[Gambas-devel] gb.net.curl crashes with signal #11, segmentation fault
Sebastian Kulesz
sebikul at ...176...
Sun Feb 10 23:06:53 CET 2013
On Sun, Feb 10, 2013 at 6:46 PM, Benoît Minisini <
gambas at ...1...> wrote:
> Le 10/02/2013 22:15, Sebastian Kulesz a écrit :
> > Hi!
> >
> > I'm using Archlinux, after upgrading curl (7.28.1-1 -> 7.29.0-1) i am
> > getting a crash every time a project (of any type) that loads the
> > gb.net.curl component ends. Here is the backtrace from gdb:
> >
> > (gdb) run
> > Starting program: /usr/bin/gbx3
> > warning: Could not load shared library symbols for linux-vdso.so.1.
> > Do you need "set solib-search-path" or "set sysroot"?
> > [Thread debugging using libthread_db enabled]
> > Using host libthread_db library "/usr/lib/libthread_db.so.1".
> > [New Thread 0x7ffff57ae700 (LWP 3253)]
> > [Thread 0x7ffff57ae700 (LWP 3253) exited]
> > Invalid signature
> >
> > Program received signal SIGSEGV, Segmentation fault.
> > 0x00007ffff62964a0 in curl_multi_cleanup () from /usr/lib/libcurl.so.4
> > (gdb) bt
> > #0 0x00007ffff62964a0 in curl_multi_cleanup () from
> /usr/lib/libcurl.so.4
> > #1 0x000000000040b03b in EXEC_native () at gbx_exec.c:1332
> > #2 0x000000000040b5fd in EXEC_public_desc (class=0x0, class at ...703...
> =0x6b4f78,
> > object=0x61, object at ...703...=0x0, desc=0x61, nparam=7099400, nparam at ...703...
> =0)
> > at gbx_exec.c:1572
> > #3 0x000000000040b682 in EXEC_public (class=class at ...703...=0x6b4f78,
> > object=object at ...703...=0x0, name=name at ...703...=0x43cda2 "_exit",
> > nparam=nparam at ...703...=0)
> > at gbx_exec.c:1595
> > #4 0x000000000040f252 in exit_class (class=0x6b4f78, native=<optimized
> > out>) at gbx_class.c:109
> > #5 exit_class (native=1 '\001', class=0x6b4f78) at gbx_class.c:287
> > #6 CLASS_clean_up (silent=silent at ...703...=0 '\000') at gbx_class.c:386
> > #7 0x000000000042535a in main_exit (silent=0 '\000', silent at ...715....=-19
> > '\355') at gbx.c:128
> > #8 0x0000000000404639 in main (argc=1, argv=0x7fffffffe1c8) at gbx.c:429
> >
> > (gdb) bt full
> > #0 0x00007ffff62964a0 in curl_multi_cleanup () from
> /usr/lib/libcurl.so.4
> > No symbol table info available.
> > #1 0x000000000040b03b in EXEC_native () at gbx_exec.c:1332
> > desc = 0x7ffff66f9f20 <CCurlDesc+192>
> > nparam = 0
> > object = 0x0
> > use_stack = 0 '\000'
> > i = <optimized out>
> > n = <optimized out>
> > nm = <optimized out>
> > value = <optimized out>
> > sign = <optimized out>
> > error = <optimized out>
> > ret = {type = 3, _boolean = {type = 3, value = 34}, _byte =
> {type =
> > 3, value = 34}, _short = {type = 3, value = 34}, _integer = {type = 3,
> > value = 34}, _long = {type = 3, value = 34}, _single =
> {type =
> > 3, value = 4.76441478e-44}, _float = {type = 3,
> > value = 1.6798231958602383e-322}, _date = {type = 3, date =
> 34,
> > time = 0}, _string = {type = 3, addr = 0x22 <Address 0x22 out of bounds>,
> > start = 4253865, len = 9}, _pointer = {type = 3, value =
> 0x22
> > <Address 0x22 out of bounds>}, _function = {type = 3, class = 0x22,
> > object = 0x90040e8a9, kind = 120 'x', defined = 79 'O',
> index =
> > 107}, _variant = {type = 3, vtype = 34, value = {_boolean = -87 '\251',
> > _byte = 169 '\251', _short = -5975, _integer = 4253865,
> _long
> > = 38658959529, _single = 5.96093449e-39, _float =
> 1.9100063807245997e-313,
> > _date = {date = 4253865, time = 9}, _string = 0x90040e8a9
> > <Address 0x90040e8a9 out of bounds>, _pointer = 0x90040e8a9, _object =
> > 0x90040e8a9,
> > data = 38658959529}}, _class = {type = 3, class = 0x22,
> super
> > = 0x90040e8a9}, _object = {class = 0x3, object = 0x22, super =
> > 0x90040e8a9},
> > _void = {type = 3, ptype = 34, value = {38658959529,
> 7032696}}}
> > #2 0x000000000040b5fd in EXEC_public_desc (class=0x0, class at ...703...
