bisecting fixing commit since 4c5bf01e16a7ec59e59a38a61f793c5d1d5560c7
building syzkaller on 25a0186eba20ef6f4f657039ff02eff52a838b1c
testing commit 4c5bf01e16a7ec59e59a38a61f793c5d1d5560c7 with gcc (GCC) 8.1.0
kernel signature: da212bc7ea0867390565036ffc614a6da6441b3a8b929218be3b08c7dda1a563
all runs: crashed: WARNING: bad unlock balance in ucma_event_handler
testing current HEAD 4139fb08c05fec734f85a99e8b7d99dc12b1b68c
testing commit 4139fb08c05fec734f85a99e8b7d99dc12b1b68c with gcc (GCC) 8.1.0
kernel signature: 82ceab06fdd5c7165c60862c483e48984b5a526046b4d35694c91789ff13d189
all runs: boot failed: WARNING in kvm_mmu_set_mmio_spte_mask
revisions tested: 2, total time: 29m53.402848149s (build: 15m40.350454537s, test: 13m47.273840959s)
bisection is inconclusive, the first good commit could be any of:
4c5bf01e16a7ec59e59a38a61f793c5d1d5560c7
4139fb08c05fec734f85a99e8b7d99dc12b1b68c