| 2016-02-07 22:01:19 |
Malcolm Scott |
bug |
|
|
added bug |
| 2016-02-07 22:30:06 |
Brad Figg |
linux (Ubuntu): status |
New |
Incomplete |
|
| 2016-02-07 22:30:09 |
Brad Figg |
tags |
|
vivid |
|
| 2016-02-07 22:53:11 |
Malcolm Scott |
linux (Ubuntu): status |
Incomplete |
Confirmed |
|
| 2016-02-11 17:45:46 |
Joseph Salisbury |
tags |
vivid |
kernel-da-key |
|
| 2016-02-11 17:45:49 |
Joseph Salisbury |
linux (Ubuntu): importance |
Undecided |
Medium |
|
| 2016-02-11 18:25:43 |
penalvch |
tags |
kernel-da-key |
cherry-pick kernel-da-key |
|
| 2016-02-11 18:25:50 |
penalvch |
tags |
cherry-pick kernel-da-key |
cherry-pick kernel-da-key reverse-bisect-done |
|
| 2016-02-11 18:28:32 |
penalvch |
description |
Commit 633d6f17cd91ad5bf2370265946f716e42d388c6 (aka 38d30afb12140c0e3a446fe779dc9cd29548f313 in vivid) in Xen domU causes high resource requirements in the underlying target dom0 (migrating a 64-bit domU involves a 1GB malloc in dom0, as well as a lot of unnecessary work).
In my specific case, that 1GB malloc fails as my dom0s aren't big enough, causing all migrations to fail with the migrating VM suspended.
This is fixed in commit 98dd166ea3a3c3b57919e20d9b0d1237fcd0349d "x86/xen: prepare p2m list for memory hotplug":
"""
Commit 054954eb051f35e74b75a566a96fe756015352c8 ("xen: switch to linear
virtual mapped sparse p2m list") introduced a regression regarding to
memory hotplug for a pv-domain: as the virtual space for the p2m list
is allocated for the to be expected memory size of the domain only,
hotplugged memory above that size will not be usable by the domain.
Correct this by using a configurable size for the p2m list in case of
memory hotplug enabled (default supported memory size is 512 GB for
64 bit domains and 4 GB for 32 bit domains).
Signed-off-by: Juergen Gross <jgross@suse.com>
Cc: <stable@vger.kernel.org> # 3.19+
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
"""
Please consider incorporating 98dd166ea3a3c3b57919e20d9b0d1237fcd0349d into the wily and vivid kernels. Thanks. |
Commit 633d6f17cd91ad5bf2370265946f716e42d388c6 (aka 38d30afb12140c0e3a446fe779dc9cd29548f313 in vivid) in Xen domU causes high resource requirements in the underlying target dom0 (migrating a 64-bit domU involves a 1GB malloc in dom0, as well as a lot of unnecessary work).
In my specific case, that 1GB malloc fails as my dom0s aren't big enough, causing all migrations to fail with the migrating VM suspended.
This is fixed in https://marc.info/?l=git-commits-head&m=142800846201785&w=2 :
"x86/xen: prepare p2m list for memory hotplug":
"""
Commit 054954eb051f35e74b75a566a96fe756015352c8 ("xen: switch to linear
virtual mapped sparse p2m list") introduced a regression regarding to
memory hotplug for a pv-domain: as the virtual space for the p2m list
is allocated for the to be expected memory size of the domain only,
hotplugged memory above that size will not be usable by the domain.
Correct this by using a configurable size for the p2m list in case of
memory hotplug enabled (default supported memory size is 512 GB for
64 bit domains and 4 GB for 32 bit domains).
