[Kernel-packages] [Bug 1845454] Re: Kernel panic with 19.10 beta image

2019-10-04 Thread Mauricio Faria de Oliveira
Bug 1846542 has equivalent stack traces on 5.3.0-13. Suggested this test
kernel there.

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Title:
  Kernel panic with 19.10 beta image

Status in linux package in Ubuntu:
  In Progress

Bug description:
  SRU Justification

  Impact: Some systems are getting kernel panics during boot while
  parsing tpm event logs from the firmware. This happens only when the
  tpm and secure boot are both enabled in the firmware.

  Fix: 3 patches which are currently applied to the upstream EFI
  maintainer tree.

  Test Case: On an affected system, booting a 5.3-based kernel will
  panic during boot when the tpm and secure boot are enabled. A patched
  kernel will boot successfully. The patches have been verified to fix
  the issue on a gen 6 Lenovo X1 Carbon.

  Regression Potential: If the patches have bugs they could cause
  regressions on systems not currently experiencing issues. The patches
  are pretty straightforward though, so I believe the risk is minimal
  and (given the severity of the issue on affected hardware) acceptable.

  ---

  Image: http://cdimage.ubuntu.com/daily-live/20190926/eoan-desktop-amd64.iso
  Device: Dell XPS 13 7390 (201908-27305)

  When trying to start the live session ("try Ubuntu") or trying to
  install the ISO ("install Ubuntu"), the boot process stops within 1
  second with a kernel panic (see attached screenshot).

  The system could boot with a previous version of Eoan image:
  2019-09-09 09:11 (kernel 5.3.0-10)

  Workaround: disable TPM2 in the BIOS.

  /!\ Please note: the information below (and the attached file  
ProcCpuinfoMinimal.txt) come from a 18.04 live session, since I cannot boot 
anything with 19.10 beta image.
  ==
  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: syslinux 3:6.03+dfsg1-2
  ProcVersionSignature: Ubuntu 5.0.0-23.24~18.04.1-generic 5.0.15
  Uname: Linux 5.0.0-23-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.7
  Architecture: amd64
  CasperVersion: 1.394
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Sep 26 07:41:16 2019
  Dependencies:
   gcc-8-base 8.3.0-6ubuntu1~18.04.1
   libc6 2.27-3ubuntu1
   libgcc1 1:8.3.0-6ubuntu1~18.04.1
   mtools 4.0.18-2ubuntu1
   syslinux-common 3:6.03+dfsg1-2
  LiveMediaBuild: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=
   LANG=C.UTF-8
   SHELL=/bin/bash
  SourcePackage: syslinux
  UpgradeStatus: No upgrade log present (probably fresh install)

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1845454] Re: Kernel panic with 19.10 beta image

2019-09-28 Thread Seth Forshee
https://lists.ubuntu.com/archives/kernel-team/2019-September/104101.html

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https://bugs.launchpad.net/bugs/1845454

Title:
  Kernel panic with 19.10 beta image

Status in linux package in Ubuntu:
  In Progress

Bug description:
  SRU Justification

  Impact: Some systems are getting kernel panics during boot while
  parsing tpm event logs from the firmware. This happens only when the
  tpm and secure boot are both enabled in the firmware.

  Fix: 3 patches which are currently applied to the upstream EFI
  maintainer tree.

  Test Case: On an affected system, booting a 5.3-based kernel will
  panic during boot when the tpm and secure boot are enabled. A patched
  kernel will boot successfully. The patches have been verified to fix
  the issue on a gen 6 Lenovo X1 Carbon.

  Regression Potential: If the patches have bugs they could cause
  regressions on systems not currently experiencing issues. The patches
  are pretty straightforward though, so I believe the risk is minimal
  and (given the severity of the issue on affected hardware) acceptable.

  ---

  Image: http://cdimage.ubuntu.com/daily-live/20190926/eoan-desktop-amd64.iso
  Device: Dell XPS 13 7390 (201908-27305)

  When trying to start the live session ("try Ubuntu") or trying to
  install the ISO ("install Ubuntu"), the boot process stops within 1
  second with a kernel panic (see attached screenshot).

  The system could boot with a previous version of Eoan image:
  2019-09-09 09:11 (kernel 5.3.0-10)

  Workaround: disable TPM2 in the BIOS.

