Ubuntu
linux package

  1. Bug #1783746
  2. Comment #0

Comment 0 for bug 1783746

Revision history for this message
Marc Dietrich (marvin24) wrote :

Hi,

booting the bionic kernel (4.15.0-29-generic) on my Tegra20 device (no iommu), I found it crashes during display driver setup. The bootlog (and crash) is attached. Asking on Tegra IRC channel, digetx found that this is caused by the IPMMU-VMSA driver which is always registered via initcall. Adding "initcall_blacklist=ipmmu_init" to the kernel parameters makes it boot fine.

Maybe this buggy driver should be disabled in the config (or fixed somehow)?