Excerpts from Christian Zigotzky's message of May 15, 2021 11:46 pm: > On 15 May 2021 at 12:08pm Christophe Leroy wrote: >> >> >> Le 15/05/2021 à 11:48, Christian Zigotzky a écrit : >>> Hi All, >>> >>> I bisected today [1] and the bisecting itself was OK but the >>> reverting of the bad commit doesn't solve the issue. Do you have an >>> idea which commit could be resposible for this issue? Maybe the >>> bisecting wasn't successful. I will look in the kernel git log. Maybe >>> there is a commit that affected KVM HV on FSL P50x0 machines. >> >> If the uImage doesn't load, it may be because of the size of uImage. >> >> See https://github.com/linuxppc/issues/issues/208 >> >> Is there a significant size difference with and without KVM HV ? >> >> Maybe you can try to remove another option to reduce the size of the >> uImage. > I tried it but it doesn't solve the issue. The uImage works without KVM > HV in a virtual e5500 QEMU machine. Any more progress with this? I would say that bisect might have just been a bit unstable and maybe by chance some things did not crash so it's pointing to the wrong patch. Upstream merge of powerpc-5.13-1 was good and powerpc-5.13-2 was bad? Between that looks like some KVM MMU rework. You could try the patch before this one b1c5356e873c ("KVM: PPC: Convert to the gfn-based MMU notifier callbacks"). That won't revert cleanly so just try run the tree at that point. If it works, test the patch and see if it fails. Thanks, Nick