  /!\ Please note: the information below (and the attached file  
ProcCpuinfoMinimal.txt) come from a 18.04 live session, since I cannot boot 
anything with 19.10 beta image.
  ==
  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: syslinux 3:6.03+dfsg1-2
  ProcVersionSignature: Ubuntu 5.0.0-23.24~18.04.1-generic 5.0.15
  Uname: Linux 5.0.0-23-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.7
  Architecture: amd64
  CasperVersion: 1.394
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Sep 26 07:41:16 2019
  Dependencies:
   gcc-8-base 8.3.0-6ubuntu1~18.04.1
   libc6 2.27-3ubuntu1
   libgcc1 1:8.3.0-6ubuntu1~18.04.1
   mtools 4.0.18-2ubuntu1
   syslinux-common 3:6.03+dfsg1-2
  LiveMediaBuild: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=
   LANG=C.UTF-8
   SHELL=/bin/bash
  SourcePackage: syslinux
  UpgradeStatus: No upgrade log present (probably fresh install)

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1845454] Re: Kernel panic with 19.10 beta image

2019-09-28 Thread Seth Forshee
** Description changed:

+ SRU Justification
+ 
+ Impact: Some systems are getting kernel panics during boot while parsing
+ tpm event logs from the firmware. This happens only when the tpm and
+ secure boot are both enabled in the firmware.
+ 
+ Fix: 3 patches which are currently applied to the upstream EFI
+ maintainer tree.
+ 
+ Test Case: On an affected system, booting a 5.3-based kernel will panic
+ during boot when the tpm and secure boot are enabled. A patched kernel
+ will boot successfully. The patches have been verified to fix the issue
+ on a gen 6 Lenovo X1 Carbon.
+ 
+ Regression Potential: If the patches have bugs they could cause
+ regressions on systems not currently experiencing issues. The patches
+ are pretty straightforward though, so I believe the risk is minimal and
+ (given the severity of the issue on affected hardware) acceptable.
+ 
+ ---
+ 
  Image: http://cdimage.ubuntu.com/daily-live/20190926/eoan-desktop-amd64.iso
  Device: Dell XPS 13 7390 (201908-27305)
  
  When trying to start the live session ("try Ubuntu") or trying to
  install the ISO ("install Ubuntu"), the boot process stops within 1
  second with a kernel panic (see attached screenshot).
  
  The system could boot with a previous version of Eoan image: 2019-09-09
  09:11 (kernel 5.3.0-10)
  
  Workaround: disable TPM2 in the BIOS.
  
  /!\ Please note: the information below (and the attached file  
ProcCpuinfoMinimal.txt) come from a 18.04 live session, since I cannot boot 
anything with 19.10 beta image.
  ==
  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: syslinux 3:6.03+dfsg1-2
  ProcVersionSignature: Ubuntu 5.0.0-23.24~18.04.1-generic 5.0.15
  Uname: Linux 5.0.0-23-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.7
  Architecture: amd64
  CasperVersion: 1.394
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Sep 26 07:41:16 2019
  Dependencies:
   gcc-8-base 8.3.0-6ubuntu1~18.04.1
   libc6 2.27-3ubuntu1
   libgcc1 1:8.3.0-6ubuntu1~18.04.1
   mtools 4.0.18-2ubuntu1
   syslinux-common 3:6.03+dfsg1-2
  LiveMediaBuild: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=
   LANG=C.UTF-8
   SHELL=/bin/bash
  SourcePackage: syslinux
  UpgradeStatus: No upgrade log present (probably fresh install)

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1845454

Title:
  Kernel panic with 19.10 beta image

Status in linux package in Ubuntu:
  In Progress

Bug description:
  SRU Justification

  Impact: Some systems are getting kernel panics during boot while
  parsing tpm event logs from the firmware. This happens only when the
  tpm and secure boot are both enabled in the firmware.

  Fix: 3 patches which are currently applied to the upstream EFI
  maintainer tree.

  Test Case: On an affected system, booting a 5.3-based kernel will
  panic during boot when the tpm and secure boot are enabled. A patched
  kernel will boot successfully. The patches have been verified to fix
  the issue on a gen 6 Lenovo X1 Carbon.

  Regression Potential: If the patches have bugs they could cause
  regressions on systems not currently experiencing issues. The patches
  are pretty straightforward though, so I believe the risk is minimal
  and (given the severity of the issue on affected hardware) acceptable.

