Hi Leonardo, yes that's correct.
Focus was changed in the way to make sure that everything is in 19.10, to be
well prepared for 20.04 - and 18.04 (GA kernel 4.15) is not targeted
(nevertheless 18.04 HWE kernel incl. the patches).
(All according to LP comment #66.)
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I know it's an old bug, but I just want to confirm if my understanding
is correct:
- You have received all the suggested patchs, via mailing list
- Some of them could not be accepted
- Paul Mackerras have pointed which patches can be dropped, and which are
needed to fix the issue
- By above comme
** Changed in: linux (Ubuntu Disco)
Importance: Undecided => Medium
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Title:
Avoid migration issues with aligned 2MB THB
To manage notificatio
That was abs. correct, Rafael - thx (I just haven't had the permission
to add D).
** Changed in: linux (Ubuntu Disco)
Status: New => Fix Released
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Frank, based on your previous comment I'm also flagging disco as Fix
Released. Please fix this if it makes no sense (just to be accurate).
Thx!
** Also affects: qemu (Ubuntu Disco)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Disco)
Importance: Undecided
St
I just double-checked all the commits that are mentioned in comment #67.
In between (or let's better say since quite some time) they are all in Eoan
master and are also all in Disco master (and with that even in bionic's hwe
kernel, despite comment #66: 'no need to target bionic').
Hence if one
** Also affects: qemu (Ubuntu Eoan)
Importance: Undecided
Status: Invalid
** Also affects: linux (Ubuntu Eoan)
Importance: Medium
Status: In Progress
** Changed in: linux (Ubuntu Bionic)
Status: In Progress => Won't Fix
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** Changed in: linux (Ubuntu)
Status: Expired => In Progress
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Title:
Avoid migration issues with aligned 2MB THB
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These patches are still needed to solve the bug, so this bug need to be
reopened.
We are waiting for Paul's reply.
** Changed in: linux (Ubuntu Bionic)
Status: Expired => In Progress
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** Changed in: ubuntu-power-systems
Status: Incomplete => Invalid
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Title:
Avoid migration issues with aligned 2MB THB
To manage notificat
This bug has expired, marking it as invalid, please reopen if this is
still a valid issue.
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Title:
Avoid migration issues with aligned 2MB THB
T
[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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[Expired for linux (Ubuntu Bionic) because there has been no activity
for 60 days.]
** Changed in: linux (Ubuntu Bionic)
Status: Incomplete => Expired
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Leonardo, can you elaborate on the 'other possible issues'? We're
hesitant to pull 18 patches into a stable kernel under the assumption
that they *might* fix some *potential* issues, without clear evidence.
If you can test the single-patch kernel and report back that there are
still issues then tha
Leonardo, we're evaluating the patch series for inclusion.
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Title:
Avoid migration issues with aligned 2MB THB
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Leonardo, since you seem to have a reliable reproducer now, could you
give this test kernel [1] a try? It just contains commit c066fafc595e
("KVM: PPC: Book3S HV: Use correct pagesize in kvm_unmap_radix()") and
is basically what Joe gave you (comment #5) but at that time you weren't
able to reprodu
In comment #22 above, it states that "In a meeting with lagarcia, I was
informed this patch is very important, and that it is already on kernel
4.18-15 onwards."
So, I assume that the required patchset(s) are already applied to the
18.04 HWE kernel, and this bug requests a backport to the bionic 4
Stefan NACK'ed the series. For some unknown reason that email did make
it into the archive so here is ist content:
> Since commit fb1522e099f0 ("KVM: update to new mmu_notifier semantic
> v2", 2017-08-31), the MMU notifier code in KVM no longer calls the
> kvm_unmap_hva callback. This removes the
Hi Leonardo,
unfortunately there was an issue with the SRU request and Juerg NACK-ed it,
please have a look here:
https://lists.ubuntu.com/archives/kernel-team/2019-March/099128.html
Please re-submit the SRU request with the requested corrections.
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** Changed in: linux (Ubuntu Bionic)
Status: In Progress => Incomplete
** Changed in: linux (Ubuntu)
Status: In Progress => Incomplete
** Changed in: ubuntu-power-systems
Status: In Progress => Incomplete
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** Changed in: linux (Ubuntu Bionic)
Status: Confirmed => In Progress
** Changed in: linux (Ubuntu)
Status: Confirmed => In Progress
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** Changed in: ubuntu-power-systems
Status: Confirmed => In Progress
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Title:
Avoid migration issues with aligned 2MB THB
To manage notifi
** Attachment added: "patches.tar.gz"
https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1788098/+attachment/5242393/+files/patches.tar.gz
** Changed in: linux (Ubuntu Bionic)
Status: New => Confirmed
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Bugs, whic
ProblemType: Bug
AlsaDevices:
total 0
crw-rw 1 root audio 116, 1 Feb 26 08:00 seq
crw-rw 1 root audio 116, 33 Feb 26 08:00 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: ppc64el
ArecordDevices: Error: [Errn
...or perhaps I've misunderstood. Are the patches listed in comment #23
the complete set required to resolve the issue (with no complex
backporting required)?
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In comment #22, you mentioned working on a backport of these patches to
the Ubuntu 4.15 kernel. Was this successful? Is it possible to attach
the backported patchsets to this bug?
