Stopping after 30000
Watchdog enabled with timeout 60s
Will auto-exit if signal storm detected
*** perf_fuzzer 0.30-pre *** by Vince Weaver
Linux version 3.19.0+ x86_64
Processor: Intel 6/23/10
Seeding random number generator with 1423846760
/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 -s 30000 -r 1423846760
Pid=4504, 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: 217949 Successful: 1008
EPERM : 42
ENOENT : 1936
E2BIG : 21069
EBADF : 8070
EACCES : 397
EINVAL : 184293
EOPNOTSUPP : 1134
Type (Hardware 209/28749)(software 404/34316)(tracepoint 124/34344)(Cache 41/27378)(cpu 203/34127)(breakpoint 27/33866)(#6 0/37)(#7 0/19)(#8 0/101)(#9 0/29)(#10 0/33)(#11 0/25)(#12 0/39)(#13 0/32)(#14 0/24)(>14 0/24830)
Close attempts: 860 Successful: 860
Read attempts: 871 Successful: 777
Write attempts: 911 Successful: 0
Ioctl attempts: 855 Successful: 397
Mmap attempts: 1008 Successful: 293
Prctl attempts: 890 Successful: 890
Fork attempts: 438 Successful: 438
Poll attempts: 880 Successful: 838
Access attempts: 882 Successful: 423
Trash mmap attempts: 909 Successful: 909
Overflows: 28
SIGIOs due to RT signal queue full: 0
Iteration 20000
Open attempts: 208916 Successful: 918
EPERM : 39
ENOENT : 1932
E2BIG : 20162
EBADF : 7104
EACCES : 453
EINVAL : 177171
ENOSPC : 17
EOPNOTSUPP : 1120
Type (Hardware 183/27543)(software 371/32907)(tracepoint 112/32871)(Cache 45/26097)(cpu 183/33000)(breakpoint 24/32546)(#6 0/33)(#7 0/21)(#8 0/98)(#9 0/28)(#10 0/22)(#11 0/33)(#12 0/33)(#13 0/23)(#14 0/29)(>14 0/23632)
Close attempts: 900 Successful: 900
Read attempts: 892 Successful: 744
Write attempts: 928 Successful: 0
Ioctl attempts: 877 Successful: 420
Mmap attempts: 918 Successful: 216
Prctl attempts: 913 Successful: 913
Fork attempts: 442 Successful: 442
Poll attempts: 924 Successful: 912
Access attempts: 895 Successful: 438
Trash mmap attempts: 934 Successful: 934
Overflows: 0
SIGIOs due to RT signal queue full: 0
[ 1484.379859] ------------[ cut here ]------------
[ 1484.380006] WARNING: CPU: 0 PID: 4504 at arch/x86/kernel/hw_breakpoint.c:119 arch_install_hw_breakpoint+0xe0/0xf8()
[ 1484.380006] Can't find any breakpoint slot
[ 1484.380006] Modules linked in: cpufreq_userspace cpufreq_stats cpufreq_powersave cpufreq_conservative f71882fg mcs7830 usbnet evdev video pcspkr acpi_cpufreq coretemp psmouse serio_raw processor thermal_sys ohci_pci ohci_hcd i2c_nforce2 wmi button sg ehci_pci ehci_hcd sd_mod usbcore usb_common
[ 1484.380006] CPU: 0 PID: 4504 Comm: perf_fuzzer Not tainted 3.19.0+ #201
[ 1484.380006] Hardware name: AOpen DE7000/nMCP7ALPx-DE R1.06 Oct.19.2012, BIOS 080015 10/19/2012
[ 1484.380006] 0000000000000009 ffff8800c0a03bb8 ffffffff81539683 00000000000024f0
[ 1484.380006] ffff8800c0a03c08 ffff8800c0a03bf8 ffffffff8104147b 0000000100000021
[ 1484.380006] ffffffff81009560 0000000000000004 ffff88011abaa000 000001571b9a96d7
[ 1484.380006] Call Trace:
[ 1484.380006] [] dump_stack+0x45/0x57
[ 1484.380006] [] warn_slowpath_common+0xa1/0xbb
[ 1484.380006] [] ? arch_install_hw_breakpoint+0xe0/0xf8
[ 1484.380006] [] warn_slowpath_fmt+0x46/0x48
[ 1484.380006] [] arch_install_hw_breakpoint+0xe0/0xf8
[ 1484.380006] [] hw_breakpoint_add+0x46/0x4a
[ 1484.380006] [] event_sched_in+0x87/0x1b0
[ 1484.380006] [] group_sched_in+0x7c/0x13c
[ 1484.380006] [] __perf_event_enable+0xbb/0xfb
[ 1484.380006] [] remote_function+0x18/0x41
[ 1484.380006] [] ? perf_event_ctx_unlock.isra.54+0x1e/0x1e
[ 1484.380006] [] generic_exec_single+0x3d/0x10d
[ 1484.380006] [] ? update_context_time+0xe/0x31
[ 1484.380006] [] ? perf_event_ctx_unlock.isra.54+0x1e/0x1e
[ 1484.380006] [] smp_call_function_single+0x7f/0x8a
[ 1484.380006] [] task_function_call+0x44/0x4e
[ 1484.380006] [] ? __perf_install_in_context+0xcd/0xcd
[ 1484.380006] [] _perf_event_enable+0x88/0xc0
[ 1484.380006] [] ? task_function_call+0x4e/0x4e
[ 1484.380006] [] perf_event_for_each_child+0x58/0x93
[ 1484.380006] [] perf_event_task_enable+0x62/0x92
[ 1484.380006] [] SyS_prctl+0x155/0x375
[ 1484.380006] [] system_call_fastpath+0x16/0x1b
[ 1484.380006] ---[ end trace d1270db1875e1885 ]---
Iteration 30000