> =0x6b4f78,
> > object=0x61, object at ...703...=0x0, desc=0x61, nparam=7099400, nparam at ...703...
> =0)
> > at gbx_exec.c:1572
> > No locals.
> > #3 0x000000000040b682 in EXEC_public (class=class at ...703...=0x6b4f78,
> > object=object at ...703...=0x0, name=name at ...703...=0x43cda2 "_exit",
> > nparam=nparam at ...703...=0)
> > at gbx_exec.c:1595
> > desc = <optimized out>
> > #4 0x000000000040f252 in exit_class (class=0x6b4f78, native=<optimized
> > out>) at gbx_class.c:109
> > No locals.
> > #5 exit_class (native=1 '\001', class=0x6b4f78) at gbx_class.c:287
> > No locals.
> > #6 CLASS_clean_up (silent=silent at ...703...=0 '\000') at gbx_class.c:386
> > n = <optimized out>
> > nc = 4
> > nb = <optimized out>
> > class = 0x6b4f78
> > #7 0x000000000042535a in main_exit (silent=0 '\000', silent at ...715....=-19
> > '\355') at gbx.c:128
> > __err = <optimized out>
> > __err_context = {prev = 0x0, handler = 0x0, info = {code = 0
> > '\000', native = 0 '\000', free = -1 '\377', _reserved = -1 '\377', cp =
> > 0x0,
> > fp = 0x0, pc = 0x31b46c48413b6c8b, msg = 0xce4b9336b8076c8b
> > <Address 0xce4b9336b8076c8b out of bounds>}, env = {{__jmpbuf = {0,
> > -3581606660242051957, 4212308, 140737488347584, 0, 0,
> > 3581606661264731275, -3581607229822243701}, __mask_was_saved = 0,
> > __saved_mask = {
> > __val = {0, 16, 0, 7109608, 1, 1, 4212308,
> 140737488347584,
> > 0, 1, 0, 1, 4212308, 0, 1, 4212308}}}}, ret = 0 '\000'}
> > #8 0x0000000000404639 in main (argc=1, argv=0x7fffffffe1c8) at gbx.c:429
> > startup = 0x6c7d88
> > i = 1
> > n = 7099400
> > file = 0x4390ed "."
> > ret = 0
> > (gdb)
> >
> > I read the curl webpage, but saw no info about breaking changes. The
> > component works perfectly, it just shows a message at the end of the
> > execution that it crashed.
> > Let me know if you need me to compile curl with debugging symbols too.
> >
> > Thanks!
> >
>
> Well, it crashes inside the libcurl library apparently. Try to run the
> project with valgrind to see if this is not the consequence of an
> earlier illegal memory access.
>
> Regards,
>
> --
> Benoît Minisini
>
>
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Here is the output of valgrind --tool=memcheck --num-callers=50
--leak-check=full gbx3 > valgrind.out 2>&1
I added --leak-check=full just in case it was missing anything.
Thanks!
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