Magick: abort due to signal 11 (SIGSEGV) "Segmentation Fault"... Aborted (core dumped) how to debug?

[brandy125]

I have a new Mac Studio with Suse aarch64 and I run my software as usual but now I get segfault (sometimes):

Magick: abort due to signal 11 (SIGSEGV) "Segmentation Fault"...
Aborted (core dumped)

The GDL program uses a call_external and I think the c-program that it is calling causes the segfault but I have no idea on how to debug further.

I run with gdb and get following hints:"

Thread 1 "gdl" received signal SIGSEGV, Segmentation fault.
0x0000fffff56149c8 in _int_malloc () from /lib64/libc.so.6
Missing separate debuginfos, use: zypper install glibc-locale-base-debuginfo-2.36-5.1.aarch64 libffi8-debuginfo-3.4.2-2.1.aarch64 liblzma5-debuginfo-5.2.6-1.5.aarch64 libncurses6-debuginfo-6.3.20220910-28.1.aarch64 libreadline8-debuginfo-8.1-3.9.aarch64 libwx_baseu-suse8_0_0-debuginfo-3.2.0-1.3.aarch64 libwx_gtk2u_core-suse8_0_0-debuginfo-3.2.0-1.2.aarch64
(gdb) bt
#0  0x0000fffff56149c8 in _int_malloc () at /lib64/libc.so.6
#1  0x0000fffff56158d4 [PAC] in malloc () at /lib64/libc.so.6
#2  0x0000fffff594b2a0 [PAC] in operator new(unsigned long) (sz=32) at ../../../../libstdc++-v3/libsupc++/new_op.cc:50
#3  0x00000000014a0108 [PAC] in GDLParser::var() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:7198
#4  0x00000000014a100c in GDLParser::array_expr_1st_sub() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:7278
#5  0x00000000014a13c0 in GDLParser::array_expr_1st() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:7318
#6  0x00000000014866a8 in GDLParser::deref_expr() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:4186
#7  0x00000000014a854c in GDLParser::primary_expr_tail() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:8339
#8  0x00000000014aa460 in GDLParser::primary_expr_deref() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:8565
#9  0x00000000014abc7c in GDLParser::primary_expr() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:8809
#10 0x00000000014ac064 in GDLParser::decinc_expr() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:8881
#11 0x00000000014accc0 in GDLParser::exponential_expr() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:9002
#12 0x00000000014ad024 in GDLParser::multiplicative_expr() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:9036
#13 0x00000000014ade10 in GDLParser::signed_multiplicative_expr() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:9205
#14 0x00000000014ae19c in GDLParser::additive_expr() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:9278
#15 0x00000000014af364 in GDLParser::relational_expr() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:9483
#16 0x00000000014afebc in GDLParser::boolean_expr() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:9579
#17 0x00000000014b0638 in GDLParser::logical_expr() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:9645
#18 0x000000000147ce04 in GDLParser::expr() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:2753
#19 0x000000000148f214 in GDLParser::parameter_def() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:5339
#20 0x000000000148e660 in GDLParser::parameter_def_list() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:5156
#21 0x000000000148ea80 in GDLParser::formal_function_call() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:5287
#22 0x00000000014a73b8 in GDLParser::primary_expr_tail() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:8201
#23 0x00000000014aa460 in GDLParser::primary_expr_deref() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:8565
#24 0x00000000014abc7c in GDLParser::primary_expr() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:8809
#25 0x00000000014ac064 in GDLParser::decinc_expr() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:8881
#26 0x00000000014accc0 in GDLParser::exponential_expr() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:9002
#27 0x00000000014ad024 in GDLParser::multiplicative_expr() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:9036
#28 0x00000000014ade10 in GDLParser::signed_multiplicative_expr() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:9205
#29 0x00000000014ae19c in GDLParser::additive_expr() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:9278
#30 0x00000000014af364 in GDLParser::relational_expr() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:9483
#31 0x00000000014afebc in GDLParser::boolean_expr() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:9579
#32 0x00000000014b0638 in GDLParser::logical_expr() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:9645
#33 0x000000000147ce04 in GDLParser::expr() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:2753
#34 0x0000000001478f44 in GDLParser::statement() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:2258
#35 0x0000000001483e1c in GDLParser::compound_statement() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:3870
#36 0x0000000001473850 in GDLParser::statement_list() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:1299
#37 0x0000000001471b24 in GDLParser::procedure_def() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:1056
#38 0x000000000146fd14 in GDLParser::translation_unit() (this=0x36cf0a0) at /home/chris/Downloads/gdl-master/src/GDLParser.cpp:735
#39 0x0000000001d2a464 in GDLInterpreter::CompileFile(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, bool) (f="/media/psf/Home/workspace/dbss_imu_gns/programs/idlcontainer/convert_drange_new.pro", untilPro="CONVERT_DRANGE_NEW", searchForPro=true)
    at /home/chris/Downloads/gdl-master/src/dinterpreter.cpp:613
#40 0x0000000001d29190 in GDLInterpreter::SearchCompilePro(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, bool) (pro="CONVERT_DRANGE_NEW", searchForPro=true) at /home/chris/Downloads/gdl-master/src/dinterpreter.cpp:360
#41 0x0000000001d29960 in GDLInterpreter::GetProIx(ProgNode*) (f=0x4cd93c0) at /home/chris/Downloads/gdl-master/src/dinterpreter.cpp:478
#42 0x0000000001d298fc in GDLInterpreter::SetProIx(ProgNode*) (f=0x4cd93c0) at /home/chris/Downloads/gdl-master/src/dinterpreter.cpp:469
#43 0x00000000023f2900 in PCALLNode::Run() (this=0x5202760) at /home/chris/Downloads/gdl-master/src/prognode.cpp:1186
#44 0x000000000144415c in GDLInterpreter::statement(ProgNode*) (this=0xffffffffdd20, _t=0x4f30270) at /home/chris/Downloads/gdl-master/src/GDLInterpreter.cpp:96
#45 0x00000000014456e4 in GDLInterpreter::call_pro(ProgNode*) (this=0xffffffffdd20, _t=0x4f30270) at /home/chris/Downloads/gdl-master/src/GDLInterpreter.cpp:800
#46 0x00000000023f29e4 in PCALLNode::Run() (this=0x30f63f0) at /home/chris/Downloads/gdl-master/src/prognode.cpp:1204
#47 0x000000000144415c in GDLInterpreter::statement(ProgNode*) (this=0xffffffffdd20, _t=0x30f64a0) at /home/chris/Downloads/gdl-master/src/GDLInterpreter.cpp:96
#48 0x0000000001444070 in GDLInterpreter::interactive(ProgNode*) (this=0xffffffffdd20, _t=0x30f64a0) at /home/chris/Downloads/gdl-master/src/GDLInterpreter.cpp:39
#49 0x0000000001d2cbe8 in DInterpreter::ExecuteLine(std::istream*, unsigned long long) (this=0xffffffffdd20, in=0x0, lineOffset=0) at /home/chris/Downloads/gdl-master/src/dinterpreter.cpp:1287
#50 0x0000000001d2e608 in DInterpreter::InterpreterLoop(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) (this=0xffffffffdd20, startup="/home/chris/.startup_5.6_gdl_dbss.pro", batch_files=std::vector of length 0, capacity 0, statement="") at /home/chris/Downloads/gdl-master/src/dinterpreter.cpp:1778
#51 0x00000000024f727c in main(int, char**) (argc=1, argv=0xffffffffe968) at /home/chris/Downloads/gdl-master/src/gdl.cpp:565
(gdb) 

