** Tags added: cscc
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https://bugs.launchpad.net/bugs/1781038
Title:
KVM guest hash page table failed to allocate contiguous memory (CMA)
Status in The
** Changed in: linux (Ubuntu)
Status: New => Invalid
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Title:
KVM guest hash page table failed to allocate contiguous memory
Yes, we have closed the support case on our end at their request.
Apparently increasing the reservation ratio has helped.
Paulus - Hi! Thanks for the info and clearing up some of my
misunderstandings. Great to hear from you and I hope things are going
well at OzLabs :)
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** Changed in: ubuntu-power-systems
Status: Triaged => Opinion
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Title:
KVM guest hash page table failed to allocate
** Attachment added: "var_log_libvirt_qemu.tar.bz2"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1781038/+attachment/5164739/+files/var_log_libvirt_qemu.tar.bz2
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** Attachment added: "syslog"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1781038/+attachment/5164740/+files/syslog
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** Attachment added: "meminfo"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1781038/+attachment/5164738/+files/meminfo
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Based on the most recent information we have available to us
(2018-05-09):
1. What is the server model and at least basic config info (I/O cards,
firmware level)? Use /proc/meminfo, etc. Attach the syslog and the
/var/log/libvirt/qemu logs.
I am struggling a bit to determine the server model,
** Changed in: ubuntu-power-systems
Status: New => Triaged
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https://bugs.launchpad.net/bugs/1781038
Title:
KVM guest hash page table failed to allocate contiguous
** Changed in: linux (Ubuntu)
Importance: Undecided => Critical
** Changed in: linux (Ubuntu)
Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) =>
Canonical Kernel Team (canonical-kernel-team)
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Hi,
This came up in the context of a customer issue. I have asked them if we
can share anonymised data here, and I will pass on any response.
>From my analysis of the code while working the case, it would seem that
you could reproduce this by spinning up and tearing down VMs of varying
memory
** Also affects: ubuntu-power-systems
Importance: Undecided
Status: New
** Changed in: ubuntu-power-systems
Importance: Undecided => Critical
** Changed in: ubuntu-power-systems
Assignee: (unassigned) => Canonical Kernel Team (canonical-kernel-team)
** Tags added: triage-g
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Hello Canonical,
I've subscribed Daniel to this bug for his help getting additional
information on the situation he was working. I expect he will add more
folks from his end if necessary.
Lastly, if you feel the bug should be marked as private for this
discussion, please feel free to do that.
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