bisecting fixing commit since a5aa80588fcd5520ece36121c41b7d8e72245e33
building syzkaller on 4ea67ff893eedeac16a8406659783dcfa6bf8186
testing commit a5aa80588fcd5520ece36121c41b7d8e72245e33 with gcc (GCC) 8.1.0
kernel signature: 4f92da2462c2634bde834ad1a24f680e1aab74fac68c5e52ed77652e4da54e17
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
testing current HEAD 79524e8c64bda80bb35ab490177d0e6813bf112c
testing commit 79524e8c64bda80bb35ab490177d0e6813bf112c with gcc (GCC) 8.1.0
kernel signature: 0000d7effea1ccee65deefab88d225a79af0946e1979e5c9b3c80032c555ba55
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: 32m40.768422857s (build: 16m19.182002003s, test: 15m32.601493915s)
the crash still happens on HEAD
commit msg: Linux 4.19.153
crash: no output from test machine