrfs_balance+0x312/0x3f0 [btrfs] Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] [a012d1ba] btrfs_balance+0x33a/0x5d0 [btrfs] Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] [a012d4d4] balance_kthread+0x84/0x90 [btrfs] Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] [a012d450] ? btrfs_balance+0x5d0/0x5d0 [btrfs] Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] [81088fe0] kthread+0xc0/0xd0 Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] [81088f20] ? flush_kthread_worker+0xb0/0xb0 Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] [81735a2c] ret_from_fork+0x7c/0xb0 Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] [81088f20] ? flush_kthread_worker+0xb0/0xb0 Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] Code: 0f 85 9b 0f 00 00 49 8d 44 24 40 48 89 85 30 ff ff ff 49 8b 44 24 40 48 39 85 30 ff ff ff 74 20 49 3b 44 24 48 0f 84 6a 09 00 00 0f 0b 48 8b 9d 38 ff ff ff 49 c7 c4 f4 ff ff ff e9 ec fd ff ff Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] RIP [a014f0d2] build_backref_tree+0x282/0x1250 [btrfs] Nov 5 08:12:31 ubuntunas kernel: [ 18.510211] RSP 8800b5a69ab8 Nov 5 08:12:31 ubuntunas kernel: [ 18.567218] ---[ end trace 51fc6470fa94310c ]--- Nov 5 08:13:41 ubuntunas kernel: [ 13.895581] [ cut here ] Nov 5 08:13:41 ubuntunas kernel: [ 13.896407] Kernel BUG at a0150512
