*** perf_fuzzer 0.31-pre *** by Vince Weaver
Linux version 4.1.0-rc7+ x86_64
Processor: Intel 6/60/3
Seeding random number generator with 1434073616
/proc/sys/kernel/perf_event_max_sample_rate currently: 50000/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 -s 30000 -r 1434073616
Pid=2685, 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:
==================================================
Iteration 10000
Open attempts: 137243 Successful: 879 Currently open: 50
EPERM : 17
ENOENT : 791
E2BIG : 12161
EBADF : 11651
EACCES : 550
EBUSY : 3
EINVAL : 110844
EOPNOTSUPP : 347
Type (Hardware 219/19290)(software 326/20010)(tracepoint 53/19787)(Cache 42/17112)(cpu 185/19677)(breakpoint 10/19520)(power 0/2423)(intel_bts 44/2483)(uncore_imc 0/2591)(#9 0/17)(#10 0/15)(#11 0/3)(#12 0/11)(#13 0/11)(#14 0/8)(>14 0/14285)
Close: 829/829 Successful
Read: 803/877 Successful
Write: 0/852 Successful
Ioctl: 387/891 Successful: (ENABLE 98/98)(DISABLE 102/102)(REFRESH 3/93)(RESET 78/78)(PERIOD 7/90)(SET_OUTPUT 5/92)(SET_FILTER 0/94)(ID 94/94)(SET_BPF 0/71)(#9 0/0)(#10 0/0)(#11 0/0)(#12 0/0)(#13 0/0)(#14 0/0)(>14 0/79)
Mmap: 441/1042 Successful: (MMAP 441/1042)(TRASH 127/156)(READ 26/164)(UNMAP 441/991)(AUX 4/260)(AUX_READ 4/16)
Prctl: 888/888 Successful
Fork: 453/453 Successful
Poll: 853/921 Successful
Access: 463/922 Successful
Overflows: 15
SIGIOs due to RT signal queue full: 0
[36298.986117] BUG: spinlock recursion on CPU#4, perf_fuzzer/3410
[36298.992915] lock: 0xffff88011edf7cd0, .magic: dead4ead, .owner: perf_fuzzer/3410, .owner_cpu: 4
[36299.002919] CPU: 4 PID: 3410 Comm: perf_fuzzer Tainted: G W 4.1.0-rc7+ #155
[36299.012152] Hardware name: LENOVO 10AM000AUS/SHARKBAY, BIOS FBKT72AUS 01/26/2014
[36299.020606] ffff88011edf7cd0 ffff88011eb059a0 ffffffff816d7229 0000000000000054
[36299.029199] ffff8800c2f4ac50 ffff88011eb059c0 ffffffff810c2895 ffff88011edf7cd0
[36299.037796] ffffffff81a1e481 ffff88011eb059e0 ffffffff810c2916 ffff88011edf7cd0
[36299.046338] Call Trace:
[36299.049501] [] dump_stack+0x45/0x57
[36299.056284] [] spin_dump+0x85/0xe0
[36299.062282] [] spin_bug+0x26/0x30
[36299.068111] [] do_raw_spin_lock+0x13f/0x180
[36299.074897] [] _raw_spin_lock+0x39/0x40
[36299.081276] [] ? free_pcppages_bulk+0x39/0x620
[36299.088340] [] free_pcppages_bulk+0x39/0x620
[36299.095182] [] ? free_pages_prepare+0x3a4/0x550
[36299.102291] [] ? kfree_debugcheck+0x16/0x40
[36299.108987] [] free_hot_cold_page+0x178/0x1a0
[36299.115850] [] __free_pages+0x37/0x50
[36299.121991] [] rb_free_aux+0xba/0xf0
[36299.128034] [] perf_aux_output_end+0xb7/0xf0
[36299.134793] [] intel_bts_interrupt+0x8e/0xd0
[36299.141543] [] intel_pmu_handle_irq+0x4f/0x450
[36299.148482] [] ? check_chain_key+0x128/0x1e0
[36299.155249] [] perf_event_nmi_handler+0x2b/0x50
[36299.162273] [] nmi_handle+0xa0/0x150
[36299.168278] [] ? nmi_handle+0x5/0x150
[36299.174377] [] default_do_nmi+0x4a/0x140
[36299.180735] [] do_nmi+0x98/0xe0
[36299.186219] [] end_repeat_nmi+0x1e/0x2e
[36299.192501] [] ? __lock_acquire.isra.31+0x27e/0x1000
[36299.199951] [] ? __lock_acquire.isra.31+0x27e/0x1000
[36299.207410] [] ? __lock_acquire.isra.31+0x27e/0x1000
[36299.214898] <> [] ? __lock_acquire.isra.31+0x3b9/0x1000
[36299.223222] [] lock_acquire+0xa5/0x130
[36299.229409] [] ? __rmqueue+0x109/0x510
[36299.235551] [] ? __rmqueue+0x109/0x510
[36299.241720] [] bad_range+0x6b/0x150
[36299.247612] [] ? __rmqueue+0x109/0x510
[36299.253757] [] ? perf_output_begin+0x5/0x270
[36299.260489] [] __rmqueue+0x109/0x510
[36299.266501] [] get_page_from_freelist+0x7e3/0xa50
[36299.273680] [] __alloc_pages_nodemask+0x1fb/0xa90
[36299.280872] [] ? alloc_pages_vma+0x10b/0x290
[36299.287586] [] ? __lock_acquire.isra.31+0x3b9/0x1000
[36299.295017] [] alloc_pages_vma+0x10b/0x290
[36299.301544] [] ? wp_page_copy.isra.51+0x84/0x4f0
[36299.308613] [] wp_page_copy.isra.51+0x84/0x4f0
[36299.315506] [] ? do_wp_page+0x84/0x6a0
[36299.321633] [] do_wp_page+0x9d/0x6a0
[36299.327533] [] ? handle_mm_fault+0x309/0x1770
[36299.334245] [] handle_mm_fault+0xdec/0x1770
[36299.340854] [] __do_page_fault+0x1b4/0x460
[36299.347337] [] trace_do_page_fault+0x3e/0xc0
[36299.354021] [] trace_page_fault+0x28/0x30
[36315.086708] ------------[ cut here ]------------