This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- bionic' to 'verification-done-bionic'. If the problem still exists, change the tag 'verification-needed-bionic' to 'verification-failed- bionic'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-bionic -- 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/1786878 Title: [Regression] kernel crashdump fails on arm64 Status in linux package in Ubuntu: Fix Committed Status in linux source package in Bionic: Fix Committed Bug description: [Impact] With artful, crashdump worked on the Cavium CRBs, Cavium-based Gigabyte boards and the Qualcomm Amberwing board, but it no longer works with v4.15. While possibly not a regression, crashdump also does not currently work with the HiSilicon D05 board, but does with the proposed fixes. [Test Case] sudo apt install linux-crashdump sudo reboot (needed to add crashkernel= param) echo 1 | sudo tee /proc/sys/kernel/sysrq echo c | sudo tee /proc/sysrq-trigger [Fix] Fixes are currently staged in linux-next: 09ffcb0d718a0 arm64: acpi: fix alignment fault in accessing ACPI 20d12cf990618 efi/arm: map UEFI memory map even w/o runtime services enabled 3ea86495aef2f efi/arm: preserve early mapping of UEFI memory map longer for BGRT 5bcd44083a082 drivers: acpi: add dependency of EFI for arm64 50d7ba36b916d arm64: export memblock_reserve()d regions via /proc/iomem [Regression Risk] Patches are all ARM specific. Tested on 4 ARM platforms - those listed above, as well as the HiSilicon D06. These patches are not sufficient to make kdump on the HiSilicon D06 work - but that's not a regression. However, no kdump-unrelated regressions were noticed on the D06. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1786878/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
