bisecting fixing commit since a083db76118d20d070794ecf79af17843406c3f6
building syzkaller on c88c7b75a4e022b758f4b0f1bf3db8ebb2fb25e6
testing commit a083db76118d20d070794ecf79af17843406c3f6 with gcc (GCC) 8.1.0
kernel signature: 5e6cd87240a22e5d1761208bf001b01b1beef748a3da59caa2e5ecfdaa9e8dc7
run #0: crashed: INFO: rcu detected stall in kvm_vcpu_ioctl
run #1: crashed: INFO: rcu detected stall in kvm_vcpu_ioctl
run #2: crashed: INFO: rcu detected stall in kvm_vcpu_ioctl
run #3: crashed: INFO: rcu detected stall in kvm_vcpu_ioctl
run #4: crashed: INFO: rcu detected stall in kvm_vcpu_ioctl
run #5: crashed: INFO: rcu detected stall in kvm_vcpu_ioctl
run #6: crashed: INFO: rcu detected stall in kvm_vcpu_ioctl
run #7: crashed: INFO: rcu detected stall in corrupted
run #8: crashed: INFO: rcu detected stall in corrupted
run #9: crashed: no output from test machine
testing current HEAD 258f0cf7ac3b788a14c0d01aab3c4aea02f8c86e
testing commit 258f0cf7ac3b788a14c0d01aab3c4aea02f8c86e with gcc (GCC) 8.1.0
kernel signature: 0c2eab9326fd3fd6bca181c314685b891e44753364063d597d23f63cde7ad143
run #0: crashed: INFO: rcu detected stall in kvm_vcpu_ioctl
run #1: crashed: INFO: rcu detected stall in kvm_vcpu_ioctl
run #2: crashed: INFO: rcu detected stall in corrupted
run #3: crashed: INFO: rcu detected stall in corrupted
run #4: crashed: INFO: rcu detected stall in kvm_vcpu_ioctl
run #5: crashed: INFO: rcu detected stall in kvm_vcpu_ioctl
run #6: crashed: INFO: rcu detected stall in kvm_vcpu_ioctl
run #7: crashed: INFO: rcu detected stall in kvm_vcpu_ioctl
run #8: crashed: INFO: rcu detected stall in corrupted
run #9: crashed: no output from test machine
revisions tested: 2, total time: 36m41.232846885s (build: 19m21.747166208s, test: 16m4.153395212s)
the crash still happens on HEAD
commit msg: Linux 4.19.123
crash: no output from test machine