[Bug 1776325] Re: Error messages during boot - Ubuntu 18.04 & Mint19
Hi, long story short - I've wasted your time. I installed upstream kernel, also then reviewed logs I attached from my bug report. I think cpus are being managed just fine in 4.15.0-22-generic and 4.17. There were ACPI errors - but googling indicates these are likely triggered by programming errors in the mobo efi os. I didn't capture logs from the first times the system hung, but muddied waters trying different things for some time and lost them in the reformatting. I now think its possible/likely that in upgrading from an earlier cpu, using a boot drive set up for bios under uefi caused, amidst other instabilities, the logging I saw of rejections of some cpus. But I have no evidence and the systems are working normally now. In fact, bloody well, great. Glass half full, after 5 days of intense activity ,I can now follow the bug report process. Thanks for your patience, Bob. ** Description changed: This came about as I had problems with efi while installing a dual boot of ubuntu and linux mint. As I understand it, during the boot process, the kernel sees a cpu count for the processor chip , AMD Ryzen 2400G, as 8 but 4 of them are graphics compute units. A little later in the process, the graphics processors cause errors. Subsequent to discovering this , I have added a line to grub GRUB_CMDLINE_LINUX_ which appears to have improved the boot process. It is 'ruc_nocbs=0-3'. The alteration in grub seems to help limit the cpu count and gets the boot process over the bump. I searched the interweb for clues and this seems to be a successful experiment. I am reporting this because I could not find any pertinent reference to this sort of problem with this particular chip. This search was not exhaustive so I hope I am not wasting your time :) I am attaching a file of concatenated system info for kernel reports as the options on this page only appear to allow one file to be selected (https://bugs.launchpad.net/ubuntu/+source/linux/+filebug/4aca6a90-6dc0-11e8 -b34a-002481e7f48a. - Most of this was my lack of understanding the efi requirements, but the + Most of this was my lack of understanding the efi requirements, but the lack of useful information in the Gigabyte motherboard manual about how the UEFI operation was managed by its operating system prolonged my agony.:) I hope this helps, thank you and keep up the fantastic work Bob. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-22-generic 4.15.0-22.24 ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17 Uname: Linux 4.15.0-22-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 AudioDevicesInUse: - USERPID ACCESS COMMAND - /dev/snd/controlC1: tpf1528 F pulseaudio - /dev/snd/controlC0: tpf1528 F pulseaudio + USERPID ACCESS COMMAND + /dev/snd/controlC1: tpf1528 F pulseaudio + /dev/snd/controlC0: tpf1528 F pulseaudio CurrentDesktop: ubuntu:GNOME Date: Tue Jun 12 09:38:39 2018 HibernationDevice: RESUME=UUID=150c1cd8-2246-4c18-b40e-dc07d8425777 InstallationDate: Installed on 2018-06-10 (1 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: Gigabyte Technology Co., Ltd. AB350N-Gaming WIFI ProcEnviron: - TERM=xterm-256color - PATH=(custom, no user) - XDG_RUNTIME_DIR= - LANG=en_NZ.UTF-8 - SHELL=/bin/bash + TERM=xterm-256color + PATH=(custom, no user) + XDG_RUNTIME_DIR= + LANG=en_NZ.UTF-8 + SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-22-generic root=UUID=36d43481-0720-4808-a234-82941b71f750 ro quiet splash RelatedPackageVersions: - linux-restricted-modules-4.15.0-22-generic N/A - linux-backports-modules-4.15.0-22-generic N/A - linux-firmware 1.173.1 + linux-restricted-modules-4.15.0-22-generic N/A + linux-backports-modules-4.15.0-22-generic N/A + linux-firmware 1.173.1 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/17/2018 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F23d dmi.board.asset.tag: Default string dmi.board.name: AB350N-Gaming WIFI-CF dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF23d:bd04/17/2018:svnGigabyteTechnologyCo.,Ltd.:pnAB350N-GamingWIFI:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnAB350N-GamingWIFI-CF:rvrx.x:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.family: Default string dmi.product.name: AB350N-Gaming WIFI dmi.product.version: Default string dmi.sys.vendor: Gigabyte Technology Co., Ltd. -- You received this bug notification because you are
[Bug 1776325] Re: Error messages during boot - Ubuntu 18.04 & Mint19
