** Changed in: linux (Ubuntu)
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/1817918
Title:
Hard lockups due to unrestricted lapic timer delay
S
This bug was fixed in the package linux - 4.4.0-145.171
---
linux (4.4.0-145.171) xenial; urgency=medium
* linux: 4.4.0-145.171 -proposed tracker (LP: #1821724)
* linux-generic should depend on linux-base >=4.1 (LP: #1820419)
- [Packaging] Fix linux-base dependency
linux (4.
Tested kernel in -proposed, version 4.4.0-144-generic (in Xenial).
Problem does not reproduce anymore.
I've used tscdeadline_delay test wrote by Thadeu Cascardo as a kvm-unit-
tests "module" - this specific test is not upstream yet, Cascardo wrote
for this LP in particular and is finishing/polishi
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 'verifica
** Changed in: linux (Ubuntu Xenial)
Status: Confirmed => Fix Committed
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https://bugs.launchpad.net/bugs/1817918
Title:
Hard lockups due to unrestricted lapic timer
SRU request sent to the kernel team mailing list:
https://lists.ubuntu.com/archives/kernel-team/2019-February/098872.html
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Title:
Ha
** Description changed:
- There is a report of hard lockup induced by a long delay in lapic expiration
timer.
- We'll provide SRU request here for merging the fixes in 4.4 kernel.
+ [Impact]
+
+ * There is a long-time report of an issue with the TSC delay present
+ in wait_lapic_expire() - basic
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