Signed-off-by: Juergen Gross <jgross@suse.com>
Cc: <stable@vger.kernel.org> # 3.19+
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
"""
Please consider incorporating 98dd166ea3a3c3b57919e20d9b0d1237fcd0349d into the wily and vivid kernels. Thanks. |
|
| 2016-02-11 18:28:53 |
penalvch |
description |
Commit 633d6f17cd91ad5bf2370265946f716e42d388c6 (aka 38d30afb12140c0e3a446fe779dc9cd29548f313 in vivid) in Xen domU causes high resource requirements in the underlying target dom0 (migrating a 64-bit domU involves a 1GB malloc in dom0, as well as a lot of unnecessary work).
In my specific case, that 1GB malloc fails as my dom0s aren't big enough, causing all migrations to fail with the migrating VM suspended.
This is fixed in https://marc.info/?l=git-commits-head&m=142800846201785&w=2 :
"x86/xen: prepare p2m list for memory hotplug":
"""
Commit 054954eb051f35e74b75a566a96fe756015352c8 ("xen: switch to linear
virtual mapped sparse p2m list") introduced a regression regarding to
memory hotplug for a pv-domain: as the virtual space for the p2m list
is allocated for the to be expected memory size of the domain only,
hotplugged memory above that size will not be usable by the domain.
Correct this by using a configurable size for the p2m list in case of
memory hotplug enabled (default supported memory size is 512 GB for
64 bit domains and 4 GB for 32 bit domains).
Signed-off-by: Juergen Gross <jgross@suse.com>
Cc: <stable@vger.kernel.org> # 3.19+
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
"""
Please consider incorporating 98dd166ea3a3c3b57919e20d9b0d1237fcd0349d into the wily and vivid kernels. Thanks. |
Commit 633d6f17cd91ad5bf2370265946f716e42d388c6 (aka 38d30afb12140c0e3a446fe779dc9cd29548f313 in vivid) in Xen domU causes high resource requirements in the underlying target dom0 (migrating a 64-bit domU involves a 1GB malloc in dom0, as well as a lot of unnecessary work).
In my specific case, that 1GB malloc fails as my dom0s aren't big enough, causing all migrations to fail with the migrating VM suspended.
This is fixed in https://marc.info/?l=git-commits-head&m=142800846201785&w=2 :
"x86/xen: prepare p2m list for memory hotplug":
"""
Commit 054954eb051f35e74b75a566a96fe756015352c8 ("xen: switch to linear
virtual mapped sparse p2m list") introduced a regression regarding to
memory hotplug for a pv-domain: as the virtual space for the p2m list
is allocated for the to be expected memory size of the domain only,
hotplugged memory above that size will not be usable by the domain.
Correct this by using a configurable size for the p2m list in case of
memory hotplug enabled (default supported memory size is 512 GB for
64 bit domains and 4 GB for 32 bit domains).
Signed-off-by: Juergen Gross <jgross@suse.com>
Cc: <stable@vger.kernel.org> # 3.19+
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
""" |
|
| 2016-02-11 18:30:00 |
penalvch |
linux (Ubuntu): status |
Confirmed |
Triaged |
|
| 2016-02-11 18:39:50 |
Malcolm Scott |
description |
Commit 633d6f17cd91ad5bf2370265946f716e42d388c6 (aka 38d30afb12140c0e3a446fe779dc9cd29548f313 in vivid) in Xen domU causes high resource requirements in the underlying target dom0 (migrating a 64-bit domU involves a 1GB malloc in dom0, as well as a lot of unnecessary work).
In my specific case, that 1GB malloc fails as my dom0s aren't big enough, causing all migrations to fail with the migrating VM suspended.
This is fixed in https://marc.info/?l=git-commits-head&m=142800846201785&w=2 :
"x86/xen: prepare p2m list for memory hotplug":
"""
Commit 054954eb051f35e74b75a566a96fe756015352c8 ("xen: switch to linear
virtual mapped sparse p2m list") introduced a regression regarding to
memory hotplug for a pv-domain: as the virtual space for the p2m list
is allocated for the to be expected memory size of the domain only,
hotplugged memory above that size will not be usable by the domain.