This started after buying and installing new cpu, AMD Ryzen 2400g, on new motherboard. So no previous history available. Now reading Kernel Mainline Builds, will have a bash... keep you posted -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1776325 Title: Error messages during boot - Ubuntu 18.04 & Mint19 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1776325/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1776325] [NEW] Error messages during boot - Ubuntu 18.04 & Mint19
Public bug reported: This came about as I had problems with efi while installing a dual boot of ubuntu and linux mint. As I understand it, during the boot process, the kernel sees a cpu count for the processor chip , AMD Ryzen 2400G, as 8 but 4 of them are graphics compute units. A little later in the process, the graphics processors cause errors. Subsequent to discovering this , I have added a line to grub GRUB_CMDLINE_LINUX_ which appears to have improved the boot process. It is 'ruc_nocbs=0-3'. The alteration in grub seems to help limit the cpu count and gets the boot process over the bump. I searched the interweb for clues and this seems to be a successful experiment. I am reporting this because I could not find any pertinent reference to this sort of problem with this particular chip. This search was not exhaustive so I hope I am not wasting your time :) I am attaching a file of concatenated system info for kernel reports as the options on this page only appear to allow one file to be selected (https://bugs.launchpad.net/ubuntu/+source/linux/+filebug/4aca6a90-6dc0-11e8 -b34a-002481e7f48a. Most of this was my lack of understanding the efi requirements, but the lack of useful information in the Gigabyte motherboard manual about how the UEFI operation was managed by its operating system prolonged my agony.:) I hope this helps, thank you and keep up the fantastic work Bob. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-22-generic 4.15.0-22.24 ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17 Uname: Linux 4.15.0-22-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: tpf1528 F pulseaudio /dev/snd/controlC0: tpf1528 F pulseaudio CurrentDesktop: ubuntu:GNOME Date: Tue Jun 12 09:38:39 2018 HibernationDevice: RESUME=UUID=150c1cd8-2246-4c18-b40e-dc07d8425777 InstallationDate: Installed on 2018-06-10 (1 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: Gigabyte Technology Co., Ltd. AB350N-Gaming WIFI ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_NZ.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-22-generic root=UUID=36d43481-0720-4808-a234-82941b71f750 ro quiet splash RelatedPackageVersions: linux-restricted-modules-4.15.0-22-generic N/A linux-backports-modules-4.15.0-22-generic N/A linux-firmware 1.173.1 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/17/2018 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F23d dmi.board.asset.tag: Default string dmi.board.name: AB350N-Gaming WIFI-CF dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF23d:bd04/17/2018:svnGigabyteTechnologyCo.,Ltd.:pnAB350N-GamingWIFI:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnAB350N-GamingWIFI-CF:rvrx.x:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.family: Default string dmi.product.name: AB350N-Gaming WIFI dmi.product.version: Default string dmi.sys.vendor: Gigabyte Technology Co., Ltd. ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic ** Attachment added: "Various requested files for bugreport" https://bugs.launchpad.net/bugs/1776325/+attachment/5151468/+files/bobconcatlogs -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1776325 Title: Error messages during boot - Ubuntu 18.04 & Mint19 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1776325/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1753510] Re: Cannot boot/install AMD Ryzen 2400G
HI, I have Gigabyte ab350n wifi m/b and 2400g cpu. Dual booting has been an issue but I found that the booting process identified 8 compute units but it appeared the kernel wasn't accepting the count so 'rcu_nocbs=03" placed on kernel load line in grub improved later part of initiation. ( The 0-7 parameter dids not work for me) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1753510 Title: Cannot boot/install AMD Ryzen 2400G To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1753510/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1753510] Re: Cannot boot/install AMD Ryzen 2400G
