bisecting fixing commit since ae4b064e2a616b545acf02b8f50cc513b32c7522
building syzkaller on 08003f6440deafc4e193b159c4acece64f7864b1
testing commit ae4b064e2a616b545acf02b8f50cc513b32c7522 with gcc (GCC) 8.1.0
kernel signature: c8b99c814865bec7e765bc76f711647206059747fdac7a14492c468c6254e5ca
run #0: crashed: INFO: rcu detected stall in chrdev_open
run #1: crashed: INFO: rcu detected stall in corrupted
run #2: crashed: INFO: rcu detected stall in corrupted
run #3: crashed: INFO: rcu detected stall in corrupted
run #4: crashed: INFO: rcu detected stall in corrupted
run #5: crashed: INFO: rcu detected stall in chrdev_open
run #6: crashed: INFO: rcu detected stall in chrdev_open
run #7: crashed: INFO: rcu detected stall in chrdev_open
run #8: crashed: INFO: rcu detected stall in corrupted
run #9: crashed: INFO: rcu detected stall in chrdev_open
testing current HEAD 92ed301919932f777713b9172e525674157e983d
testing commit 92ed301919932f777713b9172e525674157e983d with gcc (GCC) 8.1.0
kernel signature: c1abb19878b6ffc6b038db526738cb188f70458d476a3cdec5433f95eca4129c
run #0: crashed: INFO: rcu detected stall in corrupted
run #1: crashed: INFO: rcu detected stall in corrupted
run #2: crashed: INFO: rcu detected stall in corrupted
run #3: crashed: INFO: rcu detected stall in chrdev_open
run #4: crashed: INFO: rcu detected stall in chrdev_open
run #5: crashed: INFO: rcu detected stall in chrdev_open
run #6: crashed: INFO: rcu detected stall in corrupted
run #7: crashed: INFO: rcu detected stall in corrupted
run #8: crashed: INFO: rcu detected stall in corrupted
run #9: crashed: no output from test machine
revisions tested: 2, total time: 24m26.007487184s (build: 10m47.300694954s, test: 13m1.91900053s)
the crash still happens on HEAD
commit msg: Linux 5.8-rc7
crash: no output from test machine