  ---

  Image: http://cdimage.ubuntu.com/daily-live/20190926/eoan-desktop-amd64.iso
  Device: Dell XPS 13 7390 (201908-27305)

  When trying to start the live session ("try Ubuntu") or trying to
  install the ISO ("install Ubuntu"), the boot process stops within 1
  second with a kernel panic (see attached screenshot).

  The system could boot with a previous version of Eoan image:
  2019-09-09 09:11 (kernel 5.3.0-10)

  Workaround: disable TPM2 in the BIOS.

  /!\ Please note: the information below (and the attached file  
ProcCpuinfoMinimal.txt) come from a 18.04 live session, since I cannot boot 
anything with 19.10 beta image.
  ==
  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: syslinux 3:6.03+dfsg1-2
  ProcVersionSignature: Ubuntu 5.0.0-23.24~18.04.1-generic 5.0.15
  Uname: Linux 5.0.0-23-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.7
  Architecture: amd64
  CasperVersion: 1.394
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Sep 26 07:41:16 2019
  Dependencies:
   gcc-8-base 8.3.0-6ubuntu1~18.04.1
   libc6 2.27-3ubuntu1
   libgcc1 1:8.3.0-6ubuntu1~18.04.1
   mtools 4.0.18-2ubuntu1
   syslinux-common 3:6.03+dfsg1-2
  LiveMediaBuild: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=
   LANG=C.UTF-8
   SHELL=/bin/bash
  SourcePackage: syslinux
  UpgradeStatus: No upgrade log present (probably fresh install)

To manage notifications about this 

[Kernel-packages] [Bug 1845454] Re: Kernel panic with 19.10 beta image

2019-09-28 Thread Seth Forshee
I got some positive testing on the test build off-bug, will submit these
patches for eoan.

** Changed in: linux (Ubuntu)
   Status: Incomplete => In Progress

** Changed in: linux (Ubuntu)
 Assignee: (unassigned) => Seth Forshee (sforshee)

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1845454

Title:
  Kernel panic with 19.10 beta image

Status in linux package in Ubuntu:
  In Progress

Bug description:
  Image: http://cdimage.ubuntu.com/daily-live/20190926/eoan-desktop-amd64.iso
  Device: Dell XPS 13 7390 (201908-27305)

  When trying to start the live session ("try Ubuntu") or trying to
  install the ISO ("install Ubuntu"), the boot process stops within 1
  second with a kernel panic (see attached screenshot).

  The system could boot with a previous version of Eoan image:
  2019-09-09 09:11 (kernel 5.3.0-10)

  Workaround: disable TPM2 in the BIOS.

  /!\ Please note: the information below (and the attached file  
ProcCpuinfoMinimal.txt) come from a 18.04 live session, since I cannot boot 
anything with 19.10 beta image.
  ==
  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: syslinux 3:6.03+dfsg1-2
  ProcVersionSignature: Ubuntu 5.0.0-23.24~18.04.1-generic 5.0.15
  Uname: Linux 5.0.0-23-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.7
  Architecture: amd64
  CasperVersion: 1.394
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Sep 26 07:41:16 2019
  Dependencies:
   gcc-8-base 8.3.0-6ubuntu1~18.04.1
   libc6 2.27-3ubuntu1
   libgcc1 1:8.3.0-6ubuntu1~18.04.1
   mtools 4.0.18-2ubuntu1
   syslinux-common 3:6.03+dfsg1-2
  LiveMediaBuild: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=
   LANG=C.UTF-8
   SHELL=/bin/bash
  SourcePackage: syslinux
  UpgradeStatus: No upgrade log present (probably fresh install)

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1845454] Re: Kernel panic with 19.10 beta image

2019-09-26 Thread Seth Forshee
Provided this in irc, but posting here also. Instructions for installing
a MOK that you can use to sign kernels are found here:

https://ubuntu.com/blog/how-to-sign-things-for-secure-boot

Note the comment under "Enrolling the key" about omitting OID
1.3.6.1.4.1.2312.16.1.2 if you want to use the key to sign kernels.

-- 
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Title:
  Kernel panic with 19.10 beta image

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Image: http://cdimage.ubuntu.com/daily-live/20190926/eoan-desktop-amd64.iso
  Device: Dell XPS 13 7390 (201908-27305)

  When trying to start the live session ("try Ubuntu") or trying to
  install the ISO ("install Ubuntu"), the boot process stops within 1
  second with a kernel panic (see attached screenshot).

