[GRASS-dev] G7.0.svn: g.remove segfault

[Maris Nartiss]

I can not repeat the issue with current trunk on ~AMD64 Gentoo.
Please provide locale information; run g.remove under valgrind to see
the source of memory corruption.

Māris.


2015-06-25 3:47 GMT+03:00 Vaclav Petras <wenzeslaus at gmail.com>:
>
>
> On Wed, Jun 24, 2015 at 9:29 AM, Vaclav Petras <wenzeslaus at gmail.com> wrote:
>>
>>
>>
>> On Wed, Jun 24, 2015 at 3:12 AM, Markus Neteler <neteler at osgeo.org> wrote:
>>>
>>> On Wed, Jun 24, 2015 at 9:06 AM, Markus Neteler <neteler at osgeo.org>
>>> wrote:
>>> > Hi,
>>> >
>>> > to my surprise I managed to generate a segfault using g.remove:
>>>
>>> please disregard. Apparently a system update triggered this (no idea
>>> how).
>>> "make distclean" helped.
>>
>>
>> Well, you are not the only one with the problem:
>>
>> https://lists.osgeo.org/pipermail/grass-dev/2015-May/075083.html
>>
>> I will have to try distclean, although I think I tried it several times
>> before.
>>
>
> I'm getting the same issues again. Now I actually see a buffer overflow:
>
> *** buffer overflow detected ***: g.remove terminated
> ======= Backtrace: =========
> /lib/x86_64-linux-gnu/libc.so.6(+0x7338f)[0x7fc697b2b38f]
> /lib/x86_64-linux-gnu/libc.so.6(__fortify_fail+0x5c)[0x7fc697bc2c9c]
> /lib/x86_64-linux-gnu/libc.so.6(+0x109b60)[0x7fc697bc1b60]
> /lib/x86_64-linux-gnu/libc.so.6(+0x109069)[0x7fc697bc1069]
> /lib/x86_64-linux-gnu/libc.so.6(_IO_default_xsputn+0xbc)[0x7fc697b3370c]
> /lib/x86_64-linux-gnu/libc.so.6(_IO_vfprintf+0x26b0)[0x7fc697b043a0]
> /lib/x86_64-linux-gnu/libc.so.6(__vsprintf_chk+0x84)[0x7fc697bc10f4]
> /lib/x86_64-linux-gnu/libc.so.6(__sprintf_chk+0x7d)[0x7fc697bc104d]
> /home/vpetras/dev/grass/trunk/dist.x86_64-unknown-linux-gnu/lib/libgrass_manage.7.1.svn.so(M_do_remove+0
> x2e8)[0x7fc6982e9148]
> g.remove(main+0x68d)[0x401c5d]
> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5)[0x7fc697ad9ec5]
> g.remove[0x401e3e]
> ======= Memory map: ========
> 00400000-00403000 r-xp 00000000 08:11 16127189
> /home/vpetras/dev/grass/trunk/d
> ist.x86_64-unknown-linux-gnu/bin/g.remove
> 00602000-00603000 r--p 00002000 08:11 16127189
> /home/vpetras/dev/grass/trunk/d
> ist.x86_64-unknown-linux-gnu/bin/g.remove
> 00603000-00604000 rw-p 00003000 08:11 16127189
> /home/vpetras/dev/grass/trunk/d
> ist.x86_64-unknown-linux-gnu/bin/g.remove
> ...
>
> It fails with a lot of tests but with many other it works. I'm not sure if
> all errors are stack overflow but I could catch all output the a fine next
> time.
>
> Vaclav
>
>
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