[petsc-users] AddressSanitizer: attempting free on address which was not malloc()-ed

[Yuyun Yang]

Hello team,

I ran into the address sanitizer error that I hope you could help me with. I don't really know what's wrong with the way the code frees memory. The relevant code file is attached. The line number following domain.cpp specifically referenced to the vector _q, which seems a little odd, since some other vectors are constructed and freed the same way.

==1719==ERROR: AddressSanitizer: attempting free on address which was not malloc()-ed: 0x61f0000076c0 in thread T0
    #0 0x7fbf195282ca in __interceptor_free (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x982ca)
    #1 0x7fbf1706f895 in PetscFreeAlign /home/yyy910805/petsc/src/sys/memory/mal.c:87
    #2 0x7fbf1731a898 in VecDestroy_Seq /home/yyy910805/petsc/src/vec/vec/impls/seq/bvec2.c:788
    #3 0x7fbf1735f795 in VecDestroy /home/yyy910805/petsc/src/vec/vec/interface/vector.c:408
    #4 0x40dd0a in Domain::~Domain() /home/yyy910805/scycle/source/domain.cpp:132
    #5 0x40b479 in main /home/yyy910805/scycle/source/main.cpp:242
    #6 0x7fbf14d2082f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2082f)
    #7 0x4075d8 in _start (/home/yyy910805/scycle/source/main+0x4075d8)

0x61f0000076c0 is located 1600 bytes inside of 3220-byte region [0x61f000007080,0x61f000007d14)
allocated by thread T0 here:
    #0 0x7fbf19528b32 in __interceptor_memalign (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x98b32)
    #1 0x7fbf1706f7e0 in PetscMallocAlign /home/yyy910805/petsc/src/sys/memory/mal.c:41
    #2 0x7fbf17073022 in PetscTrMallocDefault /home/yyy910805/petsc/src/sys/memory/mtr.c:183
    #3 0x7fbf170710a1 in PetscMallocA /home/yyy910805/petsc/src/sys/memory/mal.c:397
    #4 0x7fbf17326fb0 in VecCreate_Seq /home/yyy910805/petsc/src/vec/vec/impls/seq/bvec3.c:35
    #5 0x7fbf1736f560 in VecSetType /home/yyy910805/petsc/src/vec/vec/interface/vecreg.c:51
    #6 0x7fbf1731afae in VecDuplicate_Seq /home/yyy910805/petsc/src/vec/vec/impls/seq/bvec2.c:807
    #7 0x7fbf1735eff7 in VecDuplicate /home/yyy910805/petsc/src/vec/vec/interface/vector.c:379
    #8 0x4130de in Domain::setFields() /home/yyy910805/scycle/source/domain.cpp:431
    #9 0x40c60a in Domain::Domain(char const*) /home/yyy910805/scycle/source/domain.cpp:57
    #10 0x40b433 in main /home/yyy910805/scycle/source/main.cpp:242
    #11 0x7fbf14d2082f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2082f)

SUMMARY: AddressSanitizer: bad-free ??:0 __interceptor_free
==1719==ABORTING

Thanks very much!
Yuyun
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20190227/fa9da29f/attachment-0001.html>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: domain.cpp
URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20190227/fa9da29f/attachment-0001.ksh>