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
** Changed in: ubuntu-power-systems
Assigne
** Changed in: linux (Ubuntu Bionic)
Status: Invalid => New
** Changed in: linux (Ubuntu)
Status: Invalid => New
** Changed in: ubuntu-power-systems
Status: Invalid => Confirmed
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Thanks for all your effort Leonardo,
that seems to make the bug valid again, but I'll leave that to JFH/Manoj to
resurrect it and make it a proper kernel bug as it seems there now is a way to
test it (at least you can do so) and a set of patches. I can not speak for the
ack/nack of those back-po
** Changed in: linux (Ubuntu)
Assignee: Joseph Salisbury (jsalisbury) => (unassigned)
** Changed in: linux (Ubuntu Bionic)
Assignee: Joseph Salisbury (jsalisbury) => (unassigned)
** Changed in: linux (Ubuntu Cosmic)
Assignee: Joseph Salisbury (jsalisbury) => (unassigned)
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Thanks for your continuous efforts on this Leonardo, I have no further
suggestion.
I think to stay on the safe side we will keep everything as-is for now.
I'd say it is IBMs call to decide between this now:
a) Speed: Call 1781526 unblocked by the evaluation here. We'd re-consider
SRUing that bug
** Changed in: ubuntu-power-systems
Status: Incomplete => Invalid
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Title:
Avoid migration issues with aligned 2MB THB
To manage notificat
Hi Leonardo,
thanks for your efforts trying to verify that.
Given that you couldn't trigger it I wonder what to do.
Currently it is incomplete waiting for such a test, but as it seems to elude
you I'd suggest we call the bug invalid until we would know otherwise.
For the related bug 1781526 I wou
** Changed in: linux (Ubuntu)
Importance: Critical => Medium
** Changed in: linux (Ubuntu Bionic)
Importance: Critical => Medium
** Changed in: linux (Ubuntu Cosmic)
Importance: Critical => Medium
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After discussions with IBM, reducing the priority.
** Changed in: ubuntu-power-systems
Importance: Critical => Medium
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Title:
Avoid migration
** Tags removed: triage-a
** Tags added: triage-r
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Nothing yet happened here.
I also declared the related qemu fix that is blocked by this as incomplete.
@manoj/jfh - maybe time for triage-r here?
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Marking as incomplete while awaiting the IBM testing assistance
described in comment #6.
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Title:
Avoid migration issues with aligned 2MB THB
To
** Changed in: ubuntu-power-systems
Status: In Progress => Incomplete
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Avoid migration issues with aligned 2MB THB
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** Tags removed: triage-g
** Tags added: triage-a
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** Changed in: ubuntu-power-systems
Status: New => In Progress
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** Tags removed: targetmilestone-inin---
** Tags added: targetmilestone-inin1804
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Title:
Avoid migration issues with aligned 2MB THB
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--- Comment From jhop...@us.ibm.com 2018-08-30 10:29 EDT---
Thanks, I've asked for some testing assistance from our KVM team but will note
here some of the details from the original report of this problem..
repro steps are just a simple local host migration.
..they later noted that incre
I built a test kernel with the following patch:
KVM: PPC: Book3S HV: Use correct pagesize in kvm_unmap_radix()
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1788098
Can you test this kernel and see if it resolves this bug?
Note about installing test kernels:
• If
** Changed in: linux (Ubuntu Bionic)
Assignee: (unassigned) => Joseph Salisbury (jsalisbury)
** Changed in: linux (Ubuntu Cosmic)
Assignee: (unassigned) => Joseph Salisbury (jsalisbury)
** Changed in: linux (Ubuntu Bionic)
Importance: Medium => Critical
** Changed in: linux (Ubuntu
** Changed in: ubuntu-power-systems
Assignee: Canonical Kernel Team (canonical-kernel-team) => bugproxy
(bugproxy)
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Title:
Avoid migration
** Description changed:
+ FYI: This blocks bug 1781526 - once this one here is resolved we can go
+ on with SRU considerations for 1781526
+
--- Comment From jhop...@us.ibm.com 2018-08-20 17:12 EDT---
- Hi, in some environments it was observed that this qemu patch to enable THP
made it
** Also affects: qemu
Importance: Undecided
Status: New
** No longer affects: qemu
** Also affects: ubuntu-power-systems
Importance: Undecided
Status: New
** Changed in: ubuntu-power-systems
Assignee: (unassigned) => Canonical Kernel Team (canonical-kernel-team)
** Chan
FYI: this is essentially an IBM request, reverse mirroring will happen
at some point, but I wanted to make you aware right now
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Title:
Avoid migr
For this particular case the log files are not needed and/or applicable.
After discussing in #stable-kernel I set it to confirmed.
** Changed in: linux (Ubuntu Bionic)
Status: New => Confirmed
** Changed in: linux (Ubuntu Cosmic)
Status: Incomplete => Confirmed
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Oh, I just realized while initially reported against qemu in bug 1781526
that this is a kernel, and not a qemu patch.
That spreads the timeline a bit:
- this should be in Cosmic before Release to avoid issues due to the fix of
1781526.
- since that is kind of short I'll bump priority there.
- T
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