** Changed in: linux (Ubuntu Bionic)
Status: In Progress => Fix Committed
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1785282
Title:
arm-smmu-v3 arm-smmu-v3.1.auto: failed to allocate MSIs
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Bionic:
Fix Committed
Bug description:
[Impact]
ARM systems w/ an SMMUv3 that uses MSI control interrupts fail to initialize
them, which can e.g. prevent detected device errors from being reported.
[Test Case]
dmesg | grep "failed to allocate MSIs"
grep arm-smmu-v3 /proc/interrupts
[Fix]
Upstream fixes that add support for the SMMUv3 device ID mapping index -
which is required for MSI support - need to be included.
[Regression Risk]
By enabling these interrupts, we're allowing code to run that previously
didn't, which could potentially do bad things. However, the interrupt handlers
look pretty simple/straightforward, and I haven't seen any problems on a system
that uses them w/ the fixes applied.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1785282/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : [email protected]
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
