[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2020-01-28 Thread Thadeu Lima de Souza Cascardo
Hi, Mathew.

Please, add comments when removing packages affected by bugs, explaining
your reasoning, instead of just blindly removing them.

Using maxcpus is suboptimal, because it requires more memory than
nr_cpus. The fact that ppc64el doesn't work on kdump with nr_cpus is a
linux bug that needs to be fixed.

Cascardo.

** Also affects: linux (Ubuntu)
   Importance: Undecided
   Status: New

** Changed in: linux (Ubuntu)
   Status: New => Confirmed

** Changed in: linux (Ubuntu)
   Importance: Undecided => Low

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2020-01-27 Thread Mathew Hodson
** No longer affects: kexec-tools (Ubuntu)

** No longer affects: kexec-tools (Ubuntu Cosmic)

** No longer affects: kexec-tools (Ubuntu Disco)

** No longer affects: kexec-tools (Ubuntu Eoan)

** No longer affects: linux (Ubuntu)

** No longer affects: linux (Ubuntu Disco)

** No longer affects: linux (Ubuntu Eoan)

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-11-12 Thread bugproxy
** Tags removed: targetmilestone-inin---
** Tags added: targetmilestone-inin18043

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-11-11 Thread Andrew Cloke
** Changed in: ubuntu-power-systems
   Status: Fix Committed => Fix Released

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-11-11 Thread Launchpad Bug Tracker
This bug was fixed in the package makedumpfile - 1:1.6.5-1ubuntu1.3

---
makedumpfile (1:1.6.5-1ubuntu1.3) disco; urgency=medium

  [ Guilherme G. Piccoli ]
  * Add kdump retry/delay mechanism when dumping over network (LP: #1681909)

  [ Thadeu Lima de Souza Cascardo ]
  * Use maxcpus instead of nr_cpus on ppc64el. (LP: #1828597)
  * ppc64: increase MAX_PHYSMEM_BITS to 2PB (LP: #1841288)

  [ Connor Kuehl ]
  * Let the kernel decide the crashkernel offset for ppc64el (LP: #1741860)

 -- Thadeu Lima de Souza Cascardo   Wed, 09 Oct
2019 15:33:57 -0300

** Changed in: makedumpfile (Ubuntu Disco)
   Status: Fix Committed => Fix Released

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-11-11 Thread Launchpad Bug Tracker
This bug was fixed in the package makedumpfile -
1:1.6.5-1ubuntu1~18.04.3

---
makedumpfile (1:1.6.5-1ubuntu1~18.04.3) bionic; urgency=medium

  [ Guilherme G. Piccoli ]
  * Add kdump retry/delay mechanism when dumping over network (LP: #1681909)

  [ Thadeu Lima de Souza Cascardo ]
  * Use maxcpus instead of nr_cpus on ppc64el. (LP: #1828597)
  * ppc64: increase MAX_PHYSMEM_BITS to 2PB (LP: #1841288)

  [ Connor Kuehl ]
  * Let the kernel decide the crashkernel offset for ppc64el (LP: #1741860)

 -- Thadeu Lima de Souza Cascardo   Wed, 09 Oct
2019 15:38:08 -0300

** Changed in: makedumpfile (Ubuntu Bionic)
   Status: Fix Committed => Fix Released

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-10-25 Thread Frank Heimes
** Changed in: ubuntu-power-systems
   Status: In Progress => Fix Committed

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-10-25 Thread bugproxy
--- Comment From hbath...@in.ibm.com 2019-10-25 06:58 EDT---
On disco, with kdump-tools/makedumpfile package version 1:1.6.5-1ubuntu1.3
maxcpus=1 is used instead of nr_cpus=1 by default as expected.

On bionic, with kdump-tools/makedumpfile package version 
1:1.6.5-1ubuntu1~18.04.3
maxcpus=1 is used instead of nr_cpus=1 by default as expected.

** Tags removed: verification-needed verification-needed-disco
** Tags added: verification-done verification-done-disco

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-10-23 Thread Andy Whitcroft
Hello bugproxy, or anyone else affected,

Accepted makedumpfile into disco-proposed. The package will build now
and be available at
https://launchpad.net/ubuntu/+source/makedumpfile/1:1.6.5-1ubuntu1.3 in
a few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-disco to verification-done-disco. If it does not fix
the bug for you, please add a comment stating that, and change the tag
to verification-failed-disco. In either case, without details of your
testing we will not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: makedumpfile (Ubuntu Disco)
   Status: In Progress => Fix Committed

** Tags removed: verification-done verification-done-disco
** Tags added: verification-needed verification-needed-disco

** Changed in: makedumpfile (Ubuntu Bionic)
   Status: In Progress => Fix Committed

** Tags removed: verification-done-bionic
** Tags added: verification-needed-bionic

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-10-23 Thread bugproxy
** Tags removed: verification-needed-bionic
** Tags added: verification-done-bionic

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-10-10 Thread Thadeu Lima de Souza Cascardo
New version of makedumpfile/kdump-tools now without the fix that failed
verification. It contains the fix for this bug and 3 more.