Entry should be 'rcu_nocbs=0-3'. Typo, cheers bob -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1753510 Title: Cannot boot/install AMD Ryzen 2400G To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1753510/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 997568] [NEW] Hi8 vidcam audio input - no sound [System Product Name, VIA VT1708S, Blue Line In, Rear] No sound at all
Public bug reported: I am not familiar with setting video capture ( off old vidcam and bt878a card) up. Troubleshooting advice at https://wiki.ubuntu.com/Audio/ advised using ubuntu-bug audio - which triggered bug report almost immediately. I will keep troubleshooting and resubmit if I think a bug exists. cheers bob ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: alsa-base 1.0.25+dfsg-0ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-24.37-generic-pae 3.2.14 Uname: Linux 3.2.0-24-generic-pae i686 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu7 Architecture: i386 ArecordDevices: List of CAPTURE Hardware Devices card 0: SB [HDA ATI SB], device 0: VT1708S Analog [VT1708S Analog] Subdevices: 2/2 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: tpf2156 F pulseaudio /dev/snd/controlC0: tpf2156 F pulseaudio Card0.Amixer.info: Card hw:0 'SB'/'HDA ATI SB at 0xfe7f4000 irq 16' Mixer name : 'VIA VT1708S' Components : 'HDA:11060397,1043836c,0010' Controls : 44 Simple ctrls : 21 Card1.Amixer.info: Card hw:1 'HDMI'/'HDA ATI HDMI at 0xfe9e8000 irq 19' Mixer name : 'ATI RS690/780 HDMI' Components : 'HDA:1002791a,00791a00,0010' Controls : 4 Simple ctrls : 1 Card1.Amixer.values: Simple mixer control 'IEC958',0 Capabilities: pswitch pswitch-joined penum Playback channels: Mono Mono: Playback [on] CheckboxSubmission: 8fa4bff64dd28409110996163e6e8601 CheckboxSystem: edda5d4f616ca792bf437989cb597002 Date: Thu May 10 22:20:57 2012 PackageArchitecture: all ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_NZ.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Symptom_AlsaRecordingTest: ALSA recording test through plughw:SB failed Symptom_Card: Built-in Audio - HDA ATI SB Symptom_DevicesInUse: 2156 2156 tpf F pulseaudio /dev/snd/controlC0: tpf F pulseaudio Symptom_Jack: Blue Line In, Rear Symptom_Type: No sound at all Title: [System Product Name, VIA VT1708S, Blue Line In, Rear] No sound at all UpgradeStatus: Upgraded to precise on 2012-05-01 (8 days ago) dmi.bios.date: 12/22/2009 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0512 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: M4A785TD-V EVO dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0512:bd12/22/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A785TD-VEVO:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer ** Affects: alsa-driver (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug i386 precise -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/997568 Title: Hi8 vidcam audio input - no sound [System Product Name, VIA VT1708S, Blue Line In, Rear] No sound at all To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/997568/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 997568] Re: Hi8 vidcam audio input - no sound [System Product Name, VIA VT1708S, Blue Line In, Rear] No sound at all
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/997568 Title: Hi8 vidcam audio input - no sound [System Product Name, VIA VT1708S, Blue Line In, Rear] No sound at all To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/997568/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 733453] Re: plymouthd crashed with SIGSEGV in script_obj_deref_direct()
Have reported this previously. Occurred during update via synaptic - first task on startup -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/733453 Title: plymouthd crashed with SIGSEGV in script_obj_deref_direct() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/plymouth/+bug/733453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 564815] Re: plymouthd crashed with SIGSEGV
Appears to be same or similar bug. I was using Synaptic to update when crash report window reported 'The application Aptdaemon Software Management Service has closed unexpectedly Bug logging initiated and Synaptic continued reloading package data until apparently completed. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/564815 Title: plymouthd crashed with SIGSEGV To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/plymouth/+bug/564815/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 804662] Re: jockey-gtk crashed with TypeError in _execute_child(): execv() arg 2 must contain only strings
