On Wed, 2017-07-19 at 16:46 -0300, jos...@linux.vnet.ibm.com wrote: > Hello! > > We're not able to boot any KVM guest using upstream kernel > (cb8c65ccff7f77d0285f1b126c72d37b2572c865 - 4.13.0-rc1+). > After reaching the SLOF initial counting, the guest simply freezes:
Can you send our .config ? > SLOF > ********************************************************************** > QEMU Starting > Build Date = Mar 3 2017 13:29:19 > FW Version = git-66d250ef0fd06bb8 > Press "s" to enter Open Firmware. > > C0360 > > After bisecting I found the commit: > > https://github.com/torvalds/linux/commit/ebd3119 > > powerpc/mm: Add devmap support for ppc64 > > Add support for the devmap bit on PTEs and PMDs for PPC64 Book3S. This > is used to differentiate device backed memory from transparent huge > pages since they are handled in more or less the same manner by the core > mm code. > > Reverting the commit and rebuilding 4.13.0-rc1+ was enough to make a > workaround. > But I'll need some help from you guys in order to solve it. > > Thanks! > > Jose Ziviani