** Changed in: linux (Ubuntu)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1694506
Title:
arm-smmu arm-smmu.2.auto: Unhandled context fault
Status in linux package in Ubuntu:
Fix Committed
Status in linux source package in Zesty:
In Progress
Bug description:
[Impact]
When booting hwe-z on a Cavium ThunderX system in ACPI mode, the on-board
NICs don't come up, and the console emits messages like:
[ 78.986867] arm-smmu arm-smmu.2.auto: Unhandled context fault: fsr=0x402,
iova=0x1f60e8d000, fsynr=0x40090, cb=4
[ 78.997030] arm-smmu arm-smmu.2.auto: Unhandled context fault: fsr=0x402,
iova=0x1f4bbdd000, fsynr=0x50090, cb=5
[ 79.185826] arm-smmu arm-smmu.2.auto: Unhandled context fault: fsr=0x402,
iova=0x1f60e8e000, fsynr=0x40090, cb=4
[ 79.195990] arm-smmu arm-smmu.2.auto: Unhandled context fault: fsr=0x402,
iova=0x1f4bbde000, fsynr=0x50090, cb=5
[Test Case]
dmesg | grep "Unhandled context fault"
Onboard NICs work (can ssh into it).
[Regression Risk]
The upstream fix changes are restricted to the NIC driver for this SoC, so
regression risk can be mitigated by direct testing. Non-ACPI mode was also
tested to make sure we're not breaking DT-based platforms while fixing this for
ACPI-based platforms.
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