This is available for disco and bionic at ppa:cascardo/ppa. Will get it
shortly to -proposed.

Cascardo.

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-09-30 Thread Andrew Cloke
Even though the bionic and disco verifications were successful (thanks
for verifying), these patches were bundled in a single submission with
other patches (from other bugs) which could not be successfully
verified. As a result, all patches have had to be removed.

Next step is to re-upload new version of makedumpfile.


** Changed in: makedumpfile (Ubuntu Bionic)
   Status: Fix Committed => In Progress

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-09-30 Thread Andrew Cloke
** Changed in: ubuntu-power-systems
   Status: Fix Committed => In Progress

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-09-30 Thread Frank Heimes
** Changed in: makedumpfile (Ubuntu Disco)
   Status: Fix Committed => In Progress

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-09-16 Thread Manoj Iyer
** Changed in: linux (Ubuntu Disco)
   Status: Confirmed => Invalid

** Changed in: linux (Ubuntu Eoan)
   Status: Confirmed => Invalid

** Changed in: ubuntu-power-systems
   Status: Confirmed => Fix Committed

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-08-30 Thread bugproxy
--- Comment From hbath...@in.ibm.com 2019-08-30 02:19 EDT---
Resolved with makedumpfile/kdump-tools version 1.6.5-1ubuntu1.1 on Disco

** Tags removed: verification-needed verification-needed-disco
** Tags added: verification-done verification-done-disco

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-08-29 Thread bugproxy
--- Comment From hbath...@in.ibm.com 2019-08-29 07:44 EDT---
With kdump-tools package version 1.6.5-1ubuntu1~18.04.2, the kdump kernel
is loaded with maxcpus=1 instead of nr_cpus=1

** Tags removed: verification-needed-bionic
** Tags added: verification-done-bionic

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-08-28 Thread Andy Whitcroft
Hello bugproxy, or anyone else affected,

Accepted makedumpfile into bionic-proposed. The package will build now
and be available at
https://launchpad.net/ubuntu/+source/makedumpfile/1:1.6.5-1ubuntu1~18.04.2
in a few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-bionic to verification-done-bionic. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-bionic. In either case, without details of
your testing we will not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: makedumpfile (Ubuntu Bionic)
   Status: New => Fix Committed

** Tags added: verification-needed-bionic

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-08-28 Thread Andy Whitcroft
Hello bugproxy, or anyone else affected,

Accepted makedumpfile into disco-proposed. The package will build now
and be available at
https://launchpad.net/ubuntu/+source/makedumpfile/1:1.6.5-1ubuntu1.1 in
a few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-disco to verification-done-disco. If it does not fix
the bug for you, please add a comment stating that, and change the tag
to verification-failed-disco. In either case, without details of your
testing we will not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: makedumpfile (Ubuntu Disco)
   Status: New => Fix Committed

** Tags added: verification-needed verification-needed-disco

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-07-24 Thread Brad Figg
** Tags added: cscc

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-07-22 Thread Manoj Iyer
** No longer affects: makedumpfile (Ubuntu Cosmic)

** No longer affects: linux (Ubuntu Cosmic)

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-07-20 Thread Thadeu Lima de Souza Cascardo
** Description changed:

  [Impact]
  The kdump kernel will crash during its boot if booted on a CPU other than 0.
  
  [Test case]
  Trigger a crash using taskset -c X, where X is not 0 and is a present CPU. 
Check that the dump is successful.
  
+ echo c | sudo taskset -c 1 tee /proc/sysrq-trigger
+ 
  [Regression potential]
  This will cause more memory to be used by the dump kernel, which may cause 
OOMs during the dump. The fix is restricted to ppc64el.
- 
  
  == Comment: #0 - Hari Krishna Bathini  - 2019-05-10 06:38:21 ==
  
  ---Problem Description---
  kdump boots fails in some environments when nr_cpus=1 is passed
  
  ---uname output---
  na
  
  Machine Type = na
  
  ---Debugger---
  A debugger is not configured
  
  ---Steps to Reproduce---
   1. configure kdump
  2. trigger crash on non-boot cpu
  
  Expected result:
  Capture dump and reboot
  
  Actual result:
  Hang in early kdump boot process after crash
  
  Userspace tool common name: kdump-tools
  
  The userspace tool has the following bit modes: 64-bit
  
  Userspace rpm: kdump-tools
  
  Userspace tool obtained from project website:  na
  
  == Comment: #1 - Hari Krishna Bathini - 2019-05-10 06:45:46 ==
  Launchpad bug 1560552 added "nr_cpus=1" support on ppc64 though
  this change never made it upstream as maintainer has a few apprehensions..
  
