Le 07/03/2020 à 09:42, Christophe Leroy a écrit :
Le 06/03/2020 à 20:05, Nick Desaulniers a écrit :
As a heads up, our CI went red last night, seems like a panic from
free_initmem? Is this a known issue?
Thanks for the heads up.
No such issue with either 8xx or book3s/32.
I've now been able to reproduce it with bamboo QEMU.
Reverting 2efc7c085f05 makes it disappear. I'll investigate.
Ok, I found the problem. virt_to_kpte() lacks a NULL pmd check. I'll
send a patch for that.
However, if there is no PMD I guess this area is mapped through some
kind of block mapping. Therefore it should bail out of the function through:
if (v_block_mapped(address))
return 0;
Can someone who knows BOOKE investigate that ?
Christophe
