Thanks for the report. Your program led me to find *a* bug (a space leak in the statement finalizer thread). Fixing that bug causes your program to succeed consistently, but the bug I found should not have caused the segfault, and I haven't been able to find an underlying problem. I'll push the intermediate fix; if you still run into problems let me know.

Ryan


On 11/12/2011 05:42 PM, Eric Hanchrow wrote:
This is with racket 5.2, from Ubuntu:

Package: racket
Version: 5.2.0-3

When I invoke the following file (on Ubuntu Linux erich-laptop
3.0.0-12-generic #20-Ubuntu SMP Fri Oct 7 14:50:42 UTC 2011 i686 i686
i386 GNU/Linux), I see

$ rm -rfv /tmp/bug* ; racket ./repro.rkt
removed `/tmp/buggissimo'
SIGSEGV MAPERR si_code 1 fault on addr (nil)
/bin/bash: line 1: 12150 Aborted                 racket ./repro.rkt

#lang racket

(require
  (only-in db
           query-exec
           query-value
           sqlite3-connect))

(define db
   (sqlite3-connect #:database "/tmp/buggissimo" #:mode 'create))

(query-exec
  db
  "CREATE TABLE IF NOT EXISTS
         log_word_map(word TEXT, log_id INTEGER,
             PRIMARY KEY (word, log_id)
             ON CONFLICT FAIL)")

(query-exec db "BEGIN TRANSACTION")

(for ([x (in-range 20000)])
   (query-exec
    db
    "insert into log_word_map values (?, ?)"
    (number->string x) 99))

(query-exec db "COMMIT")
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