This bug was fixed in Ubuntu-4.8.0-44.47.
** Also affects: linux (Ubuntu Yakkety)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Yakkety)
Importance: Undecided => Critical
** Changed in: linux (Ubuntu Yakkety)
Status: New => Fix Released
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This bug was fixed in the package linux - 4.10.0-13.15
---
linux (4.10.0-13.15) zesty; urgency=low
[ Tim Gardner ]
* Release Tracking Bug
- LP: #1671614
* ehci-platform needed in usb-modules udeb (LP: #1671589)
- d-i: add ehci-platform to usb-modules
*
** Tags removed: kernel-key
** Tags added: kernel-da-key
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https://bugs.launchpad.net/bugs/1669611
Title:
Regression in 4.4.0-65-generic causes very frequent system crashes
This bug was fixed in the package linux - 4.4.0-67.88
---
linux (4.4.0-67.88) xenial; urgency=low
* linux: 4.4.0-67.88 -proposed tracker (LP: #1667052)
* Recent KVM RTC cherry-picks break (some) Windows Live-Migrations
(LP: #1668594)
- kvm: x86: correctly reset
Based on comment #10 I'm going to mark this as verified.
** Tags removed: verification-needed-xenial verification-needed-yakkety
** Tags added: verification-done-xenial verification-done-yakkety
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Oh, I got confused between the two bug reports. So -67 is just the
revert. If so, then it's fine, we've been running with a pre-upload
build of this provided by Jon for a while now and haven't seen any full
hang. We do still run in the original apparmor bug but it's no worse
than before at least.
I'll install -67 on our jenkins runners and see if we can reproduce it.
The changelog is a bit confusing as it shows a whole bunch of apparmor
reverts, including the commits that were meant to fix this issue. So
it's unclear whether a proper implementation of the fix was then applied
on top. If
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
yakkety' to 'verification-done-yakkety'. If the problem still exists,
change the tag
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
xenial' to 'verification-done-xenial'. If the problem still exists,
change the tag
** Changed in: linux (Ubuntu Xenial)
Status: Triaged => Fix Committed
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https://bugs.launchpad.net/bugs/1669611
Title:
Regression in 4.4.0-65-generic causes very
reverted on zesty (master-next)
21c9d3b UBUNTU: SAUCE: apparmor: fix lock ordering for mkdir
994ebf6 UBUNTU: SAUCE: apparmor: fix leak on securityfs pin count
090d374 UBUNTU: SAUCE: apparmor: fix reference count leak when
securityfs_setup_d_inode() fails
806f146 UBUNTU: SAUCE: apparmor: fix not
The issue appears to be refcount related, I am still chasing this one
down but for this release we should revert
UBUNTU: SAUCE: apparmor: fix lock ordering for mkdir
UBUNTU: SAUCE: apparmor: fix leak on securityfs pin count
UBUNTU: SAUCE: apparmor: fix reference count leak when
It's likely Yakkety has the same issues as well, as we merged lots of
apparmor sauce patches on xenial and yakkety.
Cascardo.
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Running the same thing on zesty to see if the problem is present there too.
We get something a bit different but the result ends up being the same, all the
test runners crash.
```
buildd07 login: [ 976.607283] NMI watchdog: BUG: soft lockup - CPU#3 stuck for
22s! [lxd:34563]
[ 988.645772] NMI
** Tags added: kernel-key
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https://bugs.launchpad.net/bugs/1669611
Title:
Regression in 4.4.0-65-generic causes very frequent system crashes
Status in linux package in
** Also affects: linux (Ubuntu Xenial)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Xenial)
Status: New => Triaged
** Changed in: linux (Ubuntu Xenial)
Importance: Undecided => Critical
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It might be reading too much into the tea leaves but this felt funny:
$ aa-decode 2d5e501d
Decoded: -^P
$ aa-decode 0008
Decoded:
$ aa-decode 2d5b2000
Decoded: -[
$ aa-decode 2d62201d
Decoded: -b
Do any of these sound familiar?
Thanks
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We can reproduce this very easily by triggering a LXD testsuite run
which causes a lot of apparmor profiles and namespaces
creation/deletion, causing this issue. A busy LXD host would also hit
this eventually (if the similar BUG we had before is any indication).
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