[Bug 1746860] Re: CPU Soft Lockup Causing Trusty (4.4.0-111-generic) to become unresponsive

2018-02-02 Thread Paul Gear
** Description changed:

  1) The release of Ubuntu you are using, via 'lsb_release -rd' or System -> 
About Ubuntu
  Description:Ubuntu 14.04.5 LTS
  Release:14.04
  
- 2) The version of the package you are using, via 'apt-cache policy pkgname' 
or by checking in Software Center
- Ubuntu 4.4.0-111.134~14.04.1-generic 4.4.98
+ 2) The version of the package you are using, via 'apt-cache policy
+ pkgname' or by checking in Software Center
+ 
+ linux-image-3.16.0-38-generic 3.16.0-38.52~14.04.1 (ksplice effective version 
3.16.0-45-generic)
  qemu-system 2.0.0+dfsg-2ubuntu1.36
  
  3) What you expected to happen
  The system should not have crashed
  
  4) What happened instead
  The system crashed and reported CPU soft lockup errors.
  
  Hi,
  
  we had a system lock up completely today, we noticed the following in the 
logs:
  [84070301.087602] BUG: soft lockup - CPU#1 stuck for 23s! 
[qemu-system-x86:30908]
  [84070301.271530] BUG: soft lockup - CPU#8 stuck for 22s! [khugepaged:238]
  [84070314.314615] INFO: rcu_sched detected stalls on CPUs/tasks: { 0} 
(detected by 19, t=150024 jiffies, g=8647354832, c=8647354831, q=0)
  [84070341.072534] BUG: soft lockup - CPU#1 stuck for 22s! 
[qemu-system-x86:30908]

** Summary changed:

- CPU Soft Lockup Causing Trusty (4.4.0-111-generic) to become unresponsive
+ CPU soft lockup causing trusty (3.16.0-38-generic) to become unresponsive

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Title:
  CPU soft lockup causing trusty (3.16.0-38-generic) to become
  unresponsive

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[Bug 1746860] Re: CPU Soft Lockup Causing Trusty (4.4.0-111-generic) to become unresponsive

2018-02-01 Thread Thomas Cuthbert
** Description changed:

  1) The release of Ubuntu you are using, via 'lsb_release -rd' or System -> 
About Ubuntu
  Description:Ubuntu 14.04.5 LTS
  Release:14.04
  
  2) The version of the package you are using, via 'apt-cache policy pkgname' 
or by checking in Software Center
  Ubuntu 4.4.0-111.134~14.04.1-generic 4.4.98
+ qemu-system 2.0.0+dfsg-2ubuntu1.36
  
  3) What you expected to happen
  The system should not have crashed
  
  4) What happened instead
  The system crashed and reported CPU soft lockup errors.
  
  Hi,
  
  we had a system lock up completely today, we noticed the following in the 
logs:
  [84070301.087602] BUG: soft lockup - CPU#1 stuck for 23s! 
[qemu-system-x86:30908]
  [84070301.271530] BUG: soft lockup - CPU#8 stuck for 22s! [khugepaged:238]
  [84070314.314615] INFO: rcu_sched detected stalls on CPUs/tasks: { 0} 
(detected by 19, t=150024 jiffies, g=8647354832, c=8647354831, q=0)
  [84070341.072534] BUG: soft lockup - CPU#1 stuck for 22s! 
[qemu-system-x86:30908]

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1746860

Title:
  CPU Soft Lockup Causing Trusty (4.4.0-111-generic) to become
  unresponsive

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1746860/+subscriptions

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