  With 4.18 kernels, this change is dropped on Ubuntu kernels too.
  With nr_cpus=1 support in kernel, kdump-tools was also updated to
  use "nr_cpsu=1" by default instead of "maxcpus=1" (see launchpad
  bug 1568952). This kdump-tools change has to be reverted to make
  it consist with the kernel change. Note that "nr_cpus=1 change had
  a issues in kdump guest environment even with "nr_cpus=1" support
  for kdump in kernel. So, even not withstanding the kernel revert, it is
  better to default to "maxcpus=1" on all kernel versions. So, please
  revert the kdump-tools fix that went in with launchpad bug 1568952

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-07-02 Thread Thadeu Lima de Souza Cascardo
** Description changed:

+ [Impact]
+ The kdump kernel will crash during its boot if booted on a CPU other than 0.
+ 
+ [Test case]
+ Trigger a crash using taskset -c X, where X is not 0 and is a present CPU. 
Check that the dump is successful.
+ 
+ [Regression potential]
+ This will cause more memory to be used by the dump kernel, which may cause 
OOMs during the dump. The fix is restricted to ppc64el.
+ 
+ 
  == Comment: #0 - Hari Krishna Bathini  - 2019-05-10 06:38:21 ==
  
  ---Problem Description---
- kdump boots fails in some environments when nr_cpus=1 is passed 
-  
+ kdump boots fails in some environments when nr_cpus=1 is passed
+ 
  ---uname output---
  na
-  
- Machine Type = na 
-  
+ 
+ Machine Type = na
+ 
  ---Debugger---
  A debugger is not configured
-  
+ 
  ---Steps to Reproduce---
-  1. configure kdump
+  1. configure kdump
  2. trigger crash on non-boot cpu
  
  Expected result:
  Capture dump and reboot
  
  Actual result:
  Hang in early kdump boot process after crash
-  
- Userspace tool common name: kdump-tools 
-  
- The userspace tool has the following bit modes: 64-bit 
+ 
+ Userspace tool common name: kdump-tools
+ 
+ The userspace tool has the following bit modes: 64-bit
  
  Userspace rpm: kdump-tools
  
  Userspace tool obtained from project website:  na
  
  == Comment: #1 - Hari Krishna Bathini - 2019-05-10 06:45:46 ==
  Launchpad bug 1560552 added "nr_cpus=1" support on ppc64 though
  this change never made it upstream as maintainer has a few apprehensions..
  
  With 4.18 kernels, this change is dropped on Ubuntu kernels too.
  With nr_cpus=1 support in kernel, kdump-tools was also updated to
  use "nr_cpsu=1" by default instead of "maxcpus=1" (see launchpad
  bug 1568952). This kdump-tools change has to be reverted to make
  it consist with the kernel change. Note that "nr_cpus=1 change had
  a issues in kdump guest environment even with "nr_cpus=1" support
  for kdump in kernel. So, even not withstanding the kernel revert, it is
  better to default to "maxcpus=1" on all kernel versions. So, please
  revert the kdump-tools fix that went in with launchpad bug 1568952

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-06-28 Thread Launchpad Bug Tracker
This bug was fixed in the package makedumpfile - 1:1.6.5-1ubuntu2

---
makedumpfile (1:1.6.5-1ubuntu2) eoan; urgency=medium

  [ Thadeu Lima de Souza Cascardo ]
  * Use maxcpus instead of nr_cpus on ppc64el. (LP: #1828597)
  * Reload kdump when CPU is brought online. (LP: #1828596)

 -- Thadeu Lima de Souza Cascardo   Fri, 14 Jun
2019 10:58:40 -0300

** Changed in: makedumpfile (Ubuntu Eoan)
   Status: Fix Committed => Fix Released

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Title:
  KDump boot fails with nr_cpus=1

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-06-20 Thread Thadeu Lima de Souza Cascardo
This is now on eoan-proposed. Please, verify. I will SRU to disco and
cosmic soon, after it gets to eoan.

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Title:
  KDump boot fails with nr_cpus=1

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-06-20 Thread Thadeu Lima de Souza Cascardo
** Changed in: makedumpfile (Ubuntu Eoan)
   Status: Confirmed => Fix Committed

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Title:
  KDump boot fails with nr_cpus=1

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-05-29 Thread Andrew Cloke
Based on the last comment, it looks like IBM's testing was successful and this 
patch is ready for SRU.
Thanks.

