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AW: [mdb-dev] Re: crash in mdb-export (64bit Linux)
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From: Carsten E. <ce...@if...> - 2005-08-04 13:52:41
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Hi Markus,
Somedays ago Brian Bruns wrote:
>I'd be interested in fixing the CVS version. I don't have access to a
>solaris box though. I could try it on AIX and perhaps find
>something...do you have a sample database which demonstrates the
>problem? The other possibility is that it is a 32bit/64bit issue.
>I'm not sure it is 64bit clean, can you set the compiler flags to
^^^ ^^^^^^^^^^^
>force 32bit mode? (not sure how to do it on sparc, sorry).
This maybe also releated to you problem.
-- Carsten
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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,
>
> I have compiled the today's CVS version of the mdbtools
> on a 64bit Linux machine. Unfortunately the following
> command crashes:
>
> mdb-export -I StazioniAutomatiche.mdb Misure
> Segmentation fault
>
> while it works well on a 32bit Linux machine. Both distros
> are Redhat Enterprise 4 (RHEL4).
>
> A bit of debugging (I cannot sent the file since it is 1.4GB):
>
> 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"..., 4096)
= 4096
> mmap(NULL, 200704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x2a95699000
> mmap(NULL, 200704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x2a956ca000
> mmap(NULL, 200704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x2a956fb000
> fstat(3, {st_mode=S_IFREG|0644, st_size=1479475200, ...}) = 0
> lseek(3, 73728, SEEK_SET) = 73728
> read(3, "\1\1V\6\20\0\0\0\0\0\0\0,\0\313\17\241\17e\0175\17\376"..., 4096)
= 4096
> --- SIGSEGV (Segmentation fault) @ 0 (0) ---
> +++ killed by SIGSEGV +++
>
>
> gdb `which mdb-export`
> r -I StazioniAutomatiche.mdb Misure
> Program received signal SIGSEGV, Segmentation fault.
> 0x000000345dc227cc in __gconv_transform_ucs2_internal () from
/lib64/tls/libc.so.6
> bt
> #0 0x000000345dc227cc in __gconv_transform_ucs2_internal () from
/lib64/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=0x502600, src=0x503607
"°", slen=0,
> dest=0x5199d0 "Temperatura aria Istantanea 60 min", dlen=16384) at
iconv.c:73
> #4 0x0000002a9555ff47 in mdb_col_to_string (mdb=0x502600, buf=0x502614,
start=4047, datatype=10,
> size=36) at data.c:848
> #5 0x0000002a9555e83b in mdb_xfer_bound_data (mdb=0x502600, start=4047,
col=0x515690, len=36)
> at data.c:222
> #6 0x0000002a9555eadd in _mdb_attempt_bind (mdb=0x502600, col=0x515690,
isnull=0 '\0',
> offset=4047, len=36) at data.c:306
> #7 0x0000002a9555ea2f in mdb_read_row (table=0x515210, row=0) at
data.c:284
> #8 0x0000002a9555ee6e in mdb_fetch_row (table=0x515210) at data.c:402
> #9 0x000000000040121f in main (argc=4, argv=0x7fbffff808) at
mdb-export.c:157
>
> (gdb) bt full
> ...
> is_fixed = 53 '5', colnum = 0, offset = 4196064}, {value = 0x515610,
siz = 1569807600,
> start = 52, is_null = 48 '0', is_fixed = 246 'ö', colnum = 127, offset
= -1073744400}, {
> value = 0x93635d7, siz = 4196064, start = 0, is_null = 0 '\0',
is_fixed = 0 '\0', colnum = 0,
> offset = 1568700462}, {value = 0x0, siz = 1, start = 0, is_null = 0
'\0', is_fixed = 0 '\0',
> colnum = 0, offset = -1789540033}, {value = 0x1000, siz = 73728, start
= 0,
> is_null = 2 '\002', is_fixed = 9 '\t', colnum = 0, offset = 13795360},
{value = 0x1,
> siz = 33188, start = 1338, is_null = 204 'Ì', is_fixed = 0 '\0',
colnum = 0, offset = 0}, {
> value = 0x582f0000, siz = 4096, start = 0, is_null = 144 '\220',
is_fixed = 34 '"',
> colnum = 0, offset = 1121438862}, {value = 0x325bbbe9, siz =
1111569942, start = 0,
> is_null = 0 '\0', is_fixed = 0 '\0', colnum = 0, offset = 1121152771},
{value = 0x0, siz = 0,
> start = 0, is_null = 0 '\0', is_fixed = 0 '\0', colnum = 0, offset =
0}, {value = 0x1000,
> siz = 18, start = 0, is_null = 20 '\024', is_fixed = 38 '&', colnum =
0, offset = 5252608}, {
> value = 0x7fbffff630, siz = -1789540359, start = 42, is_null = 0 '\0',
is_fixed = 16 '\020',
> colnum = 0, offset = 4096}}
> num_fields = 3
> #8 0x0000002a9555ee6e in mdb_fetch_row (table=0x515210) at data.c:402
> mdb = (MdbHandle *) 0x502600
> fmt = (MdbFormatConstants *) 0x2a9566a780
> rows = 44
> rc = 5329424
> pg = 0
> #9 0x000000000040121f in main (argc=4, argv=0x7fbffff808) at
mdb-export.c:157
> j = 3
> mdb = (MdbHandle *) 0x502600
> table = (MdbTableDef *) 0x515210
> col = (MdbColumn *) 0x0
> bound_values = (char **) 0x517290
> bound_lens = (int *) 0x5159b0
> delimiter = 0x502010 ","
> row_delimiter = 0x502030 "\n"
> header_row = 0 '\0'
> quote_text = 1 '\001'
> insert_statements = 1 '\001'
> sanitize = 0 '\0'
> opt = -1
>
>
> Using 'ddd' it dies in
> mdb-export.c:157
> while(mdb_fetch_row(table)) {
>
> Do you have any ideas? I'm not sure how to continue
> debugging... The bug seems to be in
> mdbtools/src/libmdb/data.c
> Maybe related to guint32? (sorry, just guessing).
>
> Thanks anyway for maintaining the mdbtools!
>
> Markus
>
> --
> 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
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