  The system could boot with a previous version of Eoan image:
  2019-09-09 09:11 (kernel 5.3.0-10)

  Workaround: disable TPM2 in the BIOS.

  /!\ Please note: the information below (and the attached file  
ProcCpuinfoMinimal.txt) come from a 18.04 live session, since I cannot boot 
anything with 19.10 beta image.
  ==
  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: syslinux 3:6.03+dfsg1-2
  ProcVersionSignature: Ubuntu 5.0.0-23.24~18.04.1-generic 5.0.15
  Uname: Linux 5.0.0-23-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.7
  Architecture: amd64
  CasperVersion: 1.394
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Sep 26 07:41:16 2019
  Dependencies:
   gcc-8-base 8.3.0-6ubuntu1~18.04.1
   libc6 2.27-3ubuntu1
   libgcc1 1:8.3.0-6ubuntu1~18.04.1
   mtools 4.0.18-2ubuntu1
   syslinux-common 3:6.03+dfsg1-2
  LiveMediaBuild: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=
   LANG=C.UTF-8
   SHELL=/bin/bash
  SourcePackage: syslinux
  UpgradeStatus: No upgrade log present (probably fresh install)

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1845454] Re: Kernel panic with 19.10 beta image

2019-09-26 Thread Michael Hudson-Doyle
This is the same bug as bug 1844101 I think? If it is, it doesn't
reproduce with secure boot off and we'll need a signed kernel to test.
I'm happy to enrol whatever key in my firmware to test a self-signed
kernel...

-- 
You received this bug notification because you are a member of Kernel
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Title:
  Kernel panic with 19.10 beta image

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Image: http://cdimage.ubuntu.com/daily-live/20190926/eoan-desktop-amd64.iso
  Device: Dell XPS 13 7390 (201908-27305)

  When trying to start the live session ("try Ubuntu") or trying to
  install the ISO ("install Ubuntu"), the boot process stops within 1
  second with a kernel panic (see attached screenshot).

  The system could boot with a previous version of Eoan image:
  2019-09-09 09:11 (kernel 5.3.0-10)

  Workaround: disable TPM2 in the BIOS.

  /!\ Please note: the information below (and the attached file  
ProcCpuinfoMinimal.txt) come from a 18.04 live session, since I cannot boot 
anything with 19.10 beta image.
  ==
  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: syslinux 3:6.03+dfsg1-2
  ProcVersionSignature: Ubuntu 5.0.0-23.24~18.04.1-generic 5.0.15
  Uname: Linux 5.0.0-23-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.7
  Architecture: amd64
  CasperVersion: 1.394
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Sep 26 07:41:16 2019
  Dependencies:
   gcc-8-base 8.3.0-6ubuntu1~18.04.1
   libc6 2.27-3ubuntu1
   libgcc1 1:8.3.0-6ubuntu1~18.04.1
   mtools 4.0.18-2ubuntu1
   syslinux-common 3:6.03+dfsg1-2
  LiveMediaBuild: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=
   LANG=C.UTF-8
   SHELL=/bin/bash
  SourcePackage: syslinux
  UpgradeStatus: No upgrade log present (probably fresh install)

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1845454] Re: Kernel panic with 19.10 beta image

2019-09-26 Thread Seth Forshee
Test build is available at:

https://people.canonical.com/~sforshee/lp1845454/5.3.0-13.14+lp1845454v201909260743/

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1845454

Title:
  Kernel panic with 19.10 beta image

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Image: http://cdimage.ubuntu.com/daily-live/20190926/eoan-desktop-amd64.iso
  Device: Dell XPS 13 7390 (201908-27305)

  When trying to start the live session ("try Ubuntu") or trying to
  install the ISO ("install Ubuntu"), the boot process stops within 1
  second with a kernel panic (see attached screenshot).

  The system could boot with a previous version of Eoan image:
  2019-09-09 09:11 (kernel 5.3.0-10)

  Workaround: disable TPM2 in the BIOS.

