bisecting fixing commit since 7cc2a8ea104820dd9e702202621e8fd4d9f6c8cf
building syzkaller on 510951950dc0ee69cfdaf746061d3dbe31b49fd8
testing commit 7cc2a8ea104820dd9e702202621e8fd4d9f6c8cf with gcc (GCC) 8.1.0
kernel signature: 1ed3e323f69f3f7f08a14622da92c082a5e7d987f5999f13973916fe84a75fff
run #0: crashed: INFO: rcu detected stall in tc_modify_qdisc
run #1: crashed: INFO: rcu detected stall in tc_modify_qdisc
run #2: crashed: INFO: rcu detected stall in tc_modify_qdisc
run #3: crashed: INFO: rcu detected stall in tc_modify_qdisc
run #4: crashed: INFO: rcu detected stall in tc_modify_qdisc
run #5: crashed: INFO: rcu detected stall in tc_modify_qdisc
run #6: crashed: INFO: rcu detected stall in tc_modify_qdisc
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 dd9fb9bb3340c791a2be106fdc895db75f177343
testing commit dd9fb9bb3340c791a2be106fdc895db75f177343 with gcc (GCC) 8.1.0
kernel signature: 20e2d67f49318b69ef7bdcf77d327379d0705b79db4bb16838e8195727e9e274
run #0: crashed: INFO: rcu detected stall in corrupted
run #1: crashed: INFO: rcu detected stall in tc_modify_qdisc
run #2: crashed: INFO: rcu detected stall in tc_modify_qdisc
run #3: crashed: INFO: rcu detected stall in tc_modify_qdisc
run #4: crashed: INFO: rcu detected stall in tc_modify_qdisc
run #5: crashed: INFO: rcu detected stall in tc_modify_qdisc
run #6: crashed: INFO: rcu detected stall in tc_modify_qdisc
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: 25m22.465870198s (build: 9m15.025870316s, test: 15m33.154836328s)
the crash still happens on HEAD
commit msg: Merge tags 'auxdisplay-for-linus-v5.9-rc4', 'clang-format-for-linus-v5.9-rc4' and 'compiler-attributes-for-linus-v5.9-rc4' of git://github.com/ojeda/linux
crash: no output from test machine