*** perf_fuzzer 0.29-pre *** by Vince Weaver
Linux version 3.17.0-rc6hark-perf-lockup+ x86_64
Processor: Intel 6/23/10
Seeding random number generator with 1411654897
/proc/sys/kernel/perf_event_max_sample_rate currently: 100000/s
/proc/sys/kernel/perf_event_paranoid currently: 1
Logging perf_event_open() failures: no
Running fsync after every syscall: no
To reproduce, try: ./perf_fuzzer -r 1411654897
Pid=4076, sleeping 1s
==================================================
Fuzzing the following syscalls:
mmap perf_event_open close read write ioctl fork prctl poll
*NOT* Fuzzing the following syscalls:
Also attempting the following:
signal-handler-on-overflow busy-instruction-loop
accessing-perf-proc-and-sys-files trashing-the-mmap-page
*NOT* attempting the following:
==================================================
... userspace output removed ...
[ 317.153501] NOHZ: local_softirq_pending 100
[ 317.174346] hrtimer: interrupt took 16623 ns
[ 333.608592] NOHZ: local_softirq_pending 100
[ 337.204944] NOHZ: local_softirq_pending 100
[ 346.641345] divide error: 0000 [#1] SMP
[ 346.642010] Modules linked in:
[ 346.642010] CPU: 0 PID: 4076 Comm: perf_fuzzer Not tainted 3.17.0-rc6hark-perf-lockup+ #1
[ 346.642010] Hardware name: LENOVO 7484A3G/LENOVO, BIOS 5CKT54AUS 09/07/2009
[ 346.642010] task: ffff8801ac449a70 ti: ffff8801ac574000 task.ti: ffff8801ac574000
[ 346.642010] RIP: 0010:[] [] ind_busiest_group+0x28e/0x8a0
[ 346.642010] RSP: 0018:ffff8801ac577760 EFLAGS: 00010006
[ 346.642010] RAX: 00000000000003ff RBX: 0000000000000000 RCX: 00000000ffff8801
[ 346.642010] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
[ 346.642010] RBP: ffff8801ac577890 R08: 0000000000000000 R09: 0000000000000000
[ 346.704010] ------------[ cut here ]------------
[ 346.704017] WARNING: CPU: 2 PID: 5 at arch/x86/kernel/irq_64.c:70 handle_irq+0x141/0x150()
[ 346.704019] do_IRQ(): has overflown the kernel stack (cur:1,sp:ffff8801b653fe88,irq stk top-bottom:ffff8801bed00080-ffff8801bed03fc0,exception stk top-bottom:ffff8801bed04080-ffff8801bed0a000)
[ 346.704021] Modules linked in:
[ 346.704023] CPU: 2 PID: 5 Comm: Not tainted 3.17.0-rc6hark-perf-lockup+ #1
[ 346.704023] Hardware name: LENOVO 7484A3G/LENOVO, BIOS 5CKT54AUS 09/07/2009
[ 346.704033] 0000000000000009 ffff8801bed03ea0 ffffffff8190b255 ffff8801bed03ee8
[ 346.704035] ffff8801bed03ed8 ffffffff8104ac28 000000000000001a 000000000000001a
[ 346.704036] 0000000000000061 0000000000000061 0000000000000000 ffff8801bed03f38
[ 346.704037]
----8<----