Ubuntu
linux package

  1. Cosmic (18.10)
  2. Bug #1828868
  3. Comment #0

Comment 0 for bug 1828868

Revision history for this message
dann frazier (dannf) wrote :

[Impact]
The crashdump kernel fails to boot on HiSilicon D06, and likely other SMMUv3 ARM systems.

[Test Case]
sudo apt install linux-crashdump
Adjust crashkernel= parameter in /etc/default/grub.d/kdump-tools.cfg as appropriate (for D06, crashkernel=512M)
sudo reboot (needed to add crashkernel= param)
echo 1 | sudo tee /proc/sys/kernel/sysrq
echo c | sudo tee /proc/sysrq-trigger

[Fix]
3f54c447df34f iommu/arm-smmu-v3: Don't disable SMMU in kdump kernel

[Regression Risk]