bisecting fixing commit since fdc072324f3c66190a20f57490b4842a391d8233
building syzkaller on 58ae5e18624eaaac79cab00e63d6f32c9bd64ee0
testing commit fdc072324f3c66190a20f57490b4842a391d8233 with gcc (GCC) 8.1.0
kernel signature: c70dcfa6357c11c23de1e1a365d37840846e1a7e820bc847f2cbf81be37190cb
run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in do_syscall_64
run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in do_syscall_64
run #2: crashed: BUG: unable to handle kernel paging request in do_syscall_64
run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in do_syscall_64
run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in do_syscall_64
run #5: crashed: BUG: unable to handle kernel paging request in update_vsyscall
run #6: crashed: BUG: unable to handle kernel NULL pointer dereference in do_syscall_64
run #7: crashed: BUG: unable to handle kernel paging request in do_syscall_64
run #8: crashed: BUG: unable to handle kernel NULL pointer dereference in do_syscall_64
run #9: crashed: BUG: unable to handle kernel NULL pointer dereference in do_syscall_64
testing current HEAD 13af6c74b14a883366e7702c40c52ff548096e7f
testing commit 13af6c74b14a883366e7702c40c52ff548096e7f with gcc (GCC) 8.1.0
kernel signature: fa8eeb4921de7e3511d7350dc3b3104968918f0da9b2ef3692e818537be77860
run #0: crashed: unexpected kernel reboot
run #1: crashed: WARNING: kernel stack frame pointer has bad value
run #2: crashed: unexpected kernel reboot
run #3: crashed: invalid opcode in corrupted
run #4: crashed: unexpected kernel reboot
run #5: crashed: no output from test machine
run #6: crashed: no output from test machine
run #7: crashed: no output from test machine
run #8: crashed: no output from test machine
run #9: crashed: no output from test machine
revisions tested: 2, total time: 30m59.674222678s (build: 18m43.735275544s, test: 11m6.662120339s)
the crash still happens on HEAD
commit msg: Linux 4.19.136
crash: no output from test machine