bisecting fixing commit since 78d697fc93f98054e36a3ab76dca1a88802ba7be
building syzkaller on c88c7b75a4e022b758f4b0f1bf3db8ebb2fb25e6
testing commit 78d697fc93f98054e36a3ab76dca1a88802ba7be with gcc (GCC) 8.1.0
kernel signature: a3cef7306d95bf58ee11a3d89c8fbdc31b85579e53df613a5d59fd4a82b41baa
run #0: crashed: INFO: task hung in lo_open
run #1: crashed: INFO: task hung in lo_open
run #2: crashed: INFO: task hung in lo_open
run #3: crashed: INFO: task hung in lo_open
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
testing current HEAD 4139fb08c05fec734f85a99e8b7d99dc12b1b68c
testing commit 4139fb08c05fec734f85a99e8b7d99dc12b1b68c with gcc (GCC) 8.1.0
kernel signature: 9d66a9dfb988ab19373e20f0b9183a1983215496a1d67056eb2951d980bae8c1
all runs: boot failed: WARNING in kvm_mmu_set_mmio_spte_mask
revisions tested: 2, total time: 37m54.701042708s (build: 15m47.917280344s, test: 21m37.537588751s)
bisection is inconclusive, the first good commit could be any of:
78d697fc93f98054e36a3ab76dca1a88802ba7be
4139fb08c05fec734f85a99e8b7d99dc12b1b68c