bisecting fixing commit since 4520f06b03ae667e442da1ab9351fd28cd7ac598
building syzkaller on a8c6a3f8da30ccf825c6001c81a8adff21829c30
testing commit 4520f06b03ae667e442da1ab9351fd28cd7ac598 with gcc (GCC) 8.1.0
kernel signature: 7e8d5393487039dce53f76605b443544e2f2707ed11fbd4123d6083ddf6a3a06
all runs: crashed: WARNING in kcm_write_msgs
testing current HEAD 56dfe6252c6823c486ce4b1a922d72abc7e3c6b1
testing commit 56dfe6252c6823c486ce4b1a922d72abc7e3c6b1 with gcc (GCC) 8.1.0
kernel signature: 832d109a8dfec0c4b9bbfd6c52ecb99ea75811d717cdd37bd7f1cadba1d48186
all runs: boot failed: WARNING in kvm_mmu_set_mmio_spte_mask
revisions tested: 2, total time: 30m55.231837159s (build: 16m26.643981952s, test: 13m50.010604112s)
bisection is inconclusive, the first good commit could be any of:
4520f06b03ae667e442da1ab9351fd28cd7ac598
56dfe6252c6823c486ce4b1a922d72abc7e3c6b1