  /!\ Please note: the information below (and the attached file  
ProcCpuinfoMinimal.txt) come from a 18.04 live session, since I cannot boot 
anything with 19.10 beta image.
  ==
  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: syslinux 3:6.03+dfsg1-2
  ProcVersionSignature: Ubuntu 5.0.0-23.24~18.04.1-generic 5.0.15
  Uname: Linux 5.0.0-23-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.7
  Architecture: amd64
  CasperVersion: 1.394
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Sep 26 07:41:16 2019
  Dependencies:
   gcc-8-base 8.3.0-6ubuntu1~18.04.1
   libc6 2.27-3ubuntu1
   libgcc1 1:8.3.0-6ubuntu1~18.04.1
   mtools 4.0.18-2ubuntu1
   syslinux-common 3:6.03+dfsg1-2
  LiveMediaBuild: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=
   LANG=C.UTF-8
   SHELL=/bin/bash
  SourcePackage: syslinux
  UpgradeStatus: No upgrade log present (probably fresh install)

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1845454] Re: Kernel panic with 19.10 beta image

2019-09-26 Thread Seth Forshee
I agree this looks the same as the bug reported against fedora. I've
started a test build with these commits. I know this was reported with
the ISO image, but hopefully we can work out a way to test. I suspect
disabling the tpm in the firmware settings will get the machine to
boot/install, and then it could be re-enabled to confirm that the panic
still happens with the kernel from -release and to check whether it is
gone in the test build.

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Title:
  Kernel panic with 19.10 beta image

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Image: http://cdimage.ubuntu.com/daily-live/20190926/eoan-desktop-amd64.iso
  Device: Dell XPS 13 7390 (201908-27305)

  When trying to start the live session ("try Ubuntu") or trying to
  install the ISO ("install Ubuntu"), the boot process stops within 1
  second with a kernel panic (see attached screenshot).

  The system could boot with a previous version of Eoan image:
  2019-09-09 09:11 (kernel 5.3.0-10)

  Workaround: disable TPM2 in the BIOS.

  /!\ Please note: the information below (and the attached file  
ProcCpuinfoMinimal.txt) come from a 18.04 live session, since I cannot boot 
anything with 19.10 beta image.
  ==
  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: syslinux 3:6.03+dfsg1-2
  ProcVersionSignature: Ubuntu 5.0.0-23.24~18.04.1-generic 5.0.15
  Uname: Linux 5.0.0-23-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.7
  Architecture: amd64
  CasperVersion: 1.394
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Sep 26 07:41:16 2019
  Dependencies:
   gcc-8-base 8.3.0-6ubuntu1~18.04.1
   libc6 2.27-3ubuntu1
   libgcc1 1:8.3.0-6ubuntu1~18.04.1
   mtools 4.0.18-2ubuntu1
   syslinux-common 3:6.03+dfsg1-2
  LiveMediaBuild: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=
   LANG=C.UTF-8
   SHELL=/bin/bash
  SourcePackage: syslinux
  UpgradeStatus: No upgrade log present (probably fresh install)

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1845454] Re: Kernel panic with 19.10 beta image

2019-09-26 Thread Jean-Baptiste Lallement
** Summary changed:

- Dell XPS 13 7390 - Kernel panic with 19.10 beta image
+ Kernel panic with 19.10 beta image

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https://bugs.launchpad.net/bugs/1845454

Title:
  Kernel panic with 19.10 beta image

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Image: http://cdimage.ubuntu.com/daily-live/20190926/eoan-desktop-amd64.iso
  Device: Dell XPS 13 7390 (201908-27305)

  When trying to start the live session ("try Ubuntu") or trying to
  install the ISO ("install Ubuntu"), the boot process stops within 1
  second with a kernel panic (see attached screenshot).

  The system could boot with a previous version of Eoan image:
  2019-09-09 09:11 (kernel 5.3.0-10)

  Workaround: disable TPM2 in the BIOS.

  /!\ Please note: the information below (and the attached file  
ProcCpuinfoMinimal.txt) come from a 18.04 live session, since I cannot boot 
anything with 19.10 beta image.
  ==
  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: syslinux 3:6.03+dfsg1-2
  ProcVersionSignature: Ubuntu 5.0.0-23.24~18.04.1-generic 5.0.15
  Uname: Linux 5.0.0-23-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.7
  Architecture: amd64
  CasperVersion: 1.394
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Sep 26 07:41:16 2019
  Dependencies:
   gcc-8-base 8.3.0-6ubuntu1~18.04.1
   libc6 2.27-3ubuntu1
   libgcc1 1:8.3.0-6ubuntu1~18.04.1
   mtools 4.0.18-2ubuntu1
   syslinux-common 3:6.03+dfsg1-2
  LiveMediaBuild: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=
   LANG=C.UTF-8
   SHELL=/bin/bash
  SourcePackage: syslinux
  UpgradeStatus: No upgrade log present (probably fresh install)

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