** Changed in: linux-lts-utopic (Ubuntu)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1441291
Title:
support EFI rtc on arm64
Status in linux package in Ubuntu:
Fix Released
Status in linux-lts-utopic package in Ubuntu:
Invalid
Status in linux source package in Trusty:
In Progress
Status in linux-lts-utopic source package in Trusty:
Fix Released
Status in linux source package in Utopic:
Fix Released
Status in linux-lts-utopic source package in Utopic:
Invalid
Bug description:
[Impact]
ARM64 EFI platforms have no real time clock support. This can leave a system
with a very out-of-date system clock. It can be somewhat mitigated by using
NTP, but that still leaves issues in early boot (inaccurate last mount times,
etc).
[Test Case]
if dmesg | grep -q 'rtc-efi: setting system clock'; then
PASS
else
FAIL
fi
[Regression Risk]
This enables a new driver only on ARM64, so the risk should be low to other
platforms. The upstream patches do refactor the rtc-efi driver but, that driver
was previously only compilable on ia64, which isn't supported by Ubuntu.
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