sqlite_ioerr_shmmap
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SQLite · Database Engine
SQLite code SQLITE_IOERR_SHMMAP signals ioerr shmmap in database file/WAL access and integrity.
Quick Answer
Error code SQLITE_IOERR_SHMMAP on your SQLite Database Engine means: SQLite code SQLITE_IOERR_SHMMAP signals ioerr shmmap in database file/WAL access and integrity.. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Capture SQL statement, sqlite3 return path, and DB mode when SQLITE_IOERR_SHMMAP occurs.
2
Run a focused reproduction for ioerr_shmmap using the same transaction and pragma settings.
3
Inspect database file health, journal/WAL behavior, and lock ownership depending on database file/WAL access and integrity.
4
Apply a precise fix in query logic, schema, or runtime flags to remove SQLITE_IOERR_SHMMAP.
5
Re-test on load and verify SQLITE_IOERR_SHMMAP does not recur in application logs.
Pro Tip
This issue typically requires professional diagnosis. Attempting this fix without proper training could cause further problems.
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