> On 22-Jun-2023, at 8:08 PM, Limonciello, Mario <Mario.Limonciello@xxxxxxx> wrote: > > > On 6/22/2023 7:36 AM, Michael Ellerman wrote: >> "Linux regression tracking (Thorsten Leemhuis)" <regressions@xxxxxxxxxxxxx> writes: >>> Hi, Thorsten here, the Linux kernel's regression tracker. Top-posting >>> for once, to make this easily accessible to everyone. >>> >>> As Linus will likely release 6.4 on this or the following Sunday a quick >>> question: is there any hope this regression might be fixed any time >>> soon? >> No. >> >> I have added the author of the commit to Cc, maybe they can help? >> >> The immediate question is, is it expected for chip->ops to be NULL in >> this path? Obviously on actual AMD systems that isn't the case, >> otherwise the code would crash there. But is the fact that chip->ops is >> NULL a bug in the ibmvtpm driver, or a possibility that has been >> overlooked by the checking code. >> >> cheers > > All that code assumes that the TPM is still functional which > seems not to be the case for your TPM. > > This should fix it: Yes, with this change kexec works correctly. Since Aneesh first reported this problem including reported by credit for him Reported-by: Aneesh Kumar K. V <aneesh.kumar@xxxxxxxxxxxxx> Reported-by: Sachin Sant <sachinp@xxxxxxxxxxxxx> Tested-by: Sachin Sant <sachinp@xxxxxxxxxxxxx> -Sachin
