# Track allocation not working (signal(11) SIGSEV)

**URL:** <https://discourse.julialang.org/t/track-allocation-not-working-signal-11-sigsev/3557>\
**Category:** Internals & Design\
**Created:** [May 6, 2017, 9:34am UTC](https://discourse.julialang.org/t/track-allocation-not-working-signal-11-sigsev/3557 "2017-05-06T09:34:36Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![bernhard](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/bernhard/32/2619_2.png) [@bernhard](https://discourse.julialang.org/u/bernhard)\
**Post date:** [May 6, 2017, 9:34am UTC](https://discourse.julialang.org/t/track-allocation-not-working-signal-11-sigsev/3557/1 "2017-05-06T09:34:36Z")

</div>

All

Edit: this is failing for me with 0.5.1 and also 0.6 rc2  
I first posted this under “usage” but got no reply, I was hoping to get some feedback on this, as I really appreciate the possibility to track memory allocation.

I ran this on Win7 64bit  
`"julia.exe" --track-allocation=user "C:\julia\Algorithms\Julia\Code\dev\testing\allocation_w530_min.jl"`

the code in the file very simple

```julia

function my_sin(x)
zk=2*sin(x)
for i=1:99999999
	zk=2*sin(x)
end
return zk
end

@show my_sin(2.991)
my_sin(9)

Profile.clear() # in case we have any previous profiling data
Profile.init()
#Profile.init(10^7, 0.01) #n,delay #Profiling settings

Profile.clear_malloc_data()
juliaresult=my_sin(3.221)

```

The error I get is the following

```julia
signal (11): SIGSEGV
while loading no file, in expression starting on line 0
crt_sig_handler at /home/Administrator/buildbot/slave/package_win6_2-x64/build/src/home/Administrator/bui
ldbot/slave/package_win6_2-x64/build/src\signals-win.c:89
_gnu_exception_handler at /usr/src/debug/mingw64-x86_64-runtime-4.0.6-1/crt\crt_handler.c:223
_C_specific_handler at C:\Windows\SYSTEM32\ntdll.dll (unknown line)
RtlDecodePointer at C:\Windows\SYSTEM32\ntdll.dll (unknown line)
RtlUnwindEx at C:\Windows\SYSTEM32\ntdll.dll (unknown line)
KiUserExceptionDispatcher at C:\Windows\SYSTEM32\ntdll.dll (unknown line)
ZNSt6localeaSERKS_ at C:\JuliaPro-0.5.1.1\Julia-0.5.1\bin\libstdc++-6.dll (unknown line)
ZNSt8ios_base7_M_initEv at C:\JuliaPro-0.5.1.1\Julia-0.5.1\bin\libstdc++-6.dll (unknown line)
ZNSt9basic_iosIcSt11char_traitsIcEE4initEPSt15basic_streambufIcS1_E at C:\JuliaPro-0.5.1.1\Julia-0.5.1\bi
n\libstdc++-6.dll (unknown line)
basic_ifstream at /home/Administrator/buildbot/slave/package_win6_2-x64/build/src/usr/lib/gcc/x86_64-w64-
mingw32/4.9.2/include/c++\fstream:473 [inlined]
write_log_data at /home/Administrator/buildbot/slave/package_win6_2-x64/build/src/home/Administrator/buil
dbot/slave/package_win6_2-x64/build/src\codegen.cpp:1448
jl_atexit_hook at /home/Administrator/buildbot/slave/package_win6_2-x64/build/src/home/Administrator/buil
dbot/slave/package_win6_2-x64/build/src\init.c:239
wmain at /home/Administrator/buildbot/slave/package_win6_2-x64/build/ui\repl.c:244
__tmainCRTStartup at /usr/src/debug/mingw64-x86_64-runtime-4.0.6-1/crt\crtexe.c:329
mainCRTStartup at /usr/src/debug/mingw64-x86_64-runtime-4.0.6-1/crt\crtexe.c:212
BaseThreadInitThunk at C:\Windows\system32\kernel32.dll (unknown line)
RtlUserThreadStart at C:\Windows\SYSTEM32\ntdll.dll (unknown line)
Allocations: 961961 (Pool: 961089; Big: 872); GC: 0

```

Any ideas?