Thanks for responding so quickly.

I performed the same general experiment.  Here is the output when the
error occurred.

sqlite> .tables
(5386) os_unix.c:28414: (22) mmap(//test.db-shm) -
(5386) statement aborts at 109: [SELECT name FROM sqlite_master WHERE
type IN ('table','view') AND name NOT LIKE 'sqlite_%' UNION ALL SELECT
name FROM sqlite_temp_master WHERE type IN ('table','view') ORDER BY 1]
disk I/O error
Error: disk I/O error
sqlite>

Any ideas?

Korey


-----Original Message-----
From: sqlite-users-boun...@sqlite.org
[mailto:sqlite-users-boun...@sqlite.org] On Behalf Of Richard Hipp
Sent: September 26, 2011 8:38 AM
To: General Discussion of SQLite Database
Subject: Re: [sqlite] Problem with using WAL journal mode in embedded
system (disk I/O error)

On Mon, Sep 26, 2011 at 11:30 AM, Korey Calmettes
<kcalmet...@icontime.com>wrote:

> ~ # sqlite3 test.db
> SQLite version 3.7.7.1 2011-06-28 17:39:05 Enter ".help" for 
> instructions Enter SQL statements terminated with a ";"
> sqlite> .tables
> test
> sqlite> pragma journal_mode=wal;
> wal
> sqlite> .tables
> Error: disk I/O error
> sqlite>
>
>
> Any ideas on what may be causing this error and any suggestions for a 
> work-around?
>

Type:

    .log stdout

at the beginning of this session and run your experiment again please.
The extra output might give some clues.


--
D. Richard Hipp
d...@sqlite.org
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