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  • From: "Luke Benstead" <kazade AT gmail.com>
  • To: "FreeTDS Development Group" <freetds AT lists.ibiblio.org>
  • Subject: [freetds] Can someone help me trace a random crash?
  • Date: Fri, 18 May 2007 12:32:23 +0100

Hi,

First of all I'd like to thank everyone who answered my last question, turns
out I wasn't using the latest version after all.

Now I have another problem. I am running a select query which works for some
IDs that I pass in, but not others. The query is a simple SELECT * FROM
WHERE type query.

Here is the last part of the freetds log:

util.c:162:Changed query state from READING to PENDING
odbc.c:3131:odbc_process_tokens: tds_process_tokens returned 1
odbc.c:3132: result_type=4040, TDS_DONE_COUNT=10, TDS_DONE_ERROR=0
odbc.c:3201:odbc_process_tokens: returning result_type 4040
odbc.c:4424:SQLGetData(0x820b0a8, 1, 1, 0xb6d0d608, 2048, 0xb6d0d600)
convert_tds2sql.c:62:convert_tds2sql: src is 39 dest = 1
convert_tds2sql.c:131:convert_tds2sql: outputting character data destlen =
2048
odbc.c:4424:SQLGetData(0x820b0a8, 2, 4, 0xb6d0de78, 4, 0xb6d0de84)
convert_tds2sql.c:62:convert_tds2sql: src is 56 dest = 4
odbc.c:4424:SQLGetData(0x820b0a8, 3, 1, 0xa98d6c54, 5, 0xb6d0d600)
convert_tds2sql.c:62:convert_tds2sql: src is 47 dest = 1
convert_tds2sql.c:131:convert_tds2sql: outputting character data destlen = 5

odbc.c:4424:SQLGetData(0x820b0a8, 4, 1, 0xb6d0d608, 2048, 0xb6d0d600)
convert_tds2sql.c:62:convert_tds2sql: src is 35 dest = 1
convert_tds2sql.c:131:convert_tds2sql: outputting character data destlen =
2048
odbc.c:4424:SQLGetData(0x820b0a8, 5, 1, 0xb6d0d608, 2048, 0xb6d0d600)
convert_tds2sql.c:62:convert_tds2sql: src is 39 dest = 1
convert_tds2sql.c:131:convert_tds2sql: outputting character data destlen =
2048
odbc.c:4424:SQLGetData(0x820b0a8, 6, 1, 0xb6d0d608, 2048, 0xb6d0d600)
convert_tds2sql.c:62:convert_tds2sql: src is 39 dest = 1
convert_tds2sql.c:131:convert_tds2sql: outputting character data destlen =
2048
odbc.c:4424:SQLGetData(0x820b0a8, 7, 4, 0xb6d0de78, 4, 0xb6d0de84)
convert_tds2sql.c:62:convert_tds2sql: src is 48 dest = 4
odbc.c:4424:SQLGetData(0x820b0a8, 8, 4, 0xb6d0de78, 4, 0xb6d0de84)
convert_tds2sql.c:62:convert_tds2sql: src is 56 dest = 4
odbc.c:4424:SQLGetData(0x820b0a8, 9, 1, 0xa98c4a34, 37, 0xb6d0d600)
convert_tds2sql.c:62:convert_tds2sql: src is 36 dest = 1
convert_tds2sql.c:131:convert_tds2sql: outputting character data destlen =
37
odbc.c:4424:SQLGetData(0x820b0a8, 10, 1, 0xb6d0d608, 2048, 0xb6d0d600)
convert_tds2sql.c:62:convert_tds2sql: src is 39 dest = 1
convert_tds2sql.c:131:convert_tds2sql: outputting character data destlen =
2048
odbc.c:4424:SQLGetData(0x820b0a8, 11, 1, 0xb6d0d608, 2048, 0xb6d0d600)
convert_tds2sql.c:62:convert_tds2sql: src is 35 dest = 1
convert_tds2sql.c:131:convert_tds2sql: outputting character data destlen =
2048
odbc.c:4424:SQLGetData(0x820b0a8, 12, 1, 0xb6d0d608, 2048, 0xb6d0d600)
odbc.c:4424:SQLGetData(0x820b0a8, 12, 1, 0xb758c893, -2046, 0xb6d0d600)

What I would like to know is does that look like a complete query or has the
log been cut short? I'm trying to figure out if the crash is in FreeTDS or
PyODBC or elsewhere. This is for a website, the weird thing is that no
exception is thrown; the page request is just killed.

That last log line looks suspicious to me as it has a negative value for the
5th parameter whereas all the others are positive. I'm using the nightly
build from the 16th.

Any help anyone could give is appreciated.

Thanks,

Luke




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