aplund

#0  0x00007f440af82060 in sigprocmask () from /usr/lib/libc.so.6
#1  0x00007f440af81c09 in siglongjmp () from /usr/lib/libc.so.6
#2  0x00007f440bb2f1b9 in siglongjmp () from /usr/lib/libpthread.so.0
#3  0x00007f440c4b7721 in ctx_switch (t=0x3ddea10, where=0x3ddea60)
    at task.c:265
#4  0x00007f440c4b77ef in switchto (t=0x3ddea10) at task.c:285
#5  0x00007f440c4b87de in jl_f_yieldto (F=0x39ecb30, args=0x7fff4ad374b8, 
    nargs=2) at task.c:865
#6  0x00007f440a4a70f9 in julia_wait16557 () at task.jl:279
#7  0x00007f440a4b0b84 in julia_wait16897 () at task.jl:189

aplund

commit 363ce14e92f96a1207235391412331e2fc55680a
Author: Austin Lund <[email protected]>
Date:   Tue May 27 10:47:47 2014 +1000

    Change profiler to use SIGUSR2.
    
    It appears that some libraries mask SIGUSR1 for their own purposes.
    This solution is a bit of a hack, but it does allow the profiler to
    work in some more situations than currently.

aplund

(577)[lund@lund-laptop julia]{  2}$ make
 Real BLAS Test Program Results


 Test of subprogram number  1             SDOT 

Program received signal SIGSEGV: Segmentation fault - invalid memory reference.

Backtrace for this error:
#0  0x7F809C23D4D7

aplund

julia> f4(x::Int) = (x <= 1000 && x > 0) ? Base.checked_add(Base.checked_sub(x,1),1) : 0
f4 (generic function with 1 method)

julia> code_llvm(f4,(Int,))

define i64 @julia_f418717(i64) {
top:
  %.off = add i64 %0, -1, !dbg !1590
  %1 = icmp ugt i64 %.off, 999, !dbg !1590
  br i1 %1, label %L5, label %if2, !dbg !1590

aplund

# perf record -e raw_syscalls:sys_enter -ag sleep 0.1

...

0x180758 [0x70]: event: 9
.
. ... raw event: size 112 bytes
.  0000:  09 00 00 00 02 00 70 00 00 00 00 00 00 00 00 00  ......p.........
.  0010:  c0 05 00 00 59 0d 00 00 6a 3f c0 1b 02 07 00 00  ....Y...j?......
.  0020:  02 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00  ................

aplund

# lsof +D /
COMMAND     PID             USER   FD   TYPE DEVICE SIZE/OFF   NODE NAME
systemd       1             root  cwd    DIR  179,1     4096      2 /
systemd       1             root  rtd    DIR  179,1     4096      2 /
systemd       1             root  txt    REG  179,1  1313836  11917 /usr/lib/systemd/systemd
systemd       1             root  mem    REG  179,1    14152  51755 /usr/lib/libuuid.so.1.3.0
systemd       1             root  mem    REG  179,1   215992  51757 /usr/lib/libblkid.so.1.1.0
systemd       1             root  mem    REG  179,1    75484  11752 /usr/lib/libz.so.1.2.8
systemd       1             root  mem    REG  179,1   128848  29500 /usr/lib/liblzma.so.5.2.2
systemd       1             root  mem    REG  179,1    18044  17654 /usr/lib/libdl-2.22.so

aplund

function decode {
	target=0
	len=${#1}
	outstr=""
	while [ $target -lt $len ]
	do
		if [ ${1:$target:1} != '%' ]; then
			outstr=$outstr${1:$target:1}
			target=$(($target + 1))
		elif [ ${1:$target:2} == '%f' ]; then

aplund

from numpy import arange, exp, sqrt
from scipy.special import hermite as H
from scipy.misc import factorial
import matplotlib
font_size=8
matplotlib.rcParams['font.size'] = font_size
matplotlib.rcParams['axes.labelsize'] = font_size
matplotlib.rcParams['axes.linewidth'] = font_size / 12.
matplotlib.rcParams['lines.linewidth'] = font_size / 12.
matplotlib.rcParams['axes.titlesize'] = font_size

aplund

[Match]
Name=br0


[Network]

Address=192.168.1.2/24
Gateway=192.168.1.1
DNS=192.168.1.1
DHCPServer=yes

aplund

[ 1840.556045] ------------[ cut here ]------------
[ 1840.556115] WARNING: CPU: 0 PID: 287 at drivers/net/wireless/intel/iwlwifi/mvm/sta.c:3412 iwl_mvm_sta_modify_sleep_tx_count+0x260/0x2f0 [iwlmvm]
[ 1840.556119] Modules linked in: nls_iso8859_1 nls_cp437 vfat fat snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic arc4 wmi_bmof dell_wmi sparse_keymap h
id_rmi rmi_core intel_rapl intel_soc_dts_thermal intel_soc_dts_iosf intel_powerclamp iTCO_wdt coretemp iTCO_vendor_support kvm_intel kvm iwlmvm mac80211 dell_laptop del
l_smbios dcdbas irqbypass crct10dif_pclmul dell_smm_hwmon crc32_pclmul psmouse ghash_clmulni_intel cryptd intel_cstate input_leds pcspkr cdc_ether usbnet evdev joydev r
8152 mousedev mii mac_hid hid_sensor_magn_3d hid_sensor_incl_3d hid_sensor_als hid_sensor_rotation iwlwifi hid_sensor_gyro_3d hid_sensor_accel_3d hid_sensor_trigger ind
ustrialio_triggered_buffer kfifo_buf hid_sensor_iio_common industrialio cfg80211 uvcvideo btusb btrtl videobuf2_vmalloc videobuf2_memops videobuf2_v