bisecting fixing commit since 893af1c79e42e53af0da22165b46eea135af0613
building syzkaller on 8620c2c2581732b54045bd75ae1220982fbb650f
testing commit 893af1c79e42e53af0da22165b46eea135af0613 with gcc (GCC) 8.1.0
kernel signature: 80e248d42fef1db558a18169e3a837cfae50c52a0360fdfedd59fbd02e479c21
all runs: crashed: no output from test machine
testing current HEAD d183c8e2647a7d45202c14a33631f6c09020f8ac
testing commit d183c8e2647a7d45202c14a33631f6c09020f8ac with gcc (GCC) 8.1.0
kernel signature: 7047876e37e6a7c0b27939ebcaeb5e15d74b4af8d6c14e5f9a33c1143d2b16fb
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: 38m4.218839339s (build: 18m33.980114004s, test: 18m31.877545394s)
the crash still happens on HEAD
commit msg: Linux 4.19.98
crash: no output from test machine