bisecting fixing commit since a5aa80588fcd5520ece36121c41b7d8e72245e33
building syzkaller on 4ea67ff893eedeac16a8406659783dcfa6bf8186
testing commit a5aa80588fcd5520ece36121c41b7d8e72245e33 with gcc (GCC) 8.1.0
kernel signature: 723ea23df695d107287a20e46fbd56ba6b7a7e5d77b44de70a02d18e6f7a56dc
all runs: crashed: no output from test machine
testing current HEAD 2d16cf4817bc6944a2adb5bf4db607c8258e87da
testing commit 2d16cf4817bc6944a2adb5bf4db607c8258e87da with gcc (GCC) 8.1.0
kernel signature: 43042adba82baec498be58dd2609ec1217900fa7617ead6ec79853280f33b4aa
run #0: crashed: INFO: task hung in grab_super
run #1: crashed: INFO: task hung in grab_super
run #2: crashed: no output from test machine
run #3: crashed: no output from test machine
run #4: crashed: no output from test machine
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: 35m10.865346028s (build: 18m37.144829223s, test: 15m41.344469699s)
the crash still happens on HEAD
commit msg: Linux 4.19.125
crash: no output from test machine