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Title:
  KDump boot fails with nr_cpus=1

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-05-21 Thread Andrew Cloke
** Changed in: ubuntu-power-systems
   Status: Incomplete => Confirmed

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  KDump boot fails with nr_cpus=1

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-05-20 Thread Andrew Cloke
Marking as "incomplete" while awaiting test results from Thadeu's PPA.

** Changed in: ubuntu-power-systems
   Status: Confirmed => Incomplete

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  KDump boot fails with nr_cpus=1

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-05-17 Thread Thadeu Lima de Souza Cascardo
I have pushed a fix to my ppa ppa:cascardo/kdump2, for bionic, cosmic,
disco and eoan.

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  KDump boot fails with nr_cpus=1

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-05-10 Thread Thadeu Lima de Souza Cascardo
Okay, let's consider this option on makedumpfile side. I'll test it and
provide a test package by next week.

Cascardo.

** Also affects: makedumpfile (Ubuntu)
   Importance: Undecided
   Status: New

** Changed in: makedumpfile (Ubuntu Eoan)
   Importance: Undecided => High

** Changed in: makedumpfile (Ubuntu Eoan)
   Status: New => Confirmed

** Changed in: makedumpfile (Ubuntu Eoan)
 Assignee: (unassigned) => Thadeu Lima de Souza Cascardo (cascardo)

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  KDump boot fails with nr_cpus=1

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-05-10 Thread Frank Heimes
** Changed in: ubuntu-power-systems
   Status: New => Confirmed

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Title:
  KDump boot fails with nr_cpus=1

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-05-10 Thread Thadeu Lima de Souza Cascardo
This is really a bug on the kernel, after and including 4.18.

This is due to a patch that we have been carrying since forever, and
when the involved code changed a lot from 4.15 to 4.18, the patch was
dropped, as it couldn't be easily fixed up.

Even before that happened, I tried to upstream the patch, resending it
to the mailing list, but PPC maintainers wanted something different. The
original author resent with some modifications, but maintainers wouldn't
still apply it. As far as I remember, that patchset doesn't apply
anymore after the referred changes.

I have tried to work on a different solution, considering the new code
base, but didn't have much time to get a working solution.

Cascardo.

** Also affects: linux (Ubuntu)
   Importance: Undecided
   Status: New

** Also affects: kexec-tools (Ubuntu Disco)
   Importance: Undecided
   Status: New

** Also affects: linux (Ubuntu Disco)
   Importance: Undecided
   Status: New

** Also affects: kexec-tools (Ubuntu Eoan)
   Importance: Undecided
 Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage)
   Status: New

** Also affects: linux (Ubuntu Eoan)
   Importance: Undecided
   Status: New

** Also affects: kexec-tools (Ubuntu Cosmic)
   Importance: Undecided
   Status: New

** Also affects: linux (Ubuntu Cosmic)
   Importance: Undecided
   Status: New

** Changed in: linux (Ubuntu Cosmic)
   Importance: Undecided => High

** Changed in: linux (Ubuntu Disco)
   Importance: Undecided => High

** Changed in: linux (Ubuntu Eoan)
   Importance: Undecided => High

** Changed in: linux (Ubuntu Eoan)
 Assignee: (unassigned) => Thadeu Lima de Souza Cascardo (cascardo)

** Changed in: linux (Ubuntu Disco)
 Assignee: (unassigned) => Thadeu Lima de Souza Cascardo (cascardo)

** Changed in: linux (Ubuntu Cosmic)
 Assignee: (unassigned) => Thadeu Lima de Souza Cascardo (cascardo)

** Changed in: linux (Ubuntu Cosmic)
   Status: New => Confirmed

** Changed in: linux (Ubuntu Eoan)
   Status: New => Confirmed

** Changed in: linux (Ubuntu Disco)
   Status: New => Confirmed

** Changed in: kexec-tools (Ubuntu Eoan)
   Status: New => Invalid

** Changed in: kexec-tools (Ubuntu Disco)
   Status: New => Invalid

** Changed in: kexec-tools (Ubuntu Cosmic)
   Status: New => Invalid

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Title:
  KDump boot fails with nr_cpus=1

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[Bug 1828597] Re: KDump boot fails with nr_cpus=1

2019-05-10 Thread Andrew Cloke
** Also affects: ubuntu-power-systems
   Importance: Undecided
   Status: New

** Changed in: ubuntu-power-systems
 Assignee: (unassigned) => Canonical Kernel Team (canonical-kernel-team)

** Changed in: ubuntu-power-systems
   Importance: Undecided => High

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Title:
  KDump boot fails with nr_cpus=1

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