How can I debug further?
Who can help me?

[GillesDuvert]

Hmm, using call_external on a new architecture, how brave!
A sudden segmentation fault when creating a new array variable during the parsing of a command line --- the most common operation made in GDL ... I would say this is indeed due to the c-program called somehow making a mess in another part of memory.
Which in turn may eventually point to a bug in GDL, who knows, new architectures are good to find defects in programs...
This can be hard to debug, unless it crashes always at the same command line.
If valgrind works on aarch64, it perhaps could tell what memory was crushed, by what part of (C?) code.

[brandy125]

Thanks for the hint. I will try!

…

On 20. Oct 2022, at 04:58, Giloo ***@***.***> wrote: Hmm, using call_external on a new architecture, how brave! A sudden segmentation fault when creating a new array variable during the parsing of a command line --- the most common operation made in GDL ... I would say this is indeed due to the c-program called somehow making a mess in another part of memory. Which in turn may eventually point to a bug in GDL, who knows, new architectures are good to find defects in programs... This can be hard to debug, unless it crashes always at the same command line. If valgrind works on aarch64, it perhaps could tell what memory was crushed, by what part of (C?) code. — Reply to this email directly, view it on GitHub <#1382 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AOC5K6G4DHLBMRO6W6XTAFTWED3SFANCNFSM6AAAAAARJRSIQI>. You are receiving this because you authored the thread.

[brandy125]

Hi folks, I run my program with valgrind and got a 90000 lines report of memory leaks and so on. Can anybody have a quick look on it and give me a hint on what to do next?

[GillesDuvert]

can you provide a link ?

[GillesDuvert]

Thanks. If possible you can remove the attached valgrind_segfault.txt

First there is a memory leak in smooth.cpp that must be solved.

The large number of small loss memory in objects.cpp is probably unavoidable given the code

There is also a small leak problem in open_lun (?) first time I see that.

But this does not IMHO explain the crash. There is no hint of a memory corruption which would appear along with the keyword "allocated" (if I'n not mistaken).

[brandy125]

Thanks!
I will continue debugging...