bisecting fixing commit since 4fa640dc52302b5e62b01b05c755b055549633ae
building syzkaller on 21f1765e15967196c4f3c9756ae4ec8a1fa7996d
testing commit 4fa640dc52302b5e62b01b05c755b055549633ae with gcc (GCC) 8.1.0
kernel signature: b34f5cc65c4946a17e0b58f3eeee3f02706580446ecada4fd9499399153b7a9f
run #0: crashed: INFO: rcu detected stall in mutex_spin_on_owner
run #1: crashed: INFO: rcu detected stall in do_idle
run #2: crashed: INFO: rcu detected stall in do_idle
run #3: crashed: INFO: rcu detected stall in addrconf_dad_work
run #4: crashed: INFO: rcu detected stall in do_idle
run #5: crashed: INFO: rcu detected stall in corrupted
run #6: crashed: INFO: rcu detected stall in iterate_cleanup_work
run #7: crashed: INFO: rcu detected stall in do_idle
run #8: crashed: BUG: soft lockup in do_idle
run #9: crashed: INFO: rcu detected stall in do_idle
testing current HEAD 659caaf65dc9c7150aa3e80225ec6e66b25ab3ce
testing commit 659caaf65dc9c7150aa3e80225ec6e66b25ab3ce with gcc (GCC) 8.1.0
kernel signature: a1b034769d0fc2399cbecc5349099bbf0bde56047647b330d44ebc8466966bb6
run #0: crashed: BUG: soft lockup in do_idle
run #1: crashed: INFO: rcu detected stall in do_idle
run #2: crashed: BUG: soft lockup in do_idle
run #3: crashed: INFO: rcu detected stall in corrupted
run #4: crashed: INFO: rcu detected stall in do_idle
run #5: crashed: INFO: rcu detected stall in khugepaged
run #6: crashed: INFO: rcu detected stall in do_idle
run #7: crashed: INFO: rcu detected stall in do_idle
run #8: crashed: INFO: rcu detected stall in do_idle
run #9: crashed: no output from test machine
revisions tested: 2, total time: 24m33.929599601s (build: 9m23.655290311s, test: 14m31.355435596s)
the crash still happens on HEAD
commit msg: Merge tag 'ceph-for-5.10-rc3' of git://github.com/ceph/ceph-client
crash: no output from test machine