This bug was fixed in the package linux - 5.0.0-40.44
---
linux (5.0.0-40.44) disco; urgency=medium
* disco/linux: 5.0.0-40.44 -proposed tracker (LP: #1859724)
* use-after-free in i915_ppgtt_close (LP: #1859522) // CVE-2020-7053
- SAUCE: drm/i915: Fix use-after-free when
moonshot node "ms10-35-mcdivittB0"
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https://bugs.launchpad.net/bugs/1859582
Title:
System hang with kernel traces while entering reboot process on a
Disco ARM64 moonshot node
To
Verified on moonshot node "" with the proposed kernel 5.0.0-40
OK ] Unmounted Mount unit for core, revision 8271.
[ OK ] Unmounted /boot.
[ OK ] Unmounted /run/snapd/ns/lxd.mnt.
Unmounting /run/snapd/ns...
[ OK ] Unmounted /run/snapd/ns.
[ OK ] Stopped target Local File
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-
disco' to 'verification-done-disco'. If the problem still exists, change
the tag
** Changed in: linux (Ubuntu Disco)
Assignee: (unassigned) => Marcelo Cerri (mhcerri)
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Title:
System hang with kernel traces while entering
** Changed in: linux (Ubuntu)
Status: Confirmed => Invalid
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Title:
System hang with kernel traces while entering reboot process on a
Tested #4 with the affected moonshot node, it can be rebooted normally
(however I can't activate the console this time, but at least it won't
hang.)
syslog: http://paste.ubuntu.com/p/RpTsBv9DSs/
Another thing to note is that maas will fail to deploy the node with
Disco image (5.0.0-38) today,
** Changed in: linux (Ubuntu Disco)
Status: Confirmed => Fix Committed
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Title:
System hang with kernel traces while entering reboot
** Tags added: patch
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https://bugs.launchpad.net/bugs/1859582
Title:
System hang with kernel traces while entering reboot process on a
Disco ARM64 moonshot node
To manage
** Patch added: "0001-Revert-RDMA-cm-Fix-memory-leak-in-cm_add-remove_one.patch"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1859582/+attachment/5320111/+files/0001-Revert-RDMA-cm-Fix-memory-leak-in-cm_add-remove_one.patch
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Test kernel for arm64 available at
https://kernel.ubuntu.com/~mhcerri/lp1859582/
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https://bugs.launchpad.net/bugs/1859582
Title:
System hang with kernel traces while entering reboot
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