bisecting fixing commit since 7cc2a8ea104820dd9e702202621e8fd4d9f6c8cf
building syzkaller on 510951950dc0ee69cfdaf746061d3dbe31b49fd8
testing commit 7cc2a8ea104820dd9e702202621e8fd4d9f6c8cf
compiler: gcc (GCC) 8.4.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: 1a1d2595ef8b42cb606e33e16b65cfdcc5769cddd33209112c5bdb2507607901
run #0: crashed: BUG: soft lockup in smp_call_function
run #1: crashed: BUG: soft lockup in smp_call_function
run #2: crashed: BUG: soft lockup in smp_call_function
run #3: crashed: BUG: soft lockup in smp_call_function
run #4: crashed: BUG: soft lockup in smp_call_function
run #5: crashed: BUG: soft lockup in smp_call_function
run #6: crashed: BUG: soft lockup in smp_call_function
run #7: crashed: BUG: soft lockup in smp_call_function
run #8: crashed: BUG: soft lockup in smp_call_function
run #9: crashed: BUG: workqueue lockup
run #10: crashed: BUG: soft lockup in smp_call_function
run #11: crashed: BUG: soft lockup in smp_call_function
run #12: crashed: BUG: workqueue lockup
run #13: crashed: BUG: workqueue lockup
run #14: crashed: BUG: soft lockup in smp_call_function
run #15: crashed: INFO: rcu detected stall in sys_clock_settime
run #16: crashed: BUG: soft lockup in smp_call_function
run #17: crashed: BUG: soft lockup in smp_call_function
run #18: crashed: BUG: workqueue lockup
run #19: crashed: BUG: soft lockup in smp_call_function
testing current HEAD c500bee1c5b2f1d59b1081ac879d73268ab0ff17
testing commit c500bee1c5b2f1d59b1081ac879d73268ab0ff17
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: 3664c506144a1724ad1c4afcfc86cc1d4ea454d27e084c2f59892a2912dbc943
run #0: crashed: BUG: soft lockup in smp_call_function
run #1: crashed: BUG: soft lockup in smp_call_function
run #2: crashed: BUG: workqueue lockup
run #3: crashed: BUG: workqueue lockup
run #4: crashed: BUG: workqueue lockup
run #5: crashed: BUG: workqueue lockup
run #6: crashed: INFO: rcu detected stall in do_idle
run #7: crashed: BUG: soft lockup in smp_call_function
run #8: crashed: no output from test machine
run #9: crashed: no output from test machine
revisions tested: 2, total time: 26m47.84098125s (build: 11m38.572361462s, test: 14m28.815198922s)
the crash still happens on HEAD
commit msg: Linux 5.14-rc4
crash: no output from test machine