On Fri, 28 Oct 2022 at 11:38, Gavin Shan <gshan@xxxxxxxxxx> wrote: > > Hi Ard, > > On 10/28/22 5:21 PM, Ard Biesheuvel wrote: > > On Fri, 28 Oct 2022 at 11:10, Gavin Shan <gshan@xxxxxxxxxx> wrote: > >> I ran into the following crash with v6.1.rc2. I'm not sure if it's known > >> issue. Last good version is v6.0.rc6/rc7. The kernel configuration is attached. > > > > This is probably related to the patch below. It means the firmware is > > buggy, and does not work as it should if the firmware never calls > > SetVirtualAddressMap() [and doing so is explicitly described as > > OPTIONAL by the EFI specification]. > > > > The problem here is that other EFI implementations (primarily the > > Qualcomm ones used on Windows-on-ARM laptops) are buggy too, and don't > > tolerate SetVirtualAddressMap(). > > > > Can you try whether reverting the patch below helps? > > > > I ran into the issue on server, equipped with Ampere CPUs. With d3549a938b73 > reverted, the crash disappeared. > Thanks for confirming Can you please share the complete boot log and the DMI/SMBIOS data? Thanks.
