bisecting fixing commit since 7cc2a8ea104820dd9e702202621e8fd4d9f6c8cf
building syzkaller on 510951950dc0ee69cfdaf746061d3dbe31b49fd8
testing commit 7cc2a8ea104820dd9e702202621e8fd4d9f6c8cf with gcc (GCC) 8.4.1 20210217
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: workqueue lockup
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: workqueue lockup
run #7: crashed: BUG: soft lockup in smp_call_function
run #8: crashed: BUG: soft lockup in smp_call_function
run #9: crashed: BUG: soft lockup in smp_call_function
run #10: crashed: BUG: workqueue lockup
run #11: crashed: BUG: soft lockup in smp_call_function
run #12: crashed: BUG: soft lockup in smp_call_function
run #13: crashed: BUG: workqueue lockup
run #14: crashed: BUG: workqueue lockup
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: no output from test machine
run #19: crashed: no output from test machine
testing current HEAD 5e321ded302da4d8c5d5dd953423d9b748ab3775
testing commit 5e321ded302da4d8c5d5dd953423d9b748ab3775 with gcc (GCC) 10.2.1 20210217
kernel signature: 2df1d37db3422726fa77c2940a663327efabf04a3f0d6018618561f1b8560ed7
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: workqueue lockup
run #6: crashed: BUG: soft lockup in smp_call_function
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: 30m2.759344192s (build: 13m5.502905961s, test: 15m59.858522981s)
the crash still happens on HEAD
commit msg: Merge tag 'for-5.13/parisc' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
crash: no output from test machine