bisecting fixing commit since a844dc4c544291470aa69edbe2434b040794e269 building syzkaller on b31eda3df81f62eb7efde0c5d7a9f24ee7e34e6f testing commit a844dc4c544291470aa69edbe2434b040794e269 with gcc (GCC) 8.1.0 kernel signature: 85eb298224f1c8f04bb19fe52cbaa54a9f6593ebf08919a87c4b14508c8542cb all runs: crashed: BUG: unable to handle kernel paging request in do_con_trol testing current HEAD 4139fb08c05fec734f85a99e8b7d99dc12b1b68c testing commit 4139fb08c05fec734f85a99e8b7d99dc12b1b68c with gcc (GCC) 8.1.0 kernel signature: 1de7a79f886430079379ce16f44801e239db3c7ee654af7f458423cb197b7192 all runs: boot failed: WARNING in kvm_mmu_set_mmio_spte_mask revisions tested: 2, total time: 29m48.226622396s (build: 15m42.812200734s, test: 13m39.438535459s) bisection is inconclusive, the first good commit could be any of: a844dc4c544291470aa69edbe2434b040794e269 4139fb08c05fec734f85a99e8b7d99dc12b1b68c