** Description changed: [Impact] - Hangs and lockups are observed when lots of USB interrupts occur. + Hangs and lockups are observed when lots of USB interrupts occur. The + FIQ handling in the dwc_otg driver seems to be particular susceptible to + this setting. [Test Case] Connect a USB/serial adapter to the Pi. Run 'minicom -D /dev/ttyUSB0'. Send data over that serial connection from a remote device. The Pi will hang within seconds. [Regression Potential] + + This change enables full preemption which could uncover all sorts of + problems like hangs and/or lockups.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1890808 Title: Build preemptible raspi kernels To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-raspi/+bug/1890808/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
