bisecting fixing commit since c636eef2ee3696f261a35f34989842701a107895
building syzkaller on bb3e5fe608aa1d99df8f41cee2dcc33fdef06123
testing commit c636eef2ee3696f261a35f34989842701a107895 with gcc (GCC) 8.1.0
kernel signature: 24727019cf74ceb6c0fa2b3131ce7c8998ee15b84493e5f46b3845fa4d2907f6
run #0: crashed: INFO: rcu detected stall in sys_clock_settime
run #1: crashed: INFO: rcu detected stall in smp_call_function
run #2: crashed: INFO: rcu detected stall in ipv6_rcv
run #3: crashed: INFO: rcu detected stall in corrupted
run #4: crashed: BUG: soft lockup in smp_call_function
run #5: crashed: INFO: rcu detected stall in sys_clock_settime
run #6: crashed: INFO: rcu detected stall in sys_clock_settime
run #7: crashed: INFO: rcu detected stall in sys_clock_settime
run #8: crashed: INFO: rcu detected stall in smp_call_function
run #9: crashed: INFO: rcu detected stall in linkwatch_event
testing current HEAD 23859ae44402f4d935b9ee548135dd1e65e2cbf4
testing commit 23859ae44402f4d935b9ee548135dd1e65e2cbf4 with gcc (GCC) 8.1.0
kernel signature: 07c1a89ed95d4c570e3d1dc73b32e2803e1999e9e8dad3e966a567d92f3d09b8
run #0: crashed: INFO: rcu detected stall in ip_rcv
run #1: crashed: INFO: rcu detected stall in sys_clock_settime
run #2: crashed: INFO: rcu detected stall in corrupted
run #3: crashed: INFO: rcu detected stall in sys_clock_settime
run #4: crashed: INFO: rcu detected stall in linkwatch_event
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: no output from test machine
revisions tested: 2, total time: 26m44.157010758s (build: 11m31.929527275s, test: 14m27.792332694s)
the crash still happens on HEAD
commit msg: Merge tag 'trace-v5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
crash: no output from test machine