Jockey crashed immediately after starting to install post-release driver for ATI on boards graphics -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/804662 Title: jockey-gtk crashed with TypeError in _execute_child(): execv() arg 2 must contain only strings To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/jockey/+bug/804662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 936667] Re: Upstart early job logging causes boot failure for systems with no initramfs (error is No available ptys)
This bug or similar affects me. Installed from ubuntu-12.04-beta1 -desktop-amd64.iso downloaded 3/3/2012. Adding --no-log to grub : startup logs on screen to about point that init: no available ptys message looped and then hangs ( I presume the no log is effective, but not producing progress in startup.) The /boot/grub/ directory has only a blacklist file, otherwise empty. Is this because it has not yet been set up for initrm? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/936667 Title: Upstart early job logging causes boot failure for systems with no initramfs (error is No available ptys) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/upstart/+bug/936667/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 743359] Re: Installer: LockFailedException: Failed to lock /target/var/cache/apt/archives/lock
9:09 29/9/2011 Same for myself with 11.10 Beta 2. Downloaded about an hour ago. From the Live CD live instance, selected install, selected download updates while installing. Installer Crashed while removing packages + LockFailedException: Failed to lock /target/var/cache/apt/archives/lock -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/743359 Title: Installer: LockFailedException: Failed to lock /target/var/cache/apt/archives/lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubiquity/+bug/743359/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 560355] [NEW] alternative answers
Public bug reported: Binary package hint: gbrainy The question re number series 5 18 57 174 525 ? gave the answer 1578 ( result of 3(x+1) being the next value to right.) However the difference between given adjacent pairs ( right -left) is a sequence 13,39,117,351. They can be related as 13 x 3 raised to sequential powers 0,1,2,3 ie 13*3^1 and so on Suggested solution: as the two solution sets separate, add another term to the provided data and solve for the next ( and use both in separate questions... cheers bob ProblemType: Bug DistroRelease: Ubuntu 10.04 Package: gbrainy 1.40-1ubuntu2 ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1 Uname: Linux 2.6.32-19-generic x86_64 NonfreeKernelModules: fglrx Architecture: amd64 Date: Sat Apr 10 20:50:39 2010 InstallationMedia: Ubuntu 10.04 Lucid Lynx - Beta amd64 (20100406.1) PackageArchitecture: all ProcEnviron: LANG=en_NZ.UTF-8 SHELL=/bin/bash SourcePackage: gbrainy ** Affects: gbrainy (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug lucid -- alternative answers https://bugs.launchpad.net/bugs/560355 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 560355] Re: alternative answers
** Attachment added: Dependencies.txt http://launchpadlibrarian.net/43654157/Dependencies.txt -- alternative answers https://bugs.launchpad.net/bugs/560355 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 560355] Re: alternative answers
I should add for completeness: Alternative answer is 1053 ( 13*3^4) two typos corrected cheers The question re number series 5 18 57 174 525 ? gave the answer 1578 ( result of 3(x+1) being the next value to right.) However the difference between given adjacent pairs ( right - left) is a sequence 13,39,117,351. They can be related as 13 x 3 raised to sequential powers 0,1,2,3 eg 13*3^1 and so on Suggested solution: as the two solution sets separate, add another term to the provided data and solve for the next ( and use both in separate questions... cheers bob ProblemType: Bug DistroRelease: Ubuntu 10.04 Package: gbrainy 1.40-1ubuntu2 ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1 Uname: Linux 2.6.32-19-generic x86_64 NonfreeKernelModules: fglrx Architecture: amd64 Date: Sat Apr 10 20:50:39 2010 InstallationMedia: Ubuntu 10.04 Lucid Lynx - Beta amd64 (20100406.1) PackageArchitecture: all ProcEnviron: LANG=en_NZ.UTF-8 SHELL=/bin/bash SourcePackage: gbrainy -- alternative answers https://bugs.launchpad.net/bugs/560355 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