Correct this by using a configurable size for the p2m list in case of
memory hotplug enabled (default supported memory size is 512 GB for
64 bit domains and 4 GB for 32 bit domains).
Signed-off-by: Juergen Gross <jgross@suse.com>
Cc: <stable@vger.kernel.org> # 3.19+
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
""" |
Commit 633d6f17cd91ad5bf2370265946f716e42d388c6 (aka 38d30afb12140c0e3a446fe779dc9cd29548f313 in vivid) in Xen domU causes high resource requirements in the underlying target dom0 (migrating a 64-bit domU involves a 1GB malloc in dom0, as well as a lot of unnecessary work).
In my specific case, that 1GB malloc fails as my dom0s aren't big enough, causing all migrations to fail with the migrating VM suspended.
This is fixed in http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=98dd166ea3a3c3b57919e20d9b0d1237fcd0349d :
"""
x86/xen/p2m: hint at the last populated P2M entry"
With commit 633d6f17cd91ad5bf2370265946f716e42d388c6 (x86/xen: prepare
p2m list for memory hotplug) the P2M may be sized to accomdate a much
larger amount of memory than the domain currently has.
When saving a domain, the toolstack must scan all the P2M looking for
populated pages. This results in a performance regression due to the
unnecessary scanning.
Instead of reporting (via shared_info) the maximum possible size of
the P2M, hint at the last PFN which might be populated. This hint is
increased as new leaves are added to the P2M (in the expectation that
they will be used for populated entries).
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Cc: <stable@vger.kernel.org> # 4.0+
""" |
|
| 2016-02-11 21:10:27 |
Tim Gardner |
nominated for series |
|
Ubuntu Wily |
|
| 2016-02-11 21:10:27 |
Tim Gardner |
bug task added |
|
linux (Ubuntu Wily) |
|
| 2016-02-11 21:10:27 |
Tim Gardner |
nominated for series |
|
Ubuntu Vivid |
|
| 2016-02-11 21:10:27 |
Tim Gardner |
bug task added |
|
linux (Ubuntu Vivid) |
|
| 2016-02-11 21:10:37 |
Tim Gardner |
linux (Ubuntu Vivid): status |
New |
Fix Committed |
|
| 2016-02-11 21:10:42 |
Tim Gardner |
linux (Ubuntu Wily): status |
New |
Fix Committed |
|
| 2016-02-25 15:54:14 |
Brad Figg |
tags |
cherry-pick kernel-da-key reverse-bisect-done |
cherry-pick kernel-da-key reverse-bisect-done verification-needed-vivid |
|
| 2016-02-25 15:54:51 |
Brad Figg |
tags |
cherry-pick kernel-da-key reverse-bisect-done verification-needed-vivid |
cherry-pick kernel-da-key reverse-bisect-done verification-needed-vivid verification-needed-wily |
|
| 2016-02-25 17:22:25 |
Launchpad Janitor |
branch linked |
|
lp:ubuntu/trusty-proposed/linux-lts-vivid |
|
| 2016-03-01 18:08:31 |
Malcolm Scott |
tags |
cherry-pick kernel-da-key reverse-bisect-done verification-needed-vivid verification-needed-wily |
cherry-pick kernel-da-key reverse-bisect-done verification-done-wily verification-needed-vivid |
|
| 2016-03-01 18:23:10 |
Malcolm Scott |
tags |
cherry-pick kernel-da-key reverse-bisect-done verification-done-wily verification-needed-vivid |
cherry-pick kernel-da-key reverse-bisect-done verification-done-vivid verification-done-wily |
|
| 2016-03-14 13:14:39 |
Launchpad Janitor |
linux (Ubuntu Wily): status |
Fix Committed |
Fix Released |
|
| 2016-03-14 13:14:39 |
Launchpad Janitor |
cve linked |
|
2016-2384 |
|
| 2016-03-14 14:01:42 |
Launchpad Janitor |
linux (Ubuntu Vivid): status |
Fix Committed |
Fix Released |
|
