[mdb-dev] Re: crash in mdb-export (64bit Linux)

[Markus N. <ne...@it...>]

Dear list,

sorry to ask again... do you have any suggestion to
get mdb-export running on a 64bit box?

Thanks

 Markus


On Fri, Jul 15, 2005 at 05:04:23PM +0200, Markus Neteler wrote:
> Hi,
>=20
> I have compiled the today's CVS version of the mdbtools
> on a 64bit Linux machine. Unfortunately the following
> command crashes:
>=20
> mdb-export -I StazioniAutomatiche.mdb Misure =20
> Segmentation fault
>=20
> while it works well on a 32bit Linux machine. Both distros
> are Redhat Enterprise 4 (RHEL4).
>=20
> A bit of debugging (I cannot sent the file since it is 1.4GB):
>=20
> strace mdb-export -I StazioniAutomatiche.mdb Misure
> ...
> read(3, "\1\1\326\16\0\0\0\0\0\0\0\0\4\0\273\17v\0171\17\354\16"..., 40=
96) =3D 4096
> mmap(NULL, 200704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,=
 0) =3D 0x2a95699000
> mmap(NULL, 200704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,=
 0) =3D 0x2a956ca000
> mmap(NULL, 200704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,=
 0) =3D 0x2a956fb000
> fstat(3, {st_mode=3DS_IFREG|0644, st_size=3D1479475200, ...}) =3D 0
> lseek(3, 73728, SEEK_SET)               =3D 73728
> read(3, "\1\1V\6\20\0\0\0\0\0\0\0,\0\313\17\241\17e\0175\17\376"..., 40=
96) =3D 4096
> --- SIGSEGV (Segmentation fault) @ 0 (0) ---
> +++ killed by SIGSEGV +++
>=20
>=20
> gdb `which mdb-export`
> r -I StazioniAutomatiche.mdb Misure
> Program received signal SIGSEGV, Segmentation fault.
> 0x000000345dc227cc in __gconv_transform_ucs2_internal () from /lib64/tl=
s/libc.so.6
> bt
> #0  0x000000345dc227cc in __gconv_transform_ucs2_internal () from /lib6=
4/tls/libc.so.6
> #1  0x000000345dc1d538 in __gconv () from /lib64/tls/libc.so.6
> #2  0x000000345dc1cb9b in iconv () from /lib64/tls/libc.so.6
> #3  0x0000002a955663dc in mdb_unicode2ascii (mdb=3D0x502600, src=3D0x50=
3607 "=B0", slen=3D0,
>     dest=3D0x5199d0 "Temperatura aria Istantanea 60 min", dlen=3D16384)=
 at iconv.c:73
> #4  0x0000002a9555ff47 in mdb_col_to_string (mdb=3D0x502600, buf=3D0x50=
2614, start=3D4047, datatype=3D10,
>     size=3D36) at data.c:848
> #5  0x0000002a9555e83b in mdb_xfer_bound_data (mdb=3D0x502600, start=3D=
4047, col=3D0x515690, len=3D36)
>     at data.c:222
> #6  0x0000002a9555eadd in _mdb_attempt_bind (mdb=3D0x502600, col=3D0x51=
5690, isnull=3D0 '\0',
>     offset=3D4047, len=3D36) at data.c:306
> #7  0x0000002a9555ea2f in mdb_read_row (table=3D0x515210, row=3D0) at d=
ata.c:284
> #8  0x0000002a9555ee6e in mdb_fetch_row (table=3D0x515210) at data.c:40=
2
> #9  0x000000000040121f in main (argc=3D4, argv=3D0x7fbffff808) at mdb-e=
xport.c:157
>=20
> (gdb) bt full
> ...
>     is_fixed =3D 53 '5', colnum =3D 0, offset =3D 4196064}, {value =3D =
0x515610, siz =3D 1569807600,
>     start =3D 52, is_null =3D 48 '0', is_fixed =3D 246 '=F6', colnum =3D=
 127, offset =3D -1073744400}, {
>     value =3D 0x93635d7, siz =3D 4196064, start =3D 0, is_null =3D 0 '\=
0', is_fixed =3D 0 '\0', colnum =3D 0,
>     offset =3D 1568700462}, {value =3D 0x0, siz =3D 1, start =3D 0, is_=
null =3D 0 '\0', is_fixed =3D 0 '\0',
>     colnum =3D 0, offset =3D -1789540033}, {value =3D 0x1000, siz =3D 7=
3728, start =3D 0,
>     is_null =3D 2 '\002', is_fixed =3D 9 '\t', colnum =3D 0, offset =3D=
 13795360}, {value =3D 0x1,
>     siz =3D 33188, start =3D 1338, is_null =3D 204 '=CC', is_fixed =3D =
0 '\0', colnum =3D 0, offset =3D 0}, {
>     value =3D 0x582f0000, siz =3D 4096, start =3D 0, is_null =3D 144 '\=
220', is_fixed =3D 34 '"',
>     colnum =3D 0, offset =3D 1121438862}, {value =3D 0x325bbbe9, siz =3D=
 1111569942, start =3D 0,
>     is_null =3D 0 '\0', is_fixed =3D 0 '\0', colnum =3D 0, offset =3D 1=
121152771}, {value =3D 0x0, siz =3D 0,
>     start =3D 0, is_null =3D 0 '\0', is_fixed =3D 0 '\0', colnum =3D 0,=
 offset =3D 0}, {value =3D 0x1000,
>     siz =3D 18, start =3D 0, is_null =3D 20 '\024', is_fixed =3D 38 '&'=
, colnum =3D 0, offset =3D 5252608}, {
>     value =3D 0x7fbffff630, siz =3D -1789540359, start =3D 42, is_null =
=3D 0 '\0', is_fixed =3D 16 '\020',
>     colnum =3D 0, offset =3D 4096}}
>         num_fields =3D 3
> #8  0x0000002a9555ee6e in mdb_fetch_row (table=3D0x515210) at data.c:40=
2
>         mdb =3D (MdbHandle *) 0x502600
>         fmt =3D (MdbFormatConstants *) 0x2a9566a780
>         rows =3D 44
>         rc =3D 5329424
>         pg =3D 0
> #9  0x000000000040121f in main (argc=3D4, argv=3D0x7fbffff808) at mdb-e=
xport.c:157
>         j =3D 3
>         mdb =3D (MdbHandle *) 0x502600
>         table =3D (MdbTableDef *) 0x515210
>         col =3D (MdbColumn *) 0x0
>         bound_values =3D (char **) 0x517290
>         bound_lens =3D (int *) 0x5159b0
>         delimiter =3D 0x502010 ","
>         row_delimiter =3D 0x502030 "\n"
>         header_row =3D 0 '\0'
>         quote_text =3D 1 '\001'
>         insert_statements =3D 1 '\001'
>         sanitize =3D 0 '\0'
>         opt =3D -1
>=20
>=20
> Using 'ddd' it dies in
> mdb-export.c:157
>  while(mdb_fetch_row(table)) {
>=20
> Do you have any ideas? I'm not sure how to continue
> debugging... The bug seems to be in=20
> mdbtools/src/libmdb/data.c
> Maybe related to guint32? (sorry, just guessing).
>=20
> Thanks anyway for maintaining the mdbtools!
>=20
> Markus
>=20
> --=20
> Markus Neteler     <neteler itc it>       http://mpa.itc.it
> ITC-irst -  Centro per la Ricerca Scientifica e Tecnologica
> MPBA - Predictive Models for Biol. & Environ. Data Analysis
> Via Sommarive, 18        -       38050 Povo (Trento), Italy