Hi, I cannot duplicate your error on Win7_64 or OpenSuse_64.
On Win7_64, I ran this test: NB. sqlite test require '~addons\data\sqlite\sqlite.ijs' DBN=:'z:\test.sqlite' footst=: 3 : 0 ferase <DBN db=:'psqlite'conew~DBN exec__db'create table data (name string, shortname string, stage integer, enc blob);' f=:'D:\jtest.bin' s=: 1!:1 <f ('name';'name';100;s) apply__db 'insert into data values (?,?,?,?);' destroy__db'' ) foord=: 3 : 0 db=:'psqlite'conew~DBN res=:strquery__db 'select enc from data;' destroy__db'' ) --- I got this result running on j604_32 and J701_32: footst'' 1 foord'' 1 foord'' 1 foord'' 1 res +----------------------------------------------------------------------------... |enc +----------------------------------------------------------------------------... |4wAAAAAAAAAgAAAAAAAAAOkYAAAAAAAAAQAAAAAAAADpGAAAAAAAAHDHAAAAAAAAyMcAAAAAAAAg... +----------------------------------------------------------------------------... Where the file jtest.bin was downloaded from your url. I made minor modifications to the script and ran it on j701_32 on OpenSuse_64. It worked there also. All the best, David Mitchell On 2/11/2012 22:58, S Suon wrote: > > > Please note that I pasted the URL incorrectly; there's a space at the end > that for some reason was pasted as part of the URL. > > Here's the correct URL: > http://pastebin.com/raw.php?i=tMBbfcRQ > > > > ________________________________ > From: S Suon<tjoa...@yahoo.com> > To: "programming@jsoftware.com"<programming@jsoftware.com> > Sent: Saturday, February 11, 2012 10:52 PM > Subject: [Jprogramming] Occasional but consistent seg faults using sqlite; > the simplest case I can reproduce > > Hi, all: > > SUMMARY: > > Blob of only 131k length seems to cause seg fault using sqlite. > > DETAILS: > > I have been tormented by occasional seg faults that happen when I use > sqlite. The good thing is that whatever case causes a crash, I can > produce it all the time. > > Here's what I use to create a crash: > I create the following table: > CREATE TABLE data (name string, shortname string, stage integer, enc > blob); > > Then I insert one row into it with this code (copied from example when I > downloaded data/sqlite): > require 'data/sqlite' > db=: 'psqlite'conew~ './whatever.sqlite' > > fin=. 1!:21< > '/tmp/longstring' > s=. 1!:1< fin > 1!:22 fin > ('name';'name';100;s) apply__db 'insert into data values (?,?,?,?);' > > > The > content of /tmp/longstring is 131038 bytes long. Its entire text > content can be found here: http://pastebin.com/raw.php?i=tMBbfcRQ . It's > nothing special; just readable > text characters. > > > Later, when I attempt to read that one row from sqlite, I get a segfault: > strquery__db 'select enc from data;' > > I've played around a while to determine the actual reason. I'm certain it's > not just the length, because I've had success with strings of many > megabytes. > > Specs: > I am running 64-bit Ubuntu 11.10 Oneirc - also fails on Ubuntu Maverick > > j 701 - also fails on j602 > the default sqlite 3 library that came with Oneirc - also fails with sqlite > 3.7.10 > > > Can anyone help? I haven't seen this sort of problem while looking through > the jsoftware archives. > > --- Sarino Suon > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm