bisecting fixing commit since 4520f06b03ae667e442da1ab9351fd28cd7ac598
building syzkaller on a8c6a3f8da30ccf825c6001c81a8adff21829c30
testing commit 4520f06b03ae667e442da1ab9351fd28cd7ac598 with gcc (GCC) 8.1.0
kernel signature: e0a0c06a847ee0f330066038caa4c3c946c0e9e8ca72534dd3e27b475e8d692e
all runs: crashed: WARNING in task_participate_group_stop
testing current HEAD 56dfe6252c6823c486ce4b1a922d72abc7e3c6b1
testing commit 56dfe6252c6823c486ce4b1a922d72abc7e3c6b1 with gcc (GCC) 8.1.0
kernel signature: f74ebc4a100d1324d9a2eba833a443b0ab8b72d79d8f05b780c1f84ac3b2777a
all runs: boot failed: WARNING in kvm_mmu_set_mmio_spte_mask
revisions tested: 2, total time: 30m45.532417226s (build: 16m8.494187285s, test: 13m57.860275896s)
bisection is inconclusive, the first good commit could be any of:
4520f06b03ae667e442da1ab9351fd28cd7ac598
56dfe6252c6823c486ce4b1a922d72abc7e3c6b1