bisecting fixing commit since a5aa80588fcd5520ece36121c41b7d8e72245e33
building syzkaller on 4ea67ff893eedeac16a8406659783dcfa6bf8186
testing commit a5aa80588fcd5520ece36121c41b7d8e72245e33 with gcc (GCC) 8.1.0
kernel signature: 919ae8e2dbdf41762cc1746adcd59e85e54c6efa1fd32b2c6ec7007654c52b93
run #0: crashed: INFO: task hung in grab_super
run #1: crashed: INFO: task hung in grab_super
run #2: crashed: INFO: task hung in grab_super
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
testing current HEAD a083db76118d20d070794ecf79af17843406c3f6
testing commit a083db76118d20d070794ecf79af17843406c3f6 with gcc (GCC) 8.1.0
kernel signature: c1691cf73c387bf2e47b5dba2d5a84fdcb4c42441df3aac096138b2b8fc6836e
run #0: crashed: INFO: task hung in grab_super
run #1: crashed: no output from test machine
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: 37m4.542163872s (build: 18m33.645214482s, test: 17m16.26452771s)
the crash still happens on HEAD
commit msg: Linux 4.19.107
crash: no output from test machine