** Changed in: linux (Ubuntu Bionic)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1769730
Title:
Some PCIe errors not surfaced through rasdaemon
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Bionic:
Fix Committed
Bug description:
[Impact]
The APEI (ACPI Platform Error Interface) interface is supposed to report PCIe
errors to the AER (Advanced Error Reporting) driver, which surfaces them to
userspace. However, we're currently only reporting "recoverable" errors and not
errors of other types (e.g. correctable), thus hiding signs of faulty hardware
from the user.
[Test Case]
$ sudo apt install rasdaemon
# On a system that supports ACPI EINJ (dmesg | grep "ACPI: EINJ"), use the
attached script to inject a correctable PCIe error.
$ sudo ras-mc-ctl --errors
# There should be an entry for the injected error, as shown below:
No Memory errors.
PCIe AER events:
1 2018-05-07 17:55:46 +0000 Fatal error: Receiver Error
No Extlog errors.
No MCE errors.
[Fix]
There is a 2-patch upstream fix that addresses this issue and cleanly
cherry-picks into Ubuntu. The solution is to not artficially limit which PCIe
errors are reported down to the AER driver to those that are recoverable.
[Regression Risk]
Above test was ran on x86 & ARM platforms to